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@WebService(wsdlLocation)
and Metadata
handleMessage
handleFault
close
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XML [1] is a platform-independent means of representing structured information. XML Web Services use XML as the basis for communication between Web-based services and clients of those services and inherit XML’s platform independence. SOAP [2] [3] [4] describes one such XML based message format and "defines, using XML technologies, an extensible messaging framework containing a message construct that can be exchanged over a variety of underlying protocols."
WSDL [5] is "an XML format for describing network services as a set of endpoints operating on messages containing either document-oriented or procedure-oriented information." WSDL can be considered the de-facto service description language for XML Web Services.
JAX-RPC 1.0 [6] defined APIs and conventions for supporting RPC oriented XML Web Services in the Java platform. Jakarta XML RPC [7] added support for the WS-I Basic Profile 1.0 [8] to improve interoperability between Jakarta XML RPC implementations and with services implemented using other technologies.
Jakarta XML Web Services (this specification) is a follow-on to Jakarta XML RPC, extending it as described in the following sections.
Throughout the document, references to JAXB refer to the Jakarta XML Binding unless otherwise noted and references to JAX-WS refer to the Jakarta XML Web Services unless otherwise noted.
Since the release of JAX-RPC 1.0 [6] , new specifications and new versions of the standards it depends on have been released. Jakarta XML Web Services relates to these specifications and standards as follows:
Due primarily to scheduling concerns, JAX-RPC 1.0 defined its own data
binding facilities. With the release of JAXB 1.0
[9]
there is no reason to maintain two separate sets of XML mapping
rules in the Java platform. Jakarta XML Web Services will delegate data
binding-related tasks to the Jakarta XML Binding
[39]
specification that is being developed in parallel with Jakarta XML Web Services.
Jakarta XML Binding
[39]
will add support for Java to XML
mapping, additional support for less used XML schema constructs, and
provide bidirectional customization of Java
⇔ XML data binding. Jakarta XML Web Services will allow
full use of JAXB provided facilities including binding customization
and optional schema validation.
JAX-WS 2.1 requires JAXB 2.1 [11] .
JAX-WS 2.2 requires JAXB 2.2 [12] .
JAX-WS 2.3 requires JAXB 2.3 [13] .
Jakarta XML Web Services 3.0 requires Jakarta XML Binding 3.0 [39] .
Whilst SOAP 1.1 is still widely deployed, it’s expected that services will migrate to SOAP 1.2 [3] [4] now that it is a W3C Recommendation. Jakarta XML Web Services will add support for SOAP 1.2 whilst requiring continued support for SOAP 1.1.
The W3C is expected to progress WSDL 2.0 [14] to Recommendation during the lifetime of this JSR. Jakarta XML Web Services will add support for WSDL 2.0 whilst requiring continued support for WSDL 1.1.
The expert group decided against this goal for this release. We will look at adding support in a future revision of the Jakarta XML Web Services specification.
Jakarta XML RPC added support for WS-I Basic Profile 1.0. WS-I Basic Profile 1.1 is expected to supersede 1.0 during the lifetime of this specificatoin and Jakarta XML Web Services will add support for the additional clarifications it provides.
Jakarta XML Web Services will define the use of Java annotations [15] to simplify the most common development scenarios for both clients and servers.
Jakarta XML Web Services will align with and complement the annotations defined by Jakarta XML Web Services Metadata [16] .
The Jakarta Enterprise Web Services specification
[17]
defined
jaxrpc-mapping-info
deployment descriptor provides deployment time Java
⇔ WSDL mapping functionality. In
conjunction with Jakarta Enterprise Web Services Metadata
[16]
,
Jakarta Enterprise Web Services will complement this
mapping functionality with development time Java annotations that
control Java ⇔ WSDL mapping.
Jakarta XML Web Services will align with and complement the security APIs defined by JSR 183 [18] .
Jakarta XML Web Services will add support for client side asynchronous operations.
Jakarta XML Web Services will improve the separation between the XML message format and the underlying transport mechanism to simplify use of Jakarta XML Web Services with non-HTTP transports.
Jakarta XML Web Services will simplify client and service access to the messages underlying an exchange.
Jakarta XML RPC session management capabilities are tied to HTTP. Jakarta XML Web Services will add support for message based session management.
Jakarta XML Web Services will simplify the development of handlers and will provide a mechanism to allow handlers to collaborate with service clients and service endpoint implementations.
Jakarta XML Web Services will describe techniques and mechanisms to ease the burden on developers when creating new versions of existing services.
Binary compatibility between Jakarta XML RPC and Jakarta XML Web Services implementation runtimes.
Jakarta XML Web Services will defer data binding to Jakarta XML Binding [39] ; it is not a goal to provide a plug-in API to allow other types of data binding technologies to be used in place of Jakarta XML Binding. However, Jakarta XML Web Services will maintain the capability to selectively disable data binding to provide an XML based fragment suitable for use as input to alternative data binding technologies.
Use of the SOAP encoding is essentially deprecated in the web services
community, e.g., the WS-I Basic Profile
[8]
excludes SOAP encoding. Instead,
literal usage is preferred, either in the RPC or document style.
SOAP 1.1 encoding is supported in JAX-RPC 1.0 and Jakarta XML RPC but its support
in Jakarta XML Web Services runs counter to the goal of delegation of
data binding to Jakarta XML Binding. Therefore Jakarta XML Web Services
will make support for SOAP 1.1 encoding optional and defer description of
it to Jakarta XML RPC.
Support for the SOAP 1.2 Encoding
[4]
is optional in SOAP 1.2 and Jakarta XML Web Services will not add
support for SOAP 1.2 encoding.
JAX-RPC 1.0 and JAXB 1.0 bind XML to Java in different ways. Generating source code that works with unmodified Jakarta XML RPC client source code is not a goal.
Jakarta XML Web Services relies on many of the Java language features added in Java SE 5.0. It is not a goal to support Jakarta XML Web Services on Java versions prior to Java SE 5.0.
It is not a goal of Jakarta XML Web Services to describe registration and discovery of services via UDDI or ebXML RR. This capability is provided independently by Jakarta XML Registries [19] .
Jakarta XML Web Services specification describes the WSDL ⇔ Java mapping, but data binding is delegated to Jakarta XML Binding [39] . The specification must clearly designate where Jakarta XML Binding rules apply to the WSDL ⇔ Java mapping without reproducing those rules and must describe how Jakarta XML Binding capabilities (e.g., the Jakarta XML Binding binding language) are incorporated into Jakarta XML Web Services. Jakarta XML Web Services is required to be able to influence the Jakarta XML Binding binding, e.g., to avoid name collisions and to be able to control schema validation on serialization and deserialization.
WSDL is the de-facto service description language for XML Web Services. The specification must specify a standard WSDL ⇔ Java mapping. The following versions of WSDL must be supported:
WSDL 1.1 [5] as clarified by the WS-I Basic Profile(Ballinger, Ehnebuske, Gudgin, et al. 2004; Ballinger, Ehnebuske, Ferris, et al. 2004)
The standardized WSDL mapping will describe the default WSDL ⇔ Java mapping. The default mapping may be overridden using customizations as described below.
The specification must provide a standard way to customize the WSDL ⇔ Java mapping. The following customization methods will be specified:
In conjunction with Jakarta XML Binding [39] and Jakarta XML Web Services Metadata [16] specifications, the specification will define a set of standard annotations that may be used in Java source files to specify the mapping from Java artifacts to their associated WSDL components. The annotations will support mapping to WSDL 1.1.
In conjunction with Jakarta XML Binding [39] and Jakarta XML Web Services Metadata [16] specifications, the specification will define a set of standard annotations that may be used either within WSDL documents or as in an external form to specify the mapping from WSDL components to their associated Java artifacts. The annotations will support mapping from WSDL 1.1.
The specification must describe standard bindings to the following protocols:
The specification must describe standard bindings to the following protocols:
The specification must include a standardized handler framework that describes:
The framework will offer data binding facilities to handlers and will support handlers that are decoupled from the Jakarta SOAP with Attachments API.
The framework will describe a mechanism for communicating properties between handlers and the associated service clients and service endpoint implementations.
The
handleResponse
and
handleFault
methods will be unified and the
the declarative model for handlers will be improved.
The specification must describe techniques and mechanisms to support versioning of service endpoint interfaces. The facilities must allow new versions of an interface to be deployed whilst maintaining compatibility for existing clients.
There must be a detailed description of the generated method signatures to support both asynchronous and synchronous method invocation in stubs generated by Jakarta XML Web Services. Both forms of invocation will support a user configurable timeout period.
The specification must describe a standard session management mechanism including:
Definition of a session interface and methods to obtain the session interface and initiate sessions for handlers and service endpoint implementations.
The session management mechanism must support HTTP cookies and URL rewriting.
The session management mechanism must support SOAP based session information.
A developer wishes to add support for a reliable messaging SOAP feature to an existing service endpoint. The support takes the form of a Jakarta XML Web Services handler.
A developer wishes to log incoming and outgoing messages for later analysis, e.g., checking messages using the WS-I testing tools.
A developer wishes to check incoming and outgoing messages for conformance to one or more WS-I profiles at runtime.
The keywords 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'MAY', and 'OPTIONAL' in this document are to be interpreted as described in RFC 2119 [22] .
For convenience, conformance requirements are called out from the main text as follows:
◊ Conformance (Example): Implementations MUST do something.
A list of all such conformance requirements can be found in appendix [confreqs] .
Java code and XML fragments are formatted as shown in figure 1, “Example Java Code” :
package com.example.hello; public class Hello { public static void main(String args[]) { System.out.println("Hello World");This specification uses a number of namespace prefixes throughout; they are listed in Table 1, “Prefixes and Namespaces used in this specification.”. Note that the choice of any namespace prefix is arbitrary and not semantically significant (see XML Infoset[23]).
Table 1. Prefixes and Namespaces used in this specification.A normative XML Schema[24][25] document for the http://www.w3.org/2003/05/soap-envelope namespace can be found at http://www.w3.org/2003/05/soap-envelope.
http://www.w3.org/2001/XMLSchema
The namespace of the XML schema[24][25] specification
http://schemas.xmlsoap.org/wsdl/
The namespace of the WSDL schema[5]
http://schemas.xmlsoap.org/wsdl/soap/
The namespace of the WSDL SOAP binding schema[24][25]
https://jakarta.ee/xml/ns/jaxb
The namespace of the Jakarta XML Binding[9] specification
jaxws
https://jakarta.ee/xml/ns/jaxws
The namespace of the Jakarta XML Web Services specification
http://www.w3.org/2005/08/addressing
The namespace of the WS-Addressing 1.0[26] schema
http://www.w3.org/2007/05/addressing/metadata
namespace of the WS-Addressing 1.0 - Metadata[27] schemahttp://www.w3.org/ns/ws-policy
namespace of the Web Services Policy 1.5 - Framework[28] schemaNamespace names of the general form 'http://example.org/…' and 'http://example.com/…' represent application or context-dependent URIs (see RFC 2396[21]).
All parts of this specification are normative, with the exception of examples, notes and sections explicitly marked as 'Non-Normative'.
1.6. Expert Group Members
The following people have contributed to this specification:
Chavdar Baikov (SAP AG)
Russell Butek (IBM)
Manoj Cheenath (BEA Systems)
Shih-Chang Chen (Oracle)
Claus Nyhus Christensen (Trifork)
Ugo Corda (SeeBeyond Technology Corp)
Glen Daniels (Sonic Software)
Alan Davies (SeeBeyond Technology Corp)
Thomas Diesler (JBoss, Inc.)
Jim Frost (Art Technology Group Inc)
Alastair Harwood (Cap Gemini)
Marc Hadley (Sun Microsystems, Inc.)
Kevin R. Jones (Developmentor)
Lukas Jungmann (Oracle)
Anish Karmarkar (Oracle)
Toshiyuki Kimura (NTT Data Corp)
Jim Knutson (IBM)
Doug Kohlert (Sun Microsystems, Inc)
Daniel Kulp (IONA Technologies PLC)
Sunil Kunisetty (Oracle)
Changshin Lee (Tmax Soft, Inc)
Carlo Marcoli (Cap Gemini)
Srividya Natarajan (Nokia Corporation)
Sanjay Patil (SAP AG)
Greg Pavlik (Oracle)
Bjarne Rasmussen (Novell, Inc)
Sebastien Sahuc (Intalio, Inc.)
Rahul Sharma (Motorola)
Rajiv Shivane (Pramati Technologies)
Richard Sitze (IBM)
Dennis M. Sosnoski (Sosnoski Software)
Christopher St. John (WebMethods Corporation)
Mark Stewart (ATG)
Neal Yin (BEA Systems)
Brian Zotter (BEA Systems)
Nicholas L Gallardo (IBM)
Alessio Soldano (Red Hat)1.7. Acknowledgements
Robert Bissett, Arun Gupta, Graham Hamilton, Mark Hapner, Jitendra Kotamraju, Vivek Pandey, Santiago Pericas-Geertsen, Eduardo Pelegri-Llopart, Rama Pulavarthi, Paul Sandoz, Bill Shannon, and Kathy Walsh (all from Sun Microsystems) have provided invaluable technical input to the JAX-WS 2.0 specification.
Roberto Chinnici, Marc Hadley, Kohsuke Kawaguchi, and Bill Shannon (all from Sun Microsystems) have provided invaluable technical input to the JAX-WS 2.2 specification. I would like to thank Rama Pulavarthi for his contributions to the 2.2 reference implementation and to the specification. JAX-WS TCK team (Arthur Frechette, Alan Frechette) and SQE team (Jonathan Benoit) assisted the conformance testing of the 2.2 specification.
This chapter describes the mapping from WSDL 1.1 to Java. This mapping is used when generating web service interfaces for clients and endpoints from a WSDL 1.1 description.
◊ Conformance (WSDL 1.1 support): Implementations MUST support mapping WSDL 1.1 to Java.
The following sections describe the default mapping from each WSDL 1.1 construct to the equivalent Java construct. In WSDL 1.1, the separation between the abstract port type definition and the binding to a protocol is not complete. Bindings impact the mapping between WSDL elements used in the abstract port type definition and Java method parameters. Section 2.6, “Binding” describes binding dependent mappings.
An application MAY customize the mapping using embedded binding declarations (see Section 8.3, “Embedded Binding Declarations”) or an external binding file (see Section 8.4, “External Binding File”).
◊ Conformance (Customization required): Implementations MUST support customization of the WSDL 1.1 to Java mapping using the Jakarta XML Web Services binding language defined in Chapter 8, Customizations.
In order to enable annotations to be used at runtime for method dispatching and marshalling, this specification requires generated Java classes and interfaces to be annotated with the Web service annotations described in Section 7.11, “Annotations Defined by Jakarta XML Web Services Metadata”. The annotations present on a generated class MUST faithfully reflect the information in the WSDL document(s) that were given as input to the mapping process, as well as the customizations embedded in them and those specified via any external binding files.
◊ Conformance (Annotations on generated classes): The values of all the properties of all the generated annotations MUST be consistent with the information in the source WSDL document and the applicable external binding files.
2.1. Definitions
A WSDL document has a root
wsdl:definitions
element. Awsdl:definitions
element and its associatedtargetNamespace
attribute is mapped to a Java package. Jakarta XML Binding[39] (see appendix D) defines a standard mapping from a namespace URI to a Java package name. By default, this algorithm is used to map the value of awsdl:definitions
element’stargetNamespace
attribute to a Java package name.◊ Conformance (Definitions mapping): In the absence of customizations, the Java package name is mapped from the value of a
wsdl:definitions
element’stargetNamespace
attribute using the algorithm defined by Jakarta XML Binding[39].An application MAY customize this mapping using the
jaxws:package
binding declaration defined in Section 8.7.1, “Definitions”.No specific authoring style is required for the input WSDL document; implementations should support WSDL that uses the WSDL and XML Schema import directives.
◊ Conformance (WSDL and XML Schema import directives): Implementations MUST support the WS-I Basic Profile 1.1[20] defined mechanisms (See R2001, R2002, and R2003) for use of WSDL and XML Schema import directives.
2.1.1. Extensibility
WSDL 1.1 allows extension elements and attributes to be added to many of its constructs. Jakarta XML Web Services specification specifies the mapping to Java of the extensibility elements and attributes defined for the SOAP and MIME bindings. Jakarta XML Web Services does not address mapping of any other extensibility elements or attributes and does not provide a standard extensibility framework though which such support could be added in a standard way. Future versions of Jakarta XML Web Services might add additional support for standard extensions as these become available.
◊ Conformance (Optional WSDL extensions): An implementation MAY support mapping of additional WSDL extensibility elements and attributes not described in Jakarta XML Web Services.
Note that such support may limit interoperability and application portability.
A WSDL port type is a named set of abstract operation definitions. A
wsdl:portType
element is mapped to a Java interface in the package mapped from thewsdl:definitions
element (see Section 2.1, “Definitions” for a description ofwsdl:definitions
mapping). A Java interface mapped from awsdl:portType
is called a Service Endpoint Interface or SEI for short.◊ Conformance (SEI naming): In the absence of customizations, the name of an SEI MUST be the value of the
name
attribute of the correspondingwsdl:portType
element mapped according to the rules described in Section 2.8, “XML Names”.An application MAY customize this mapping using the
jaxws:class
binding declaration defined in Section 8.7.2, “PortType”.◊ Conformance (
jakarta.jws.WebService
required): A mapped SEI MUST be annotated with ajakarta.jws.WebService
annotation.A WSDL may define additional types via type substitution that are not referenced by a service directly but may still need to be marshalled by Jakarta XML Web Services. The
jakarta.xml.bind.XmlSeeAlso
annotation from Jakarta XML Binding is used on the generated SEI to specify any additional types from the WSDL.◊ Conformance (
jakarta.xml.bind.XmlSeeAlso
required): An SEI generated from a WSDL that defines types not directly referenced by thePort
MUST contain thejakarta.xml.bind.XmlSeeAlso
annotation with all of the additional types referenced either directly or indirectly.2. Directly and indirectly @XmlSeeAlso annotated SEI// Types generated when importing WSDL package example; public class A { ... } package example1; public class B extends A { ... } package example2; public class C extends A { ... } // Directly annotated SEI with classes B and C @WebService @XmlSeeAlso({B.class, C.class}) public interface MyService { public A echo(A a); // Indirectly annotated SEI using generated JAXB ObjectFatories @XmlSeeAlso({example1.ObjectFactory.class, example2.ObjectFactory.class}) public interface MyService { public A echo(A a);Figure 2, “Directly and indirectly @XmlSeeAlso annotated SEI” shows how an SEI can be annotated with
jakarta.xml.bind.XmlSeeAlso
. This figures shows some of the types that may have been created while importing a WSDL and the different approaches to annotating the SEI.An SEI contains Java methods mapped from the
wsdl:operation
child elements of the correspondingwsdl:portType
, see Section 2.3, “Operation” for further details onwsdl:operation
mapping. WSDL 1.1 does not support port type inheritance so each generated SEI will contain methods for all operations in the corresponding port type.2.3. Operation
Each
wsdl:operation
in awsdl:portType
is mapped to a Java method in the corresponding Java service endpoint interface.◊ Conformance (Method naming): In the absence of customizations, the name of a mapped Java method MUST be the value of the
name
attribute of thewsdl:operation
element mapped according to the rules described in Section 2.8, “XML Names”.An application MAY customize this mapping using the
jaxws:method
binding declaration defined in Section 8.7.3, “PortType Operation”.◊ Conformance (
jakarta.jws.WebMethod
required): A mapped Java method MUST be annotated with ajakarta.jws.WebMethod
annotation. The annotation MAY be omitted if all its properties would have the default values.The WS-I Basic Profile[20] R2304 requires that operations within a
wsdl:portType
have unique values for theirname
attribute so mapping of WS-I compliant WSDL descriptions will not generate Java interfaces with overloaded methods. However, for backwards compatibility, Jakarta XML Web Services supports operation name overloading provided the overloading does not cause conflicts (as specified in the Java Language Specification[29]) in the mapped Java service endpoint interface declaration.◊ Conformance (Transmission primitive support): An implementation MUST support mapping of operations that use the
one-way
andrequest-response
transmission primitives.◊ Conformance (Using
jakarta.jws.OneWay
): A Java method mapped from a one-way operation MUST be annotated with ajakarta.jws.OneWay
annotation.Mapping of
notification
andsolicit-response
operations is out of scope.2.3.1. Message and Part
Each
wsdl:operation
refers to one or morewsdl:message
elements via childwsdl:input
,wsdl:output
, andwsdl:fault
elements that describe the input, output, and fault messages for the operation respectively. Each operation can specify one input message, zero or one output message, and zero or more fault messages.Fault messages are mapped to application specific exceptions (see Section 2.5, “Fault”). The contents of input and output messages are mapped to Java method parameters using two different styles: non-wrapper style and wrapper style. The two mapping styles are described in the following subsections. Note that the binding of a port type can affect the mapping of that port type to Java, see Section 2.6, “Binding” for details.
◊ Conformance (Using
jakarta.jws.SOAPBinding
): An SEI mapped from a port type that is bound using the WSDL SOAP binding MUST be annotated with ajakarta.jws.SOAPBinding
annotation describing the choice of style, encoding and parameter style. The annotation MAY be omitted if all its properties would have the default values (i.e. document/literal/wrapped).◊ Conformance (Using
jakarta.jws.WebParam
): Generated Java method parameters MUST be annotated with ajakarta.jws.WebParam
annotation. If the style is rpc or if the style is Document and the parameter style is BARE then thepartName
element ofjakarta.jws.WebParam
MUST refer to thewsdl:part
name of the parameter.◊ Conformance (Using
jakarta.jws.WebResult
): Generated Java methods MUST be annotated with ajakarta.jws.WebResult
annotation. If the style is rpc or if the style is Document and the parameter style is BARE then thepartName
element ofjakarta.jws.WebResult
MUST refer to thewsdl:part
name of the parameter. The annotation MAY be omitted if all its properties would have the default values.WSDL description may have
wsam:Action
attribute onwsdl:input
,wsdl:output
,wsdl:fault
elements in awsdl:operation
. Thiswsam:Action
attribute is used to explicitly define the value of the WS-Addressing Action header and this needs to be mapped on to the corresponding Java method.◊ Conformance (Generating @Action): Generated Java Methods MUST be annotated with
@Action
and@FaultAction
annotations for the correspondingwsdl:input
,wsdl:output
andwsdl:fault
messages that containwsam:Action
attributes◊ Conformance (Generating @Action input): If a
wsdl:input
element contains awsam:Action
attribute, the value of the attribute MUST be set to theinput
element of@Action
◊ Conformance (Generating @Action output): If a
wsdl:output
element contains awsam:Action
attribute, the value of the attribute MUST be set to theoutput
element of@Action
◊ Conformance (Generating @Action fault): If a
wsdl:fault
element contains awsam:Action
attribute, the value of the attribute MUST be set to the value element of@FaultAction
. TheclassName
element of@FaultAction
MUST be the exception class name associated with thewsdl:fault
Figure 3, “Mapping of wsam:Action metadata” shows an example of the
wsam:Action
mapping described above.3. Mapping of wsam:Action metadata<operation name="getPrice"> <input message="tns:getPrice" /> <output message="tns:getPriceResponse" wsam:Action="outAction"/> <fault name="InvalidTickerException" message="tns:InvalidTickerException" wsam:Action="faultAction"/> </operation> // the mapped java method @Action(output = "outAction", fault = { @FaultAction(className=InvalidTickerException.class, value="faultAction")}) float getPrice(String ticker) throws InvalidTickerException;When generating an SEI from WSDL and XML schema, occasionally ambiguities occur on what XML infoset should be used to represent a method’s return value or parameters. In order to remove these ambiguities, Jakarta XML Binding annotations may need to be generated on methods and method parameters to assure that the return value and the parameters are marshalled with the proper XML infoset. A Jakarta XML Binding annotation on the method is used to specify the binding of a methods return type while an annotation on the parameter specifies the binding of that parameter. If the default XML infoset for the return type or parameters correctly represents the XML infoset, no Jakarta XML Binding annotations are needed.
◊ Conformance (use of Jakarta XML Binding annotations): An SEI method MUST contain the appropriate Jakarta XML Binding annotations to assure that the proper XML infoset is used when marshalling/unmarshalling the return type. Parameters of an SEI method MUST contain the appropriate Jakarta XML Binding annotations to assure that the proper XML infoset is used when marshalling/unmarshalling the parameters of the method. The set of Jakarta XML Binding annotations that MUST be supported are:
jakarta.xml.bind.annotation.XmlAttachementRef
,jakarta.xml.bind.annotation.XmlList
,jakarta.xml.bind.XmlMimeType
andjakarta.xml.bind.annotation.adapters.XmlJavaTypeAdapter
.2.3.1.1. Non-wrapper Style
A
wsdl:message
is composed of zero or morewsdl:part
elements. Message parts are classified as follows:The message part is present only in the operation’s input message.
The message part is present only in the operation’s output message.
in/out
The message part is present in both the operation’s input message and output message.
Two parts are considered equal if they have the same values for their
name
attribute and they reference the same global element or type. Using non-wrapper style, message parts are mapped to Java parameters according to their classification as follows:The message part is mapped to a method parameter.
The message part is mapped to a method parameter using a holder class (see Section 2.3.3, “Holder Class”) or is mapped to the method return type.
in/out
The message part is mapped to a method parameter using a holder class.
◊ Conformance (Non-wrapped parameter naming): In the absence of
any customizations, the
name of a mapped Java method parameter MUST be the value of the name
attribute of the wsdl:part
element mapped according to the rules
described in Section 2.8, “XML Names” and Section 2.8.1, “Name Collisions”.
An application MAY customize this mapping using the jaxws:parameter
binding declaration defined in Section 8.7.3, “PortType Operation”.
Section 2.3.2, “Parameter Order and Return Type” defines rules that govern the ordering of parameters in mapped Java methods and identification of the part that is mapped to the method return type.
A WSDL operation qualifies for wrapper style mapping only if the following criteria are met:
The input message part refers to a global element declaration whose localname is equal to the operation name
The output message (if present) part refers to a global element declaration
The elements referred to by the input and output message (if
present) parts (henceforth referred to as wrapper elements) are both
complex types defined using the xsd:sequence
compositor
The wrapper elements only contain child elements, they MUST not
contain other structures such as wildcards (element or attribute),
xsd:choice
, substitution groups (element references are not permitted)
or attributes; furthermore, they MUST not be nillable.
◊ Conformance (Default mapping mode): Operations that do not meet the criteria above MUST be mapped using non-wrapper style.
In some cases use of the wrapper style mapping can lead to undesirable Java method signatures and use of non-wrapper style mapping would be preferred.
◊ Conformance (Disabling wrapper style): An implementation MUST support use of the
jaxws:enableWrapperStyle
binding declaration to enable or disable the
wrapper style mapping of operations (see
Section 8.7.3, “PortType Operation”).
Using wrapper style, the child elements of the wrapper element (henceforth called wrapper children) are mapped to Java parameters, wrapper children are classified as follows:
The wrapper child is only present in the input message part’s wrapper element.
The wrapper child is only present in the output message part’s wrapper element.
in/out
The wrapper child is present in both the input and output message part’s wrapper element.
Two wrapper children are considered equal if they have the same local name, the same XML schema type and the same Java type after mapping (see Section 2.4, “Types” for XML Schema to Java type mapping rules). The mapping depends on the classification of the wrapper child as follows:
The wrapper child is mapped to a method parameter.
The wrapper child is mapped to a method parameter using a holder class (see Section 2.3.3, “Holder Class”) or is mapped to the method return value.
in/out
The wrapper child is mapped to a method parameter using a holder class.
◊ Conformance (Wrapped parameter naming): In the absence of customization, the name of a mapped Java method parameter MUST be the value of the local name of the wrapper child mapped according to the rules described in Section 2.8, “XML Names” and Section 2.8.1, “Name Collisions”.
An application MAY customize this mapping using the jaxws:parameter
binding declaration defined in Section 8.7.3, “PortType Operation”.
◊ Conformance (Parameter name clash): If the mapping results in two Java parameters with the same name and one of those parameters is not mapped to the method return type, see Section 2.3.2, “Parameter Order and Return Type”, then this is reported as an error and requires developer intervention to correct, either by disabling wrapper style mapping, modifying the source WSDL or by specifying a customized parameter name mapping.
◊ Conformance (Using jakarta.xml.ws.RequestWrapper
):
If wrapper style is used, generated Java methods MUST be annotated with a
jakarta.xml.ws.RequestWrapper
annotation. The annotation MAY be omitted
if all its properties would have the default values.
◊ Conformance (Using jakarta.xml.ws.ResponseWrapper
): If wrapper style is used,
generated Java methods MUST be annotated with a
jakarta.xml.ws.ResponseWrapper
annotation. The annotation MAY be omitted
if all its properties would have the default values.
Figure 4, “Wrapper and non-wrapper mapping styles” shows a WSDL extract and the Java method that results from using wrapper and non-wrapper mapping styles. For readability, annotations are omitted.
<!-- WSDL extract --> <types> <xsd:element name="setLastTradePrice"> <xsd:complexType> <xsd:sequence> <xsd:element name="tickerSymbol" type="xsd:string"/> <xsd:element name="lastTradePrice" type="xsd:float"/> </xsd:sequence> </xsd:complexType> </xsd:element> <xsd:element name="setLastTradePriceResponse"> <xsd:complexType> <xsd:sequence/> </xsd:complexType> </xsd:element> </types> <message name="setLastTradePrice"> <part name="setLastTradePrice" element="tns:setLastTradePrice"/> </message> <message name="setLastTradePriceResponse"> <part name="setLastTradePriceResponse" element="tns:setLastTradePriceResponse"/> </message> <portType name="StockQuoteUpdater"> <operation name="setLastTradePrice"> <input message="tns:setLastTradePrice"/> <output message="tns:setLastTradePriceResponse"/> </operation> </portType> // non-wrapper style mapping SetLastTradePriceResponse setLastTradePrice( SetLastTradePrice setLastTradePrice); // wrapper style mapping void setLastTradePrice(String tickerSymbol, float lastTradePrice);
A wsdl:operation
element may have a parameterOrder
attribute that
defines the ordering of parameters in a mapped Java method as follows:
Message parts are either listed or unlisted. If the value of a
wsdl:part
element’s name
attribute is present in the
parameterOrder
attribute then the part is listed, otherwise it is
unlisted.
R2305 in WS-I Basic Profile 1.1[20] requires that if the parameterOrder attribute is present then at most one part may be unlisted. However, the algorithm outlined in this section supports WSDLs that do not conform with this requirement.
Parameters that are mapped from message parts are either listed or unlisted. Parameters that are mapped from listed parts are listed; parameters that are mapped from unlisted parts are unlisted.
Parameters that are mapped from wrapper children (wrapper style mapping only) are unlisted.
Listed parameters appear first in the method signature in the order in
which their corresponding parts are listed in the parameterOrder
attribute.
Unlisted parameters either form the return type or follow the listed parameters
The return type is determined as follows:
Only parameters that are mapped from parts in the abstract output
message may form the return type, parts from other messages (see e.g.
Section 2.6.2.1, “Header Binding Extension”) do not qualify. If there is a single
unlisted out
part in the abstract output message then it forms the
method return type, otherwise the return type is void
.
If there is a single out
wrapper child then it forms the method
return type, if there is an out
wrapper child with a local name of
"return" then it forms the method return type, otherwise the return type
is void
.
Parameters mapped from in
and in/out
parts appear in the same
order the corresponding parts appear in the input message.
Parameters mapped from in
and in/out
wrapper children (wrapper
style mapping only) appear in the same order as the corresponding
elements appear in the wrapper.
Parameters mapped from out
parts appear in the same order the
corresponding parts appear in the output message.
Parameters mapped from out
wrapper children (wrapper style mapping
only) appear in the same order as the corresponding wrapper children
appear in the wrapper.
Holder classes are used to support out
and in/out
parameters in
mapped method signatures. They provide a mutable wrapper for otherwise
immutable object references. Jakarta XML Web Services defines a generic holder class
(jakarta.xml.ws.Holder<T>
) that can be used for any Java class.
Parameters whose XML data type would normally be mapped to a Java
primitive type (e.g., xsd:int
to int
) are instead mapped to a
Holder
whose type parameter is bound to the Java wrapper class
corresponding to the primitive type. E.g., an out
or in/out
parameter whose XML data type would normally be mapped to a Java int
is instead mapped to Holder<java.lang.Integer>
.
◊ Conformance (Use of jakarta.xml.ws.Holder
): Implementations MUST map out
and in/out
method
parameters using jakarta.xml.ws.Holder<T>
, with the exception of a out
part that has been mapped to the method’s return type.
In addition to the synchronous mapping of wsdl:operation
described
above, a client side asynchronous mapping is also supported. It is
expected that the asynchronous mapping will be useful in some but not
all cases and therefore generation of the client side asynchronous
methods should be optional at the users discretion.
◊ Conformance (Asynchronous mapping required): An implementation MUST support the asynchronous mapping.
◊ Conformance (Asynchronous mapping option): An implementation MUST support use of the
jaxws:enableAsyncMapping
binding declaration defined in
Section 8.7.3, “PortType Operation” to enable and disable the asynchronous
mapping.
The following standard interfaces are used in the asynchronous operation mapping:
jakarta.xml.ws.Response
A generic interface that is used to group the results of a method
invocation with the response context. Response
extends Future<T>
to provide asynchronous result polling capabilities.
jakarta.xml.ws.AsyncHandler
A generic interface that clients implement to receive results in an asynchronous callback.
A polling method returns a typed Response<
ResponseBean>
that may
be polled using methods inherited from Future<T>
to determine when
the operation has completed and to retrieve the results. See below for
further details on ResponseBean.
A callback method takes an additional final parameter that is an
instance of a typed AsyncHandler<
ResponseBean>
and returns a
wildcard Future<?>
that may be polled to determine when the
operation has completed. The object returned from Future<?>.get()
has no standard type. Client code should not attempt to cast the
object to any particular type as this will result in non-portable
behavior.
◊ Conformance (Asynchronous method naming): In the absence of customizations, the name
of the polling and callback methods MUST be the value of the name
attribute of the wsdl:operation
suffixed with "Async" mapped according
to the rules described in Section 2.8, “XML Names” and Section 2.8.1, “Name Collisions”.
◊ Conformance (Asynchronous parameter naming): The name of the method parameter for the callback handler MUST be "asyncHandler". Parameter name collisions require user intervention to correct, see Section 2.8.1, “Name Collisions”.
An application MAY customize this mapping using the jaxws:method
binding declaration defined in Section 8.7.3, “PortType Operation”.
◊ Conformance (Failed method invocation): If there is any error prior to invocation of
the operation, an implementation MUST throw a
WebServiceException
[1].
The asynchronous mapping supports both wrapper and non-wrapper mapping
styles, but differs in how it maps out
and in/out
parts or wrapper
children:
The part or wrapper child is mapped to a method parameter as described in Section 2.3.1, “Message and Part”.
The part or wrapper child is mapped to a property of the response bean (see below).
The part or wrapper child is mapped to a method parameter (no holder class) and to a property of the response bean.
A response bean is a mapping of an operation’s output message, it
contains properties for each out
and in/out
message part or wrapper
child.
◊ Conformance (Response bean naming): In the absence of customizations, the name of a
response bean MUST be the value of the name
attribute of the
wsdl:operation
suffixed with "Response" mapped according to the rules
described in Section 2.8, “XML Names” and Section 2.8.1, “Name Collisions”.
A response bean is mapped from a global element declaration following the rules described in Section 2.4, “Types”. The global element declaration is formed as follows (in order of preference):
If the operation’s output message contains a single part and that part refers to a global element declaration then use the referenced global element.
Synthesize a global element declaration of a complex type defined
using the xsd:sequence
compositor. Each output message part is mapped
to a child of the synthesized element as follows:
Each global element referred to by an output part is added as a child of the sequence.
Each part that refers to a type is added as a child of the sequence
by creating an element in no namespace whose localname is the value of
the name
attribute of the wsdl:part
element and whose type is the
value of the type
attribute of the wsdl:part
element
If the resulting response bean has only a single property then the bean
wrapper should be discarded in method signatures. In this case, if the
property is a Java primitive type then it is boxed using the Java
wrapper type (e.g. int
to Integer
) to enable its use with
Response
.
Mapping of WSDL faults to service specific exceptions is identical for
both asynchronous and synchronous cases, Section 2.5, “Fault”
describes the mapping. However, mapped asynchronous methods do not throw
service specific exceptions directly. Instead a
java.util.concurrent.ExecutionException
is thrown when a client
attempts to retrieve the results of an asynchronous method invocation
via the Response.get
method.
◊ Conformance (Asynchronous fault reporting): A WSDL fault that occurs during execution
of an asynchronous method invocation MUST be mapped to a
java.util.concurrent.ExecutionException
thrown when the client calls
Response.get
.
Response
is a static generic interface whose get
method cannot throw
service specific exceptions. Instead of throwing a service specific
exception, a Response
instance throws an ExecutionException
whose
cause is set to an instance of the service specific exception mapped
from the corresponding WSDL fault.
◊ Conformance (Asychronous fault cause): An ExecutionException
that is thrown by the
get
method of Response
as a result of a WSDL fault MUST have as its
cause the service specific exception mapped from the WSDL fault, if
there is one, otherwise the ProtocolException
mapped from the WSDL
fault (see Section 6.4, “Exceptions”).
Figure 5, “Asynchronous operation mapping” shows an example of the asynchronous operation
mapping. Note that the mapping uses Float
instead of a response bean
wrapper (GetPriceResponse
) since the synthesized global element
declaration for the operations output message (lines 17–24) maps to a
response bean that contains only a single property.
<!-- WSDL extract --> <message name="getPrice"> <part name="ticker" type="xsd:string"/> </message> <message name="getPriceResponse"> <part name="price" type="xsd:float"/> </message> <portType name="StockQuote"> <operation name="getPrice"> <input message="tns:getPrice"/> <output message="tns:getPriceResponse"/> </operation> </portType> <!-- Synthesized response bean element --> <xsd:element name="getPriceResponse"> <xsd:complexType> <xsd:sequence> <xsd:element name="price" type="xsd:float"/> </xsd:sequence> </xsd:complexType> </xsd:element> // synchronous mapping @WebService public interface StockQuote { float getPrice(String ticker); // asynchronous mapping @WebService public interface StockQuote { float getPrice(String ticker); Response<Float> getPriceAsync(String ticker); Future<?> getPriceAsync(String ticker, AsyncHandler<Float>);Service service = ...; StockQuote quoteService = (StockQuote) service.getPort(portName); Response<Float> response = quoteService.getPriceAsync(ticker); while (!response.isDone()) { // do something while we wait Float quote = response.get();Mapping of XML Schema types to Java is described by the Jakarta XML Binding specification[39]. The contents of a
wsdl:types
section is passed to Jakarta XML Binding along with any additional type or element declarations (e.g., see Section 2.3.4, “Asynchrony”) required to map other WSDL constructs to Java. E.g., Section 2.3.4, “Asynchrony” defines an algorithm for synthesizing additional global element declarations to provide a mapping from WSDL operations to asynchronous Java method signatures.Jakarta XML Binding supports mapping XML types to either Java interfaces or classes. By default Jakarta XML Web Services uses the class based mapping of Jakarta XML Binding but also allows use of the interface based mapping.
◊ Conformance (Jakarta XML Binding class mapping): In the absence of user customizations, an implementation MUST use the Jakarta XML Binding class based mapping with
generateValueClass
set totrue
andgenerateElementClass
set tofalse
when mapping WSDL types to Java.◊ Conformance (Jakarta XML Binding customization use): An implementation MUST support use of Jakarta XML Binding customizations during mapping as detailed in Section 8.5, “Using Jakarta XML Binding Binding Declarations”.
◊ Conformance (Jakarta XML Binding customization clash): To avoid clashes, if a user customizes the mapping, an implementation MUST NOT add the default class based mapping customizations.
In addition, for ease of use, Jakarta XML Web Services strips any
JAXBElement<T>
wrapper off the type of a method parameter if the normal Jakarta XML Binding mapping would result in one[2]. E.g. a parameter that Jakarta XML Binding would map toJAXBElement<Integer>
is instead be mapped toInteger
.Jakarta XML Binding provides support for the SOAP MTOM[30] /XOP[31] mechanism for optimizing transmission of binary data types. Jakarta XML Web Services provides the MIME processing required to enable Jakarta XML Binding to serialize and deserialize MIME based MTOM/XOP packages. The contract between Jakarta XML Binding and an MTOM/XOP package processor is defined by the
jakarta.xml.bind.AttachmentMarshaller
andjakarta.xml.bind.AttachmentUnmarshaller
classes. A Jakarta XML Web Services implementation can plug into it by registering its ownAttachmentMarshaller
andAttachmentUnmarshaller
at runtime using thesetAttachmentUnmarshaller
method ofjakarta.xml.bind.Unmarshaller
(resp. thesetAttachmentMarshaller
method ofjakarta.xml.bind.Marshaller
).2.4.1. W3CEndpointReference
Jakarta XML Binding by default does not map
wsa:EndpointReference
to thejakarta.xml.ws.wsaddressing.W3CEndpointReference
class. However, for Jakarta XML Web Services developers to fully utilize the use of awsa:EndpointReference
, Jakarta XML Web Services implementations MUST map thewsa:EndpointReference
and its subtypes tojavax.ws.xml.ws.W3CEndpointReference
by default. Jakarta XML Binding provides a standard customization that can be used to cause this mapping. Implementations may provide a way to map these types differently.◊ Conformance (
jakarta.xml.ws.wsaddressing.W3CEndpointReference
): Any schema element of the typewsa:EndpointReference
or its subtypes MUST be mapped tojakarta.xml.ws.wsaddressing.W3CEndpointReference
by default.◊ Conformance (
jakarta.xml.ws.WebFault
required): A mapped exception MUST be annotated with ajakarta.xml.ws.WebFault
annotation.◊ Conformance (Exception naming): In the absence of customizations, the name of a mapped exception MUST be the value of the
name
attribute of thewsdl:message
referred to by thewsdl:fault
element mapped according to the rules in Section 2.8, “XML Names” and Section 2.8.1, “Name Collisions”.An application MAY customize this mapping using the
jaxws:class
binding declaration defined in Section 8.7.4, “PortType Fault Message”.Multiple operations within the same service can define equivalent faults. Faults defined within the same service are equivalent if the values of their
message
attributes are equal.◊ Conformance (Fault equivalence): An implementation MUST map equivalent faults within a service to a single Java exception class.
A
wsdl:fault
element refers to awsdl:message
that contains a single part. The global element declaration[3] referred to by that part is mapped to a Java bean, henceforth called a fault bean, using the mapping described in Section 2.4, “Types”. An implementation generates a wrapper exception class that extendsjava.lang.Exception
and contains the following methods:
String message,
FaultBean faultInfo
)A constructor where WrapperException is replaced with the name of the generated wrapper exception and FaultBean is replaced by the name of the generated fault bean.
String message,
FaultBean faultInfo, Throwable cause
)A constructor where WrapperException is replaced with the name of
the generated wrapper exception and FaultBean is replaced by the
name of the generated fault bean. The last argument, cause
, may be
used to convey protocol specific fault information, see
Section 6.4.1, “Protocol Specific Exception Handling”.
getFaultInfo()
Getter to obtain the fault information, where FaultBean is replaced by the name of the generated fault bean.
The WrapperException class is annotated using the WebFault
annotation (see Section 7.2, “jakarta.xml.ws.WebFault”) to capture the local and namespace
name of the global element mapped to the fault bean.
Two wsdl:fault
child elements of the same wsdl:operation
that
indirectly refer to the same global element declaration are considered
to be equivalent since there is no interoperable way of differentiating
between their serialized forms.
◊ Conformance (Fault equivalence): At runtime an implementation MAY map a serialized fault into any equivalent Java exception.
Figure 6, “Fault mapping” shows an example of the WSDL fault mapping described above.
<!-- WSDL extract --> <types> <xsd:schema targetNamespace="..."> <xsd:element name="faultDetail"> <xsd:complexType> <xsd:sequence> <xsd:element name="majorCode" type="xsd:int"/> <xsd:element name="minorCode" type="xsd:int"/> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:schema> </types> <message name="operationException"> <part name="faultDetail" element="tns:faultDetail"/> </message> <portType name="StockQuoteUpdater"> <operation name="setLastTradePrice"> <input .../> <output .../> <fault name="operationException" message="tns:operationException"/> </operation> </portType> // fault mapping @WebFault(name="faultDetail", targetNamespace="...") class OperationException extends Exception { OperationException(String message, FaultDetail faultInfo) {...} OperationException(String message, FaultDetail faultInfo, Throwable cause) {...} FaultDetail getFaultInfo() {...}The mapping from WSDL 1.1 to Java is based on the abstract description of a
wsdl:portType
and its associated operations. However, the binding of a port type to a protocol can introduce changes in the mapping – this section describes those changes in the general case and specifically for the mandatory WSDL 1.1 protocol bindings.◊ Conformance (Required WSDL extensions): An implementation MUST support mapping of the WSDL 1.1 specified extension elements for the WSDL SOAP and MIME bindings.
2.6.1. General Considerations
R2209 in WS-I Simple SOAP Binding Profile 1.1[32] recommends that all parts of a message be bound but does not require it.
◊ Conformance (Unbound message parts): To preserve the protocol independence of mapped operations, an implementation MUST NOT ignore unbound message parts when mapping from WSDL 1.1 to Java. Instead an implementation MUST generate binding code that ignores
in
andin/out
parameters mapped from unbound parts and that presentsout
parameters mapped from unbound parts asnull
.2.6.2. SOAP Binding
This section describes changes to the WSDL 1.1 to Java mapping that may result from use of certain SOAP binding extensions.
2.6.2.1. Header Binding Extension
A
soap:header
element may be used to bind a part from a message to a SOAP header. As clarified by R2208 in WS-I Basic Profile 1.1[20], the part may belong to either the message bound by thesoap:body
or to a different message:If the part belongs to the message bound by the
soap:body
then it is mapped to a method parameter as described in Section 2.3, “Operation”. Such a part is always mapped using the non-wrapper style.If the part belongs to a different message than that bound by the
soap:body
then it may optionally be mapped to an additional method parameter. When mapped to a parameter, the part is treated as an additional unlisted part for the purposes of the mapping described in Section 2.3, “Operation”. This additional part does not affect eligibility for wrapper style mapping of the message bound by thesoap:body
(see Section 2.3.1, “Message and Part”); the additional part is always mapped using the non-wrapper style.Note that the order of headers in a SOAP message is independent of the order of
soap:header
elements in the WSDL binding – see R2751 in WS-I Basic Profile 1.0[8]. This causes problems when two or more headers with the same qualified name are present in a message and one or more of those headers are bound to a method parameter since it is not possible to determine which header maps to which parameter.◊ Conformance (Duplicate headers in binding): When mapping, an implemention MUST report an error if the binding of an operation includes two or more
soap:header
elements that would result in SOAP headers with the same qualified name.◊ Conformance (Duplicate headers in message): An implementation MUST generate a runtime error if, during unmarshalling, there is more than one instance of a header whose qualified name is mapped to a method parameter.
2.6.3. MIME Binding
The presence of a
mime:multipartRelated
binding extension element as a child of awsdl:input
orwsdl:output
element in awsdl:binding
indicates that the corresponding messages may be serialized as MIME packages. The WS-I Attachments Profile[33] describes two separate attachment mechanisms, both based on use of the WSDL 1.1 MIME binding[5]:
wsiap:swaRef
A schema type that may be used in the abstract message description to indicate a reference to an attachment.
mime:content
A binding construct that may be used to bind a message part to an attachment.
Jakarta XML Binding[39] describes the mapping from the WS-I
defined wsiap:swaref
schema type to Java and, since Jakarta XML Web Services inherits
this capability, it is not discussed further here. Use of the
mime:content
construct is outside the scope of Jakarta XML Binding mapping and the
following subsection describes changes to the WSDL 1.1 to Java mapping
that results from its use.
mime:content
Message parts are mapped to method parameters as described in
Section 2.3, “Operation” regardless of whether the part is bound to the SOAP
message or to an attachment. Jakarta XML Binding rules are used to determine the Java
type of message parts based on the XML schema type referenced by the
wsdl:part
. However, when a message part is bound to a MIME part (using
the mime:content
element of the WSDL MIME binding) additional
information is available that provides the MIME type of the data and
this can optionally be used to narrow the default Jakarta XML Binding mapping.
This use of additional metadata in mime:content
elements is disabled
by default for WSDL to Java mapping, but can be enabled using
jaxws:enableMIMEContent
customization (Section 8.7.5, “Binding”).
◊ Conformance (Use of MIME type information): An implementation MUST support using the
jaxws:enableMIMEContent
binding declaration defined in
Section 8.7.5, “Binding” to enable or disable the use of the additional
metadata in mime:content
elements when mapping from WSDL to Java.
Jakarta XML Binding defines a mapping between MIME types and Java types. When a part is
bound using one or more mime:content
elements[4] and use of the additional metadata is enabled then the
Jakarta XML Binding mapping is customized to use the most specific type allowed by the
set of MIME types described for the part in the binding. The case where
the parameter mode is INOUT
and is bound to different mime bindings in
the input and output messages using the mime:content
element MUST also
be treated in the same way as described above. Please refer to appendix
H in the Jakarta XML Binding specification [39] for details
of the type mapping.
The part belongs to the message bound by the soap:body
then it is
mapped to a method parameter as described in Section 2.3, “Operation”. Such
a part is always mapped using the non-wrapper style.
Parts bound to MIME using the mime:content
WSDL extension are mapped
as described in Section 2.3, “Operation”. These parts are mapped using the
non-wrapper style.
Figure 7, “Use of mime:content
metadata” shows an example WSDL and two mapped interfaces:
one without using the mime:content
metadata, the other using the
additional metadata to narrow the binding. Note that in the latter the
type of the claimPhoto
method parameter is Image
rather than the
default byte[]
.
mime:content
metadata<!-- WSDL extract --> <wsdl:message name="ClaimIn"> <wsdl:part name="body" element="types:ClaimDetail"/> <wsdl:part name="ClaimPhoto" type="xsd:base64Binary"/> </wsdl:message> <wsdl:portType name="ClaimPortType"> <wsdl:operation name="SendClaim"> <wsdl:input message="tns:ClaimIn"/> </wsdl:operation> </wsdl:portType> <wsdl:binding name="ClaimBinding" type="tns:ClaimPortType"> <soapbind:binding style="document" transport="..."/> <wsdl:operation name="SendClaim"> <soapbind:operation soapAction="..."/> <wsdl:input> <mime:multipartRelated> <mime:part> <soapbind:body parts="body" use="literal"/> </mime:part> <mime:part> <mime:content part="ClaimPhoto" type="image/jpeg"/> <mime:content part="ClaimPhoto" type="image/gif"/> </mime:part> </mime:multipartRelated> </wsdl:input> </wsdl:operation> </wsdl:binding> // Mapped Java interface without mime:content metadata @WebService public interface ClaimPortType { public String sendClaim(ClaimDetail detail, byte claimPhoto[]); // Mapped Java interface using mime:content metadata @WebService public interface ClaimPortType { public String sendClaim(ClaimDetail detail, Image claimPhoto);◊ Conformance (MIME type mismatch): On receipt of a message where the MIME type of a part does not match that described in the WSDL an implementation SHOULD throw a
WebServiceException
.◊ Conformance (MIME part identification): An implementation MUST use the algorithm defined in the WS-I Attachments Profile[33] when generating the MIME
Content-ID
header field value for a part bound usingmime:content
.A
wsdl:service
is a collection of relatedwsdl:port
elements. Awsdl:port
element describes a port type bound to a particular protocol (awsdl:binding
) that is available at particular endpoint address. On the client side, awsdl:service
element is mapped to a generated service class that extendsjakarta.xml.ws.Service
(see Section 4.1, “jakarta.xml.ws.Service” for more information on theService
class).◊ Conformance (
Service
superclass required): A generated service class MUST extend thejakarta.xml.ws.Service
class.◊ Conformance (
Service
class naming): In the absence of customization, the name of a generated service class MUST be the value of thename
attribute of thewsdl:service
element mapped according to the rules described in Section 2.8, “XML Names” and Section 2.8.1, “Name Collisions”.An application MAY customize the name of the generated service class using the
jaxws:class
binding declaration defined in Section 8.7.7, “Service”.In order to allow an implementation to identify the Web service that a generated service class corresponds to, the latter is required to be annotated with
jakarta.xml.ws.WebServiceClient
annotation. The annotation contains all the information necessary to locate a WSDL document and uniquely identify awsdl:service
inside it.◊ Conformance (
jakarta.xml.ws.WebServiceClient
required): A generated service class MUST be annotated with ajakarta.xml.ws.WebServiceClient
annotation.Jakarta XML Web Services mandates that six constructors be present on every generated service class.
◊ Conformance (Generated service default constructor): A generated service class MUST have a default (i.e. zero-argument) public constructor. This constructor MUST call the
jakarta.xml.ws.Service(URL, QName)
protected constructor, passing as arguments the WSDL location and the service name. The values of the actual arguments for this call MUST be equal (in thejava.lang.Object.equals
sense) to the values specified in the mandatoryWebServiceClient
annotation on the generated service class itself.◊ Conformance (Generated service
(WebServiceFeature …)
constructor): A generated service class MUST have a public constructor that takes one argument, the web service features (a varargsjakarta.xml.ws.WebServiceFeature
). This constructor MUST call thejakarta.xml.ws.Service(URL, QName, WebServiceFeature …)
protected constructor, passing as arguments the WSDL location, the service name and the web service features. The values of the actual arguments WSDL location, service name for this call are as specified in the mandatoryWebServiceClient
annotation on the generated service class itself, and the value of the web service features argument is with which it was invoked.◊ Conformance (Generated service
(URL)
constructor): The implementation class MUST have a public constructor that takes one argument, the WSDL location (ajava.net.URL
). This constructor MUST call thejakarta.xml.ws.Service(URL, QName)
protected constructor. The values of the actual arguments WSDL location is with which it was invoked and the service name is as specified in the mandatoryWebServiceClient
annotation on the generated service class itself.◊ Conformance (Generated service
(URL, WebServiceFeature…)
constructor): The implementation class MUST have a public constructor that takes two arguments, the WSDL location (ajava.net.URL
) and the web service features (a varargsjakarta.xml.ws.WebServiceFeature
). This constructor MUST call thejakarta.xml.ws.Service(URL, QName, WebServiceFeature …)
protected constructor, passing as arguments the WSDL location, the service name and the web service features. The values of the actual arguments WSDL location and the web services features are with which it was invoked and the service name is as specified in the mandatoryWebServiceClient
annotation on the generated service class itself.◊ Conformance (Generated service
(URL, QName)
constructor): The implementation class MUST have a public constructor that takes two arguments, the WSDL location (ajava.net.URL
) and the service name (ajavax.xml.namespace.QName
). This constructor MUST call thejakarta.xml.ws.Service(URL, QName)
protected constructor, passing as arguments the WSDL location and the service name values with which it was invoked.◊ Conformance (Generated service
(URL, QName,WebServiceFeature …)
constructor): The implementation class MUST have a public constructor that takes three arguments, the WSDL location (ajava.net.URL
), the service name (ajavax.xml.namespace.QName
) and the web service features (a varargsjakarta.xml.ws.WebServiceFeature
). This constructor MUST call thejakarta.xml.ws.Service(URL, QName, WebServiceFeature …)
protected constructor, passing as arguments the WSDL location, the service name and the web service feature values with which it was invoked.For each port in the service, the generated client side service class contains the following methods, two for each port defined by the WSDL service and whose binding is supported by the Jakarta XML Web Services implementation:
get
PortName()
One required method that takes no parameters and returns a proxy that
implements the mapped service endpoint interface. The method generated
delegates to the Service.getPort(…)
method passing it the port
name. The value of the port name MUST be equal to the value specified
in the mandatory WebEndpoint
annotation on the method itself.
get
PortName(WebServiceFeature… features)
One required method that takes a variable-length array of
jakarta.xml.ws.WebServiceFeature
and returns a proxy that implements
the mapped service endpoint interface. The method generated delegates
to the
Service.getPort(QName portName, Class<T> SEI, WebServiceFeature… features)
method passing it the port name, the SEI and the features. The value
of the port name MUST be equal to the value specified in the mandatory
WebEndpoint
annotation on the method itself.
◊ Conformance (Failed getPort Method): A generated get
PortName method MUST throw
jakarta.xml.ws.WebServiceException
on failure.
The value of PortName in the above is derived as follows: the value of
the name
attribute of the wsdl:port
element is first mapped to a
Java identifier according to the rules described in Section 2.8, “XML Names”,
this Java identifier is then treated as a JavaBean property for the
purposes of deriving the get
PortName method name.
An application MAY customize the name of the generated methods for a
port using the jaxws:method
binding declaration defined in
Section 8.7.8, “Port”.
In order to enable an implementation to determine the wsdl:port
that a
port getter method corresponds to, the latter is required to be
annotated with a jakarta.xml.ws.WebEndpoint
annotation.
◊ Conformance (jakarta.xml.ws.WebEndpoint
required):
The get
PortName methods of generated service interface
MUST be annotated with a jakarta.xml.ws.WebEndpoint
annotation.
The following shows a WSDL extract and the resulting generated service class.
<!-- WSDL extract --> <wsdl:service name="StockQuoteService"> <wsdl:port name="StockQuoteHTTPPort" binding="StockQuoteHTTPBinding"/> <wsdl:port name="StockQuoteSMTPPort" binding="StockQuoteSMTPBinding"/> </wsdl:service> // Generated Service Class @WebServiceClient(name="StockQuoteService", targetNamespace="http://example.com/stocks", wsdlLocation="http://example.com/stocks.wsdl") public class StockQuoteService extends jakarta.xml.ws.Service { public StockQuoteService() { super(new URL("http://example.com/stocks.wsdl"), new QName("http://example.com/stocks", "StockQuoteService")); public StockQuoteService(WebServiceFeature ... featurs) { super(new URL("http://example.com/stocks.wsdl"), new QName("http://example.com/stocks", "StockQuoteService"), features); public StockQuoteService(URL wsdlLocation) { super(wsdlLocation, new QName("http://example.com/stocks", "StockQuoteService")); public StockQuoteService(URL wsdlLocation, WebServiceFeature ... features) { super(wsdlLocation, new QName("http://example.com/stocks", "StockQuoteService"), features); public StockQuoteService(URL wsdlLocation, QName serviceName) { super(wsdlLocation, serviceName); public StockQuoteService(URL wsdlLocation, QName serviceName, WebServiceFeature ... features) { super(wsdlLocation, serviceName, features); @WebEndpoint(name="StockQuoteHTTPPort") public StockQuoteProvider getStockQuoteHTTPPort() { return (StockQuoteProvider) super.getPort( new QName("http://example.com/stocks","StockQuoteHTTPPort"), StockQuoteProvider.class); @WebEndpoint(name="StockQuoteHTTPPort") public StockQuoteProvider getStockQuoteHTTPPort(WebServiceFeature... features) { return (StockQuoteProvider) super.getPort( new QName("http://example.com/stocks","StockQuoteHTTPPort"), StockQuoteProvider.class, features); @WebEndpoint(name="StockQuoteSMTPPort") public StockQuoteProvider getStockQuoteSMTPPort() { return (StockQuoteProvider) super.getPort( new QName("http://example.com/stocks","StockQuoteSMTPPort"), StockQuoteProvider.class); @WebEndpoint(name="StockQuoteSMTPPort") public StockQuoteProvider getStockQuoteSMTPPort(WebServiceFeature... features) { return (StockQuoteProvider) super.getPort( new QName("http://example.com/stocks","StockQuoteSMTPPort"), StockQuoteProvider.class, features);Appendix D of Jakarta XML Binding[39] defines a mapping from XML names to Java identifiers. Jakarta XML Web Services uses this mapping to convert WSDL identifiers to Java identifiers with the following modifications and additions:
When mapping wsdl:operation
names to Java method identifiers, the
get
or set
prefix is not added. Instead the first word in the
word-list has its first character converted to lower case.
When mapping wsdl:part
names or wrapper child local names to Java
method parameter identifiers, the first word in the word-list has its
first character converted to lower case. Clashes with Java language
reserved words are reported as errors and require use of appropriate
customizations to fix the clash.
WSDL name scoping rules may result in name collisions when mapping from WSDL 1.1 to Java. E.g., a port type and a service are both mapped to Java classes but WSDL allows both to be given the same name. This section defines rules for resolving such name collisions.
The order of precedence for name collision resolution is as follows (highest to lowest);
If a name collision occurs between two identifiers with the same precedence, this is reported as an error and requires developer intervention to correct. The error may be corrected either by modifying the source WSDL or by specifying a customized name mapping.
If a name collision occurs between a mapped Java method and a method in
jakarta.xml.ws.BindingProvider
(an interface that proxies are required
to implement, see Section 4.2, “jakarta.xml.ws.BindingProvider”), the prefix “_” is added to
the mapped method.
This chapter describes the mapping from Java to WSDL 1.1. This mapping is used when generating web service endpoints from existing Java interfaces.
◊ Conformance (WSDL 1.1 support): Implementations MUST support mapping Java to WSDL 1.1.
The following sections describe the default mapping from each Java construct to the equivalent WSDL 1.1 artifact.
An application MAY customize the mapping using the annotations defined in Chapter 7, Annotations.
◊ Conformance (Standard annotations): An implementation MUST support the use of annotations defined in Chapter 7, Annotations to customize the Java to WSDL 1.1 mapping.
◊ Conformance (Java identifier mapping): In the absence of annotations described in this specification, Java identifiers MUST be mapped to XML names using the algorithm defined in appendix B of SOAP 1.2 Part 2[4].
WS-I Basic Profile 1.0[8] (see
R2304) requires operations within a wsdl:portType
to be uniquely named
– support for customization of the operation name allows this
requirement to be met when a Java SEI contains overloaded methods.
◊ Conformance (Method name disambiguation): An implementation
MUST support the use of the jakarta.jws.WebMethod
annotation to
disambiguate overloaded Java method names when mapped to WSDL.
A Java package is mapped to a wsdl:definitions
element and an
associated targetNamespace
attribute. The wsdl:definitions
element
acts as a container for other WSDL elements that together form the WSDL
description of the constructs in the corresponding Java package.
A default value for the targetNamespace
attribute is derived from the
package name as follows:
E.g., the Java package "com.example.ws" would be mapped to the target namespace "http://ws.example.com/".
◊ Conformance (Package name mapping):
The jakarta.jws.WebService
annotation (see
Section 7.11.1, “jakarta.jws.WebService”) MAY be used to specify the target namespace to
use for a Web service and MUST be used for classes or interfaces in no
package. In the absence of a jakarta.jws.WebService
annotation the Java
package name MUST be mapped to the value of the wsdl:definitions
element’s targetNamespace
attribute using the algorithm defined above.
No specific authoring style is required for the mapped WSDL document; implementations are free to generate WSDL that uses the WSDL and XML Schema import directives.
◊ Conformance (WSDL and XML Schema import directives): Generated WSDL MUST comply with the WS-I Basic Profile 1.0[8] restrictions (See R2001, R2002, and R2003) on usage of WSDL and XML Schema import directives.
A Java class (not an interface) annotated with a jakarta.jws.WebService
annotation can be used to define a Web service.
In order to allow for a separation between Web service interface and
implementation, if the WebService
annotation on the class under
consideration has a endpointInterface
element, then the interface
referred by this element is for all purposes the SEI associated with the
class.
Otherwise, the class implicitly defines a service endpoint interface (SEI) which comprises all of the public non-static or non-final methods that satisfy one of the following conditions:
They are annotated with the jakarta.jws.WebMethod
annotation with
the exclude
element set to false
or missing (since false
is the
default for this annotation element).
They are not annotated with the jakarta.jws.WebMethod
annotation but
their declaring class has a jakarta.jws.WebService
annotation.
For mapping purposes, this implicit SEI and its methods are considered to be annotated with the same Web service-related annotations that the original class and its methods have.
In pratice, in order to exclude a public method of a class annotated
with WebService
and not directly specifying a endpointInterface
from
the implicitly defined SEI, it is necessary to annotate the method with
a WebMethod
annotation with the exclude
element set to true
.
◊ Conformance (Class mapping): An implementation MUST support the mapping of
jakarta.jws.WebService
annotated classes to implicit service endpoint
interfaces.
For mapping purposes, this class must be a top level class or a static
inner class. As defined by Jakarta XML Web Services Metadata, a class annotated with
jakarta.jws.WebService
must have a default public constructor.
A Java service endpoint interface (SEI) is mapped to a wsdl:portType
element. The wsdl:portType
element acts as a container for other WSDL
elements that together form the WSDL description of the methods in the
corresponding Java SEI. An SEI is a Java interface that meets all of the
following criteria:
It MUST carry a jakarta.jws.WebService
annotation (see
Section 7.11.1, “jakarta.jws.WebService”).
Any of its methods MAY carry a jakarta.jws.WebMethod
annotation (see
Section 7.11.2, “jakarta.jws.WebMethod”).
jakarta.jws.WebMethod
if used, MUST NOT have the exclude
element set
to true
.
All method parameters and return types are compatible with the Jakarta XML Binding[39] Java to XML Schema mapping definition
◊ Conformance (portType naming): The jakarta.jws.WebService
annotation (see section
Section 7.11.1, “jakarta.jws.WebService”) MAY be used to customize the name
and
targetNamespace
attributes of the wsdl:portType
element. If not
customized, the value of the name
attribute of the wsdl:portType
element MUST be the name of the SEI not including the package name and
the target namespace is computed as defined above in section
Section 3.2, “Package”.
Figure 8, “Java interface to WSDL portType mapping using document style” shows an example of a Java SEI and the
corresponding wsdl:portType
.
Multiple SEIs in the same package may result in name clashes as the result of sections Section 3.6.2.1, “Document Wrapped” and Section 3.7, “Service Specific Exception” of the specification. Customizations may be used to resolve these clashes. See sections Section 7.2, “jakarta.xml.ws.WebFault”, Section 7.3, “jakarta.xml.ws.RequestWrapper” and Section 7.4, “jakarta.xml.ws.ResponseWrapper” for more information on these customizations.
WSDL 1.1 does not define a standard representation for the inheritance
of wsdl:portType
elements. When mapping an SEI that inherits from
another interface, the SEI is treated as if all methods of the inherited
interface were defined within the SEI.
◊ Conformance (Inheritance flattening): A mapped wsdl:portType
element MUST contain
WSDL definitions for all the methods of the corresponding Java SEI
including all inherited methods.
◊ Conformance (Inherited interface mapping): An implementation MAY map inherited
interfaces to additional wsdl:portType
elements within the
wsdl:definitions
element.
Each public method in a Java SEI is mapped to a wsdl:operation
element
in the corresponding wsdl:portType
plus one or more wsdl:message
elements.
◊ Conformance (Operation naming): In the absence of customizations, the value of the
name
attribute of the wsdl:operation
element MUST be the name of the
Java method. The jakarta.jws.WebMethod
(see Section 7.11.2, “jakarta.jws.WebMethod”) annotation
MAY be used to customize the value of the name
attribute of the
wsdl:operation
element and MUST be used to resolve naming conflicts.
If the exclude
element of the jakarta.jws.WebMethod
is set to true
then the Java method MUST NOT be present in the wsdl as a
wsdl:operation
element.
Methods are either one-way or two-way: one way methods have an input but produce no output, two way methods have an input and produce an output. Section 3.5.1, “One Way Operations” describes one way operations further.
The wsdl:operation
element corresponding to each method has one or
more child elements as follows:
A wsdl:input
element that refers to an associated wsdl:message
element to describe the operation input.
(Two-way methods only) an optional wsdl:output
element that refers to
a wsdl:message
to describe the operation output.
(Two-way methods only) zero or more wsdl:fault
child elements, one for
each exception thrown by the method. The wsdl:fault
child elements
refer to associated wsdl:message
elements to describe each fault. See
Section 3.7, “Service Specific Exception” for further details on exception mapping.
wsdl:input
, wsdl:output
(if any), and wsdl:fault
(if any) child
elements must have wsam:Action
attribute to describe WS-Addressing
Action property. The value of the wsam:Action
attribute is computed
using the algorithm in Section 3.5.2, “wsam:Action Computation Algorithm”
The value of a wsdl:message
element’s name
attribute is not
significant but by convention it is normally equal to the corresponding
operation name for input messages and the operation name concatenated
with "Response" for output messages. Naming of fault messages is described
in Section 3.7, “Service Specific Exception”.
◊ Conformance (Generating wsam:Action
):
wsdl:operation
’s child elements
wsdl:input
, wsdl:output
, and wsdl:fault
MUST have the
wsam:Action
attribute. wsam:Action
attribute MUST be computed using
the algorithm that is specified in Section 3.5.2, “wsam:Action Computation Algorithm”
Each wsdl:message
element has one of the following[5]:
A single wsdl:part
child element that refers, via an element
attribute, to a global element declaration in the wsdl:types
section.
Zero or more wsdl:part
child elements (one per method parameter and
one for a non-void return value) that refer, via a type
attribute,
to named type declarations in the wsdl:types
section.
Figure 8, “Java interface to WSDL portType mapping using document style” shows an example of mapping a Java interface containing a single method to WSDL 1.1 using document style. Figure 9, “Java interface to WSDL portType mapping using RPC style” shows an example of mapping a Java interface containing a single method to WSDL 1.1 using RPC style.
Section 3.6, “Method Parameters and Return Type” describes the mapping from Java methods and
their parameters to corresponding global element declarations and named
types in the wsdl:types
section.
// Java package com.example; @WebService public interface StockQuoteProvider { float getPrice(String tickerSymbol) throws TickerException; <!-- WSDL extract --> <types> <xsd:schema targetNamespace="..."> <!-- element declarations --> <xsd:element name="getPrice" type="tns:getPriceType"/> <xsd:element name="getPriceResponse" type="tns:getPriceResponseType"/> <xsd:element name="TickerException" type="tns:TickerExceptionType"/> <!-- type definitions --> </xsd:schema> </types> <message name="getPrice"> <part name="getPrice" element="tns:getPrice"/> </message> <message name="getPriceResponse"> <part name="getPriceResponse" element="tns:getPriceResponse"/> </message> <message name="TickerException"> <part name="TickerException" element="tns:TickerException"/> </message> <portType name="StockQuoteProvider"> <operation name="getPrice"> <input message="tns:getPrice" wsam:action="..."/> <output message="tns:getPriceResponse" wsam:action="..."/> <fault message="tns:TickerException" wsam:action="..."/> </operation> </portType>public interface StockQuoteProvider { float getPrice(String tickerSymbol) throws TickerException; <!-- WSDL extract --> <types> <xsd:schema targetNamespace="..."> <!-- element declarations --> <xsd:element name="TickerException" type="tns:TickerExceptionType"/> <!-- type definitions --> </xsd:schema> </types> <message name="getPrice"> <part name="tickerSymbol" type="xsd:string"/> </message> <message name="getPriceResponse"> <part name="return" type="xsd:float"/> </message> <message name="TickerException"> <part name="TickerException" element="tns:TickerException"/> </message> <portType name="StockQuoteProvider"> <operation name="getPrice"> <input message="tns:getPrice"/> <output message="tns:getPriceResponse"/> <fault message="tns:TickerException"/> </operation> </portType>
Only Java methods whose return type is void
, that have no parameters
that implement Holder
and that do not throw any checked exceptions can
be mapped to one-way operations. Not all Java methods that fulfill this
requirement are amenable to become one-way operations and automatic
choice between two-way and one-way mapping is not possible.
◊ Conformance (One-way mapping): Implementations MUST support use of the
jakarta.jws.OneWay
(see Section 7.11.3, “jakarta.jws.OneWay”) annotation to specify which methods
to map to one-way operations. Methods that are not annotated with
jakarta.jws.OneWay
MUST NOT be mapped to one-way operations.
◊ Conformance (One-way mapping errors): Implementations MUST prevent mapping to one-way operations of methods that do not meet the necessary criteria.
All wsdl:operation
’s child elements wsdl:input
, wsdl:output
and
wsdl:fault
must have the wsam:Action
attribute in the the generated
WSDL. The algorithm to compute wsam:Action
from SEI method is as
follows:
A non-default @Action(input=…)
or @WebMethod(action=…)
value
on a SEI method MUST result into wsdl:input[@wsam:Action]
attribute in
the corresponding wsdl:operation
. Also, @Action(input=…)
and
@WebMethod(action=…)
annotation element values MUST be same, if
present.
A non-default @Action(output=…)
value on a SEI method MUST
result into wsdl:output[@wsam:Action
attribute in the corresponding
wsdl:operation
.
A non-default @Action(@FaultAction=…)
value on a SEI method MUST
result into wsdl:fault[@wsam:Action
attribute in the corresponding
wsdl:operation
. The wsdl:fault
element MUST correspond to the
exception specified by className
annotated element value.
If wsdl:input[@wsam:Action]
cannot be mapped from the above steps,
then wsam:Action
is generated using the metadata defaulting algorithm
as if wsdl:input[@name]
is not present in WSDL.
If wsdl:output[@wsam:Action]
cannot be mapped from the above
steps, then wsam:Action
is generated using the metadata defaulting
algorithm as if wsdl:output[@name]
is not present in WSDL.
If wsdl:fault[@wsam:Action]
cannot be mapped from the above steps,
then wsam:Action
is generated using the metadata defaulting algorithm
as if wsdl:fault[@name]
is the corresponding exception class name.
@Action(input="inAction") public float getPrice(String ticker) throws InvalidTickerException; // the mapped wsdl:operation if targetNamespace="http://example.com" and // portType="StockQuoteProvider" <operation name="getPrice"> <input name="foo" message="tns:getPrice" wsam:Action="inAction"/> <output name="bar" message="tns:getPriceResponse" wsam:Action="http://example.com/StockQuoteProvider/getPriceResponse" /> <fault name="FooTickerException" message="tns:InvalidTickerException" wsam:Action="http://example.com/StockQuoteProvider/getPrice/Fault/InvalidTickerException"/> </operation>
A Java method’s parameters and return type are mapped to components of
either the messages or the global element declarations mapped from the
method. Parameters can be mapped to components of the message or global
element declaration for either the operation input message, operation
output message or both. The mapping depends on the parameter
classification.The jakarta.jws.WebParam
annotation’s header
element
MAY be used to map parameters to SOAP headers. Header parameters MUST be
included as soap:header
elements in the operation’s input message. The
jakarta.jws.WebResult
annotation’s header
element MAY be used to map
results to SOAP headers. Header results MUST be included as
soap:header
elements in the operation’s output message.
Since Jakarta XML Web Services uses Jakarta XML Binding for it data binding, Jakarta XML Binding annotations on methods and method parameters MUST be honored. A Jakarta XML Binding annotation on the method is used to specify the binding of a methods return type while an annotation on the parameter specifies the binding of that parameter.
◊ Conformance (use of Jakarta XML Binding annotations):
An implementation MUST honor any Jakarta XML Binding
annotation that exists on an SEI method or parameter to assure that the
proper XML infoset is used when marshalling/
unmarshalling the the return value or parameters of the method. The set
of Jakarta XML Binding annotations that MUST be supported are:
jakarta.xml.bind.annotation.XmlAttachementRef
,
jakarta.xml.bind.annotation.XmlList
, jakarta.xml.bind.XmlMimeType
and
jakarta.xml.bind.annotation.adapters.XmlJavaTypeAdapter
Jakarta XML Binding doesn’t define any namespace by default to types and elements. In the web services, typically these entities that are created for method parameters and return parameters are qualified.
◊ Conformance (Overriding Jakarta XML Binding types empty namespace): Jakarta XML Web Services tools and runtimes MUST override the default empty namespace for Jakarta XML Binding types and elements to SEI’s targetNamespace.
Method parameters and return type are classified as follows:
The value is transmitted by copy from a service client to the SEI but is not returned from the service endpoint to the client.
The value is returned by copy from an SEI to the client but is not transmitted from the client to the service endpoint implementation.
in/out
The value is transmitted by copy from a service client to the SEI and is returned by copy from the SEI to the client.
A methods return type is always out
. For method parameters, holder
classes are used to determine the classification. jakarta.xml.ws.Holder
.
A parameter whose type is a parameterized jakarta.xml.ws.Holder<T>
class
is classified as in/out
or out
, all other parameters are classified
as in
.
◊ Conformance (Parameter classification): The jakarta.jws.WebParam
annotation (see
Section 7.11.4, “jakarta.jws.WebParam”) MAY be used to specify whether a holder parameter is
treated as in/out
or out
. If not specified, the default MUST be
in/out
.
◊ Conformance (Parameter naming): The jakarta.jws.WebParam
annotation (see
Section 7.11.4, “jakarta.jws.WebParam”) MAY be used to specify the name
of the wsdl:part
or
XML Schema element declaration corresponding to a Java parameter. If
both the name
and partName
elements are used in the
jakarta.jws.WebParam
annotation then the partName
MUST be used for the
wsdl:part
name attribute and the name
element from the annotation
will be ignored. If not specified, the default is "argN", where N is
replaced with the zero-based argument index. Thus, for instance, the
first argument of a method will have a default parameter name of "arg0",
the second one "arg1" and so on.
◊ Conformance (Result naming): The jakarta.jws.WebResult
annotation (see Section 7.11.4, “jakarta.jws.WebParam”)
MAY be used to specify the name
of the wsdl:part
or XML Schema
element declaration corresponding to the Java method return type. If
both the name
and partName
elements are used in the
jakarta.jws.WebResult
annotations then the partName
MUST be used for
the wsdl:part
name attribute and the name
elment from the annotation
will be ignored. In the absence of customizations, the default name is
return
.
◊ Conformance (Header mapping of parameters and results): The jakarta.jws.WebParam
annotation’s header
element MAY be used to map parameters to SOAP
headers. Header parameters MUST be included as soap:header
elements in
the operation’s input message. The jakarta.jws.WebResult
annotation’s
header
element MAY be used to map results to SOAP headers. Header
results MUST be included as soap:header
elements in the operation’s
output message.
Jakarta XML Binding defines a mapping from Java classes to XML Schema constructs.
Jakarta XML Web Services uses this mapping to generate XML Schema named type and global
element declarations that are referred to from within the WSDL message
constructs generated for each operation.
Three styles of Java to WSDL mapping are supported: document wrapped, document bare and RPC. The styles differ in what XML Schema constructs are generated for a method. The three styles are described in the following subsections.
The jakarta.jws.SOAPBinding
annotation MAY be used to specify at the
type level which style to use for all methods it contains or on a per
method basis if the style
is document
.
This style is identified by a jakarta.jws.SOAPBinding
annotation with
the following properties: a style
of DOCUMENT
, a use
of LITERAL
and a parameterStyle
of WRAPPED
.
For the purposes of utilizing the Jakarta XML Binding mapping, each method is converted to two Java bean classes: one for the method input (henceforth called the request bean) and one for the method output (henceforth called the response bean). Application’s programming model doesn’t use these bean classes, so the applications need not package these classes. Jakarta XML Web Services implementations may generate these classes dynamically as specified in this section.
◊ Conformance (Dynamically generating wrapper beans): A Jakarta XML Web Services implementation SHOULD not require an application to package request and response bean classes. However, when the bean classes are packaged, they MUST be used.
◊ Conformance (Default wrapper bean names): In the absence of customizations, the wrapper request bean class MUST be named the same as the method and the wrapper response bean class MUST be named the same as the method with a "Response" suffix. The first letter of each bean name is capitalized to follow Java class naming conventions.
◊ Conformance (Default wrapper bean package): In the absence of customizations, the
wrapper beans package MUST be a generated jaxws
subpackage of the SEI
package.
The jakarta.xml.ws.RequestWrapper
and jakarta.xml.ws.ResponseWrapper
annotations (see Section 7.3, “jakarta.xml.ws.RequestWrapper” and Section 7.4, “jakarta.xml.ws.ResponseWrapper”) MAY be used
to customize the name of the generated wrapper bean classes.
◊ Conformance (Wrapper element names): The jakarta.xml.ws.RequestWrapper
and
jakarta.xml.ws.ResponseWrapper
annotations (see Section 7.3, “jakarta.xml.ws.RequestWrapper” and
Section 7.4, “jakarta.xml.ws.ResponseWrapper”) MAY be used to specify the qualified name of the
elements generated for the wrapper beans.
◊ Conformance (Wrapper bean name clash): Generated bean classes must have unique names within a package and MUST NOT clash with other classes in that package. Clashes during generation MUST be reported as an error and require user intervention via name customization to correct. Note that some platforms do not distiguish filenames based on case so comparisons MUST ignore case.
The name of wsdl:part
for the wrapper must be named as "parameters"
for input messages in the generated WSDL. If a SEI method doesn’t have
any header parameters or return type, then the name
of wsdl:part
for
the wrapper must be named as "parameters"
for output messages in the
generated WSDL, otherwise it would be named as "result"
. The
RequestWrapper
and ResponseWrapper
annotations MAY be used to
customize the name
of the wsdl:part
for the wrapper part.
◊ Conformance (Default Wrapper wsdl:part
names):
In the absence of customizations, the
name of the wsdl:part
for the wrapper MUST be named as parameters
for input messages in the generated WSDL. In the absence of
customizations, when there are no header parameters or return type in a
SEI method, the name
of the wsdl:part
for the wrapper MUST be named
as parameters
for output messages. In all other cases, it MUST be
named as result
.
◊ Conformance (Customizing Wrapper wsdl:part
names):
Non-default partName
values of
the RequestWrapper
and ResponseWrapper
annotations, if specified on
a SEI method, MUST be used as wsdl:part
name
for the corresponding
input and output messages in the generated WSDL.
A request bean is generated containing properties for each in
and
in/out
non-header parameter. A response bean is generated containing
properties for the method return value, each out
non-header parameter,
and in/out
non-header parameter. Method return values are represented
by an out
property named "return". The order of the properties in the
request bean is the same as the order of parameters in the method
signature. The order of the properties in the response bean is the
property corresponding to the return value (if present) followed by the
properties for the parameters in the same order as the parameters in the
method signature.
If a SEI’s method parameter or return type is annotated with
@XmlElement
, that annotation is used for the wrapper bean properties.
This can be used to map corresponding XML schema element declaration’s
attributes like minOccurs
, maxOccurs
, and nillable
etc. It is an
error to specify @XmlElement
with a parameter or return type that is
mapped to header part. If both @XmlElement
and
@WebParam
/@WebResult
are present, then it is an error to specify
@XmlElement
’s name
, and namespace
elements different from
@WebParam
/@WebResult
’s name
and targetNamespace
elements
respectively.
◊ Conformance (Wrapper property): If a SEI’s method parameter or return type is
annotated with @XmlElement
, that annotation MUST be used on the
wrapper bean property.
The request and response beans are generated with the appropriate Jakarta XML Binding
customizations to result in a global element declaration for each bean
class when mapped to XML Schema by Jakarta XML Binding. The corresponding global
element declarations MUST NOT have the nillable attribute set to a value
of true. Whereas the element name is derived from the RequestWrapper
or ResponseWrapper
annotations, its type is named according to the
operation name (for the local part) and the target namespace for the
portType that contains the operation (for the namespace name).
Figure 10, “Wrapper mode bean representation of an operation” illustrates this conversion.
float getPrice(@WebParam(name="tickerSymbol") String sym); @XmlRootElement(name="getPrice", targetNamespace="...") @XmlType(name="getPrice", targetNamespace="...") @XmlAccessorType(AccessType.FIELD) public class GetPrice { @XmlElement(name="tickerSymbol", targetNamespace="") public String tickerSymbol; @XmlRootElement(name="getPriceResponse", targetNamespace="...") @XmlType(name="getPriceResponse", targetNamespace="...") @XmlAccessorType(AccessType.FIELD) public class GetPriceResponse { @XmlElement(name="return", targetNamespace="") public float _return;When the Jakarta XML Binding mapping to XML Schema is utilized this results in global element declarations for the mapped request and response beans with child elements for each method parameter according to the parameter classification:
The parameter is mapped to a child element of the global element declaration for the request bean.
The parameter or return value is mapped to a child element of the global element declaration for the response bean. In the case of a parameter, the class of the value of the holder class (see Section 3.6.1, “Parameter and Return Type Classification”) is used for the mapping rather than the holder class itself.
in/out
The parameter is mapped to a child element of the global element declarations for the request and response beans. The class of the value of the holder class (see Section 3.6.1, “Parameter and Return Type Classification”) is used for the mapping rather than the holder class itself.
This style is identified by a jakarta.jws.SOAPBinding
annotation with
the following properties: a style
of DOCUMENT
, a use
of LITERAL
and a parameterStyle
of BARE
.
In order to qualify for use of bare mapping mode a Java method must fulfill all of the following criteria:
If it has a return type other than void
it must have no in/out
or out
non-header parameters.
If it has a return type of void
it must have at most one in/out
or out
non-header parameter.
If present, the type of the input parameter is mapped to a named XML Schema type using the mapping defined by Jakarta XML Binding. If the input parameter is a holder class then the class of the value of the holder is used instead.
If present, the type of the output parameter or return value is mapped to a named XML Schema type using the mapping defined by Jakarta XML Binding. If an output parameter is used then the class of the value of the holder class is used.
A global element declaration is generated for the method input and, in
the absence of a WebParam
annotation, its local name is equal to the
operation name. A global element declaration is generated for the method
output and, in the absence of a WebParam
or WebResult
annotation,
the local name is equal to the operation name suffixed with "Response".
The type of the two elements depends on whether a type was generated for
the corresponding element or not:
The type of the global element is the named type.
The type of the element is an anonymous empty type.
The namespace name of the input and output global elements is the value
of the targetNamespace
attribute of the WSDL definitions
element.
The nillable attribute of the generated global elements MUST have a value of true if and only if the corresponding Java types are reference types.
The global element declarations are used as the values of the
wsdl:part
elements element
attribute, see figure 8, “Java interface to WSDL portType mapping using document style”.
This style is identified by a jakarta.jws.SOAPBinding
annotation with
the following properties: a style
of RPC
, a use
of LITERAL
and a
parameterStyle
of WRAPPED
[6].
The Java types of each in
, out
and in/out
parameter and the return
value are mapped to named XML Schema types using the mapping defined by
Jakarta XML Binding. For out
and in/out
parameters the class of the value of the
holder is used rather than the holder itself.
Each method parameter and the return type is mapped to a message part according to the parameter classification:
The parameter is mapped to a part of the input message.
The parameter or return value is mapped to a part of the output message.
in/out
The parameter is mapped to a part of the input and output message.
The named types are used as the values of the wsdl:part
elements
type
attribute, see figure 9, “Java interface to WSDL portType mapping using RPC style”. The value of the
name
attribute of each wsdl:part
element is the name of the
corresponding method parameter or "return" for the method return value.
Due to the limitations described in section 5.3.1 of the WS-I Basic Profile specification (see [8]), null values cannot be used as method arguments or as the return value from a method which uses the rpc/literal binding.
◊ Conformance (Null Values in rpc/literal):
If a null value is passed as an argument to
a method, or returned from a method, that uses the rpc/literal style,
then an implementation MUST throw a WebServiceException
.
A service specific Java exception is mapped to a wsdl:fault
element, a
wsdl:message
element with a single child wsdl:part
element and an
XML Schema global element declaration. The wsdl:fault
element appears
as a child of the wsdl:operation
element that corresponds to the Java
method that throws the exception and refers to the wsdl:message
element. The wsdl:part
element refers to an XML Schema global element
declaration that describes the fault.
◊ Conformance (Exception naming): In the absence of customizations, the name of the
global element declaration for a mapped exception MUST be the name of
the Java exception. The jakarta.xml.ws.WebFault
annotation MAY be used
to customize the local name and namespace name of the element.
◊ Conformance (wsdl:message
naming):
In the absence of customizations, the name of the
wsdl:message
element MUST be the name of the Java exception.
The jakarta.xml.ws.WebFault
annotation may be used to customize the name
of the wsdl:message
element and also to resolve any conflicts.
◊ Conformance (wsdl:message
naming using WebFault
):
If an exception has @WebFault
, then
messageName MUST be the name of the corresponding wsdl:message
element.
Service specific exceptions are defined as all checked exceptions except
java.rmi.RemoteException
and its subclasses.
◊ Conformance (java.lang.RuntimeExceptions
and java.rmi.RemoteExceptions
):
java.lang.RuntimeException
and java.rmi.RemoteException
and their
subclasses MUST NOT be treated as service specific exceptions and MUST
NOT be mapped to WSDL.
Jakarta XML Binding defines the mapping from a Java bean to XML Schema element
declarations and type definitions and is used to generate the global
element declaration that describes the fault. For exceptions that match
the pattern described in Section 2.5, “Fault” (i.e. exceptions
that have a getFaultInfo
method and WebFault
annotation), the
FaultBean is used as input to Jakarta XML Binding when mapping the exception to XML
Schema. For exceptions that do not match the pattern described in
Section 2.5, “Fault”, Jakarta XML Web Services maps those exceptions to Java beans
and then uses those Java beans as input to the Jakarta XML Binding mapping. The
following algorithm is used to map non-matching exception classes to the
corresponding Java beans for use with Jakarta XML Binding:
In the absence of customizations, the name of the bean is the same as the name of the Exception suffixed with "Bean".
In the absence of customizations, the package of the bean is a
generated jaxws
subpackage of the SEI package. E.g. if the SEI package
is com.example.stockquote
then the package of the bean would be
com.example.stockquote.jaxws
.
For each getter in the exception and its superclasses, a property of
the same type and name is added to the bean. The getCause
,
getLocalizedMessage
and getStackTrace
getters from
java.lang.Throwable
and the getClass
getter from java.lang.Object
are excluded from the list of getters to be mapped.
The bean is annotated with a Jakarta XML Binding @XmlType
annotation. If the
exception class has a @XmlType
annotation, then it is used for the fault
bean’s @XmlType
annotation. Otherwise, the fault bean’s @XmlType
annotation is computed with name property set to the name of the
exception and the namespace property set to the target namespace of the
corresponding portType.
Additionally, the @XmlType
annotation has a propOrder
property
whose value is an array containing the names of all the properties of
the exception class that were mapped in the previous bullet point,
sorted lexicographically according to the Unicode value of each of their
characters (i.e. using the same algorithm that the
int java.lang.String.compareTo(String)
method uses).
The bean is annotated with a Jakarta XML Binding @XmlRootElement
annotation whose
name
property is set, in the absence of customizations, to the name of
the exception.
◊ Conformance (Fault bean’s @XmlType
):
If an exception class has a @XmlType
annotation, then it MUST be
used for the fault bean’s @XmlType
annotation.
◊ Conformance (Fault bean name clash): Generated bean classes must have unique names within a package and MUST NOT clash with other classes in that package. Clashes during generation MUST be reported as an error and require user intervention via name customization to correct. Note that some platforms do not distiguish filenames based on case so comparisons MUST ignore case.
Figure 11, “Mapping of an exception to a bean for use with Jakarta XML Binding.” illustrates this mapping.
@WebFault(name="UnknownTickerFault", targetNamespace="...") public class UnknownTicker extends Exception { public UnknownTicker(Sting ticker) { ... } public UnknownTicker(Sting ticker, String message) { ... } public UnknownTicker(Sting ticker, String message, Throwable cause) { ... } public String getTicker() { ... } @XmlRootElement(name="UnknownTickerFault" targetNamespace="...") @XmlAccessorType(AccessType.FIELD) @XmlType(name="UnknownTicker", namespace="...", propOrder={"message", "ticker"}) public class UnknownTickerBean { public UnknownTickerBean() { ... } public String getTicker() { ... } public void setTicker(String ticker) { ... } public String getMessage() { ... } public void setMessage(String message) { ... }Application’s programming model doesn’t use these bean classes, so the applications need not package these classes. Jakarta XML Web Services implementations may generate these classes dynamically as specified in this section.
◊ Conformance (Dynamically generating exception beans): Jakarta XML Web Services implementations SHOULD not require an application to package exception bean classes. However, when the exception bean classes are packaged, they MUST be used.
3.8. Bindings
In WSDL 1.1, an abstract port type can be bound to multiple protocols.
◊ Conformance (Binding selection): An implementation MUST generate a WSDL binding according to the rules of the binding denoted by the
BindingType
annotation (see Section 7.8, “jakarta.xml.ws.BindingType”), if present, otherwise the default is the SOAP 1.1/HTTP binding (see Chapter 10, SOAP Binding).Each protocol binding extends a common extensible skeleton structure and there is one instance of each such structure for each protocol binding. An example of a port type and associated binding skeleton structure is shown in figure 12, “WSDL portType and associated binding”.
12. WSDL portType and associated binding<portType name="StockQuoteProvider"> <operation name="getPrice" parameterOrder="tickerSymbol"> <input message="tns:getPrice"/> <output message="tns:getPriceResponse"/> <fault message="tns:unknowntickerException"/> </operation> </portType> <binding name="StockQuoteProviderBinding"> <!-- binding specific extensions possible here --> <operation name="getPrice"> <!-- binding specific extensions possible here --> <input message="tns:getPrice"> <!-- binding specific extensions possible here --> </input> <output message="tns:getPriceResponse"> <!-- binding specific extensions possible here --> </output> <fault message="tns:unknowntickerException"> <!-- binding specific extensions possible here --> </fault> </operation> </binding>The common skeleton structure is mapped from Java as described in the following subsections.
3.8.1. Interface
A Java SEI is mapped to a
wsdl:binding
element and zero or morewsdl:port
extensibility elements.The
wsdl:binding
element acts as a container for other WSDL elements that together form the WSDL description of the binding to a protocol of the correspondingwsdl:portType
. The value of thename
attribute of thewsdl:binding
is not significant, by convention it contains the qualified name of the correspondingwsdl:portType
suffixed with "Binding".The
wsdl:port
extensibility elements define the binding specific endpoint address for a given port, see Section 3.11, “Service and Ports”.3.8.2. Method and Parameters
Each method in a Java SEI is mapped to a
wsdl:operation
child element of the correspondingwsdl:binding
. The value of thename
attribute of thewsdl:operation
element is the same as the correspondingwsdl:operation
element in the boundwsdl:portType
. Thewsdl:operation
element haswsdl:input
,wsdl:output
, andwsdl:fault
child elements if they are present in the correspondingwsdl:operation
child element of thewsdl:portType
being bound.3.9. Generics
In Jakarta XML Web Services when starting from Java and if generics are used in the document wrapped case, impelementations are required to use type erasure(see JLS section 4.6 for definition of Type Erasure) when generating the request / response wrapper beans and exception beans except in the case of
Collections
. Type erasure is a mapping from parameterized types or type variables to types that are never parameterized types or type variables. Erasure basically gets rid of all the generic type information from the runtime representation. In the case ofCollection
instead of applying erasure on theCollection
itself, erasure would be applied to the type ofCollection
i.e it would beCollection<erasure(T)>
. The following code snippets shows the result of erasure on a wrapper bean that is generated when using generics:public <T extends Shape> T setColor(T shape, Color color) { shape.setColor(color); return shape;@XmlRootElement(name = "setColor", namespace = "...") @XmlAccessorType(AccessType.FIELD) @XmlType(name = "setColor", namespace = "...") public class SetColor { @XmlElement(name = "arg0", namespace = "") private Shape arg0; @XmlElement(name = "arg1", namespace = "") private Color arg0; public Shape getArg0() { return this.arg0; public void setArg0(Shape arg0) { this.arg0 = arg0; public Color getArg1() { return this.arg1; public void setArg1(Color arg1) { this.arg1 = arg1;@XmlRootElement(name = "echoShapeList", namespace = "...") @XmlAccessorType(AccessType.FIELD) @XmlType(name = "echoShapeList", namespace = "...") public class EchoShapeList { @XmlElement(name = "arg0", namespace = "") private List<Shape> arg0; public List<Shape> getArg0() { return this.arg0; public void setArg0(List<Shape> arg0) { this.arg0 = arg0;@XmlRootElement(name = "echoTList", namespace = "...") @XmlAccessorType(AccessType.FIELD) @XmlType(name = "echoTList", namespace = "...") public class EchoTList { @XmlElement(name = "arg0", namespace = "") private List<Object> arg0; public List<Object> getArg0() { return this.arg0; public void setArg0(List<Object> arg0) { this.arg0 = arg0;public List<? extends Shape> setArea(List<? extends Shape> list) { Iterator iterator = list.iterator(); while(iterator.haNext()) { iterator.next().setArea(...); return list;@XmlRootElement(name = "setArea", namespace = "...") @XmlAccessorType(AccessType.FIELD) @XmlType(name = "setArea", namespace = "...") public class SetArea { @XmlElement(name = "arg0", namespace = "") private List<Shape> arg0; public List<Shape> getArg0() { return this.arg0; public void setArg0(List<Shape> arg0) { this.arg0 = arg0;3.10. SOAP HTTP Binding
This section describes the additional WSDL binding elements generated when mapping Java to WSDL 1.1 using the SOAP HTTP binding.
◊ Conformance (SOAP binding support): Implementations MUST be able to generate SOAP HTTP bindings when mapping Java to WSDL 1.1.
Figure 13, “WSDL SOAP HTTP binding” shows an example of a SOAP HTTP binding.
13. WSDL SOAP HTTP binding<binding name="StockQuoteProviderBinding"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/> <operation name="getPrice"> <soap:operation style="document|rpc"/> <input message="tns:getPrice"> <soap:body use="literal"/> </input> <output message="tns:getPriceResponse"> <soap:body use="literal"/> </output> <fault message="tns:unknowntickerException"> <soap:fault use="literal"/> </fault> </operation> </binding>A Java SEI is mapped to a
soap:binding
child element of the correspondingwsdl:binding
element plus asoap:address
child element of any correspondingwsdl:port
element (see Section 3.11, “Service and Ports”).The value of the
transport
attribute of thesoap:binding
ishttp://schemas.xmlsoap.org/soap/http
. The value of thestyle
attribute of thesoap:binding
is eitherdocument
orrpc
.◊ Conformance (SOAP binding style required): Implementations MUST include a
style
attribute on a generatedsoap:binding
.3.10.2. Method and Parameters
Each method in a Java SEI is mapped to a
soap:operation
child element of the correspondingwsdl:operation
. The value of thestyle
attribute of thesoap:operation
isdocument
orrpc
. If not specified, the value defaults to the value of thestyle
attribute of thesoap:binding
. WS-I Basic Profile[8] requires that all operations within a given SOAP HTTP binding instance have the same binding style.The parameters of a Java method are mapped to
soap:body
orsoap:header
child elements of thewsdl:input
andwsdl:output
elements for eachwsdl:operation
binding element. The value of theuse
attribute of thesoap:body
isliteral
. Figure 14, “WSDL definition using document style” shows an example using document style, figure 15, “WSDL definition using rpc style” shows the same example using rpc style.14. WSDL definition using document style<types> <schema targetNamespace="..."> <xsd:element name="getPrice" type="tns:getPriceType"/> <xsd:complexType name="getPriceType"> <xsd:sequence> <xsd:element name="tickerSymbol" type="xsd:string"/> </xsd:sequence> </xsd:complexType> <xsd:element name="getPriceResponse" type="tns:getPriceResponseType"/> <xsd:complexType name="getPriceResponseType"> <xsd:sequence> <xsd:element name="return" type="xsd:float"/> </xsd:sequence> </xsd:complexType> </schema> </types> <message name="getPrice"> <part name="getPrice" element="tns:getPrice"/> </message> <message name="getPriceResponse"> <part name="getPriceResponse" element="tns:getPriceResponse"/> </message> <portType name="StockQuoteProvider"> <operation name="getPrice" parameterOrder="tickerSymbol"> <input message="tns:getPrice"/> <output message="tns:getPriceResponse"/> </operation> </portType> <binding name="StockQuoteProviderBinding"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/> <operation name="getPrice" parameterOrder="tickerSymbol"> <soap:operation/> <input message="tns:getPrice"> <soap:body use="literal"/> </input> <output message="tns:getPriceResponse"> <soap:body use="literal"/> </output> </operation> </binding><types> <schema targetNamespace="..."> <xsd:element name="getPrice" type="tns:getPriceType"/> <xsd:complexType name="getPriceType"> <xsd:sequence> <xsd:element form="unqualified" name="tickerSymbol" type="xsd:string"/> </xsd:sequence> </xsd:complexType> <xsd:element name="getPriceResponse" type="tns:getPriceResponseType"/> <xsd:complexType name="getPriceResponseType"> <xsd:sequence> <xsd:element form="unqualified" name="return" type="xsd:float"/> </xsd:sequence> </xsd:complexType> </schema> </types> <message name="getPrice"> <part name="tickerSymbol" type="xsd:string"/> </message> <message name="getPriceResponse"> <part name="result" type="xsd:float"/> </message> <portType name="StockQuoteProvider"> <operation name="getPrice"> <input message="tns:getPrice"/> <output message="tns:getPriceResponse"/> </operation> </portType> <binding name="StockQuoteProviderBinding"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="rpc"/> <operation name="getPrice"> <soap:operation/> <input message="tns:getPrice"> <soap:body use="literal"/> </input> <output message="tns:getPriceResponse"> <soap:body use="literal"/> </output> </operation> </binding>3.11. Service and Ports
A Java service implementation class is mapped to a single
wsdl:service
element that is a child of awsdl:definitions
element for the appropriate target namespace. The latter is mapped from the value of thetargetNamespace
element of theWebService
annotation, if non-empty value, otherwise from the package of the Java service implementation class according to the rules in Section 3.2, “Package”.In mapping a
@WebService
-annotated class (see Section 3.3, “Class”) to awsdl:service
, theserviceName
element of theWebService
annotation are used to derive the service name. The value of thename
attribute of thewsdl:service
element is computed according to the Jakarta XML Web Services Metadata [16] specification. It is given by theserviceName
element of theWebService
annotation, if present with a non-default value, otherwise the name of the implementation class with the "Service" suffix appended to it.◊ Conformance (Service creation): Implementations MUST be able to map classes annotated with the
jakarta.jws.WebService
annotation to WSDLwsdl:service
elements.A WSDL 1.1 service is a collection of related
wsdl:port
elements. Awsdl:port
element describes a port type bound to a particular protocol (awsdl:binding
) that is available at particular endpoint address.Each desired port is represented by a
wsdl:port
child element of the singlewsdl:service
element mapped from the Java package. Jakarta XML Web Services allows specifying one port of one binding type for each service defined by the application. Implementations MAY support additional ports, as long as their names do not conflict with the standard one.◊ Conformance (Port selection): The
portName
element of theWebService
annotation, if present, MUST be used to derive the port name to use in WSDL. In the absence of aportName
element, an implementation MUST use the value of thename
element of theWebService
annotation, if present, suffixed with "Port". Otherwise, an implementation MUST use the simple name of the class annotated withWebService
suffixed with "Port".◊ Conformance (Port binding): The WSDL port defined for a service MUST refer to a binding of the type indicated by the
BindingType
annotation on the service implementation class (see Section 3.8, “Bindings”).Binding specific child extension elements of the
wsdl:port
element define the endpoint address for a port. E.g. see thesoap:address
element described in Section 3.10.1, “Interface”.If the endpoint enables Addressing, that can be indicated in the generated WSDL as per the Addressing 1.0 - Metadata[27].
◊ Conformance (Use of Addressing): Endpoint’s use of addressing, if any, MUST be indicated in the
wsdl:binding
orwsdl:port
sections of the WSDL 1.1 as per WS-Addressing 1.0 - Metadata[27].Example 1: Possible Policy assertion for
@Addressing
in the generated WSDLThis chapter describes the standard APIs provided for client side use of Jakarta XML Web Services. These APIs allow a client to create proxies for remote service endpoints and dynamically construct operation invocations.
Conformance requirements in this chapter use the term 'implementation' to refer to a client side Jakarta XML Web Services runtime system.
4.1. jakarta.xml.ws.Service
Service
is an abstraction that represents a WSDL service. A WSDLservice
is a collection of related ports, each of which consists of a port type bound to a particular protocol and available at a particular endpoint address.
Service
instances are created as described in Section 4.1.1, “Service Usage”.Service
instances provide facilities to:Create an instance of a proxy via one of the
getPort
methods. See Section 4.2.3, “Proxies” for information on proxies.Create a
Dispatch
instance via thecreateDispatch
method. See Section 4.3, “jakarta.xml.ws.Dispatch” for information on theDispatch
interface.Create a new port via the
addPort
method. Such ports only include binding and endpoint information and are thus only suitable for creatingDispatch
instances since these do not require WSDL port type information.Configure per-service, per-port, and per-protocol message handlers using a handler resolver (see Section 4.1.3, “Handler Resolver”).
Configure the
java.util.concurrent.Executor
to be used for asynchronous invocations (see Section 4.1.4, “Executor”).◊ Conformance (Service completeness): A
Service
implementation MUST be capable of creating proxies,Dispatch
instances, and new ports.All the service methods except the static
create
methods and the constructors delegate tojakarta.xml.ws.spi.ServiceDelegate
, see Section 6.3, “jakarta.xml.ws.spi.ServiceDelegate”.4.1.1. Service Usage
4.1.1.1. Dynamic case
In the dynamic case, when nothing is generated, a Java SE service client uses
Service.create
to createService
instances, the following code illustrates this process.URL wsdlLocation = new URL("http://example.org/my.wsdl"); QName serviceName = new QName("http://example.org/sample", "MyService"); Service s = Service.create(wsdlLocation, serviceName);create(URL wsdlLocation, QName serviceName)
Returns a service object for the specified WSDL document and service name.
create(QName serviceName)
Returns a service object for a service with the given name. No WSDL document is attached to the service.
create(URL wsdlLocation, QName serviceName, WebServiceFeature … features)
Returns a service object for the specified WSDL document and service name. The created service needs to be configured with the web service features.
create(QName serviceName, WebServiceFeature … features)
Returns a service object for a service with the given name. No WSDL document is attached to the service. The created service needs to be configured with the web service features.
◊ Conformance (Service Creation Failure): If a
create
method fails to create a service object, it MUST throwWebServiceException
. The cause of that exception SHOULD be set to an exception that provides more information on the cause of the error (e.g. anIOException
).◊ Conformance (Service creation using features): The created service object MUST honor the web service features. If a Jakarta XML Web Services implementation doesn’t understand any passed-in feature, it MUST throw
WebServiceException
.4.1.1.2. Static case
When starting from a WSDL document, a concrete service implementation class MUST be generated as defined in Section 2.7, “Service and Port”. The generated implementation class MUST have all the public constructors as shown in the example below.
When using the constructors, the default WSDL location and service name are implicitly taken from the
WebServiceClient
annotation that decorates the generated class.The following code snippet shows the generated constructors:
// Generated Service Class @WebServiceClient(name="StockQuoteService", targetNamespace="http://example.com/stocks", wsdlLocation="http://example.com/stocks.wsdl") public class StockQuoteService extends jakarta.xml.ws.Service { public StockQuoteService() { super(new URL("http://example.com/stocks.wsdl"), new QName("http://example.com/stocks", "StockQuoteService")); public StockQuoteService(WebServiceFeature ... features) { super(new URL("http://example.com/stocks.wsdl"), new QName("http://example.com/stocks", "StockQuoteService"), features); public StockQuoteService(URL wsdlLocation) { super(wsdlLocation, new QName("http://example.com/stocks", "StockQuoteService")); public StockQuoteService(URL wsdlLocation, WebServiceFeature ... features) { super(wsdlLocation, new QName("http://example.com/stocks", "StockQuoteService"), features); public StockQuoteService(URL wsdlLocation, QName serviceName) { super(wsdlLocation, serviceName); public StockQuoteService(URL wsdlLocation, QName serviceName, WebServiceFeature ... features) { super(wsdlLocation, serviceName, features);4.1.2. Provider and Service Delegate
Internally, the
Service
class delegates all of its functionality to aServiceDelegate
object, which is part of the SPI used to allow pluggability of implementations.For this to work, every
Service
object internally MUST hold a reference to ajakarta.xml.ws.spi.ServiceDelegate
object (see Section 6.3, “jakarta.xml.ws.spi.ServiceDelegate”) to which it delegates every non-static method call. The field used to hold the reference MUST be private.The delegate is set when a new
Service
instance is created, which must necessarily happen when the protected, two-argument constructor defined on theService
class is called. The constructor MUST obtain a Provider instance (see Section 6.2.2, “Creating Endpoint Objects”) and call itscreateServiceDelegate
method, passing the two arguments received from its caller and the class object for the instance being created (i.e.this.getClass()
).In order to ensure that the delegate is properly constructed, the static
create
method defined on theService
class MUST call the protected constructor to create a new service instance, passing the same arguments that it received from the application.The following code snippet shows an implementation of the
protected Service(java.net.URL wsdlDocumentLocation, QName serviceName) { delegate = Provider.provider() .createServiceDelegate(wsdlDocumentLocation serviceName, this.getClass()); public static Service create(java.net.URL wsdlDocumentLocation, QName serviceName) { return new Service(wsdlDocumentLocation, serviceName); // begin delegated methods public <T> T getPort(Class<T> serviceEndpointInterface) { return delegate.getPort(serviceEndpointInterface);Service
API that satisfies the requirements above:4.1.3. Handler Resolver
Jakarta XML Web Services provides a flexible plug-in framework for message processing modules, known as handlers, that may be used to extend the capabilities of a Jakarta XML Web Services runtime system. Chapter 9, Handler Framework describes the handler framework in detail. A
Service
instance provides access to aHandlerResolver
via a pair ofgetHandlerResolver
/setHandlerResolver
methods that may be used to configure a set of handlers on a per-service, per-port or per-protocol binding basis.When a
Service
instance is used to create a proxy or aDispatch
instance then the handler resolver currently registered with the service is used to create the required handler chain. Subsequent changes to the handler resolver configured for aService
instance do not affect the handlers on previously created proxies, orDispatch
instances.4.1.4. Executor
Service
instances can be configured with ajava.util.concurrent.Executor
. The executor will then be used to invoke any asynchronous callbacks requested by the application. ThesetExecutor
andgetExecutor
methods ofService
can be used to modify and retrieve the executor configured for a service.◊ Conformance (Use of Executor): If an executor object is successfully configured for use by a Service via the
setExecutor
method, then subsequent asynchronous callbacks MUST be delivered using the specified executor. Calls that were outstanding at the time thesetExecutor
method was called MAY use the previously set executor, if any.◊ Conformance (Default Executor): Lacking an application-specified executor, an implementation MUST use its own executor, a
java.util.concurrent.ThreadPoolExecutor
or analogous mechanism, to deliver callbacks. An implementation MUST NOT use application-provided threads to deliver callbacks, e.g. by "borrowing" them when the application invokes a remote operation.4.2. jakarta.xml.ws.BindingProvider
The
BindingProvider
interface represents a component that provides a protocol binding for use by clients, it is implemented by proxies and is extended by theDispatch
interface. Figure 1, “Binding Provider Class Relationships” illustrates the class relationships.A web service client can get an
jakarta.xml.ws.EndpointReference
from aBindingProvider
instance that will reference the target endpoint.◊ Conformance (
jakarta.xml.ws.BindingProvider.getEndpointReference
): An implementation MUST be able to return anjakarta.xml.ws.EndpointReference
for the target endpoint if a SOAP binding is being used. If theBindingProvider
instance has a binding that is either SOAP 1.1/HTTP or SOAP 1.2/HTTP, then aW3CEndpointReference
MUST be returned. If the binding is XML/HTTP anjava.lang.UnsupportedOperationException
MUST be thrown.◊ Conformance (
BindingProvider
’sW3CEndpointReference
): The returnedW3CEndpointReference
MUST containwsam:ServiceName
andwsam:ServiceName[@EndpointName]
as per Addressing 1.0 - Metadata[27]. Thewsam:InterfaceName
MAY be present in theW3CEndpointReference
. If there is an associated WSDL, then the WSDL location MUST be referenced usingwsdli:wsdlLocation
in theW3CEndpointReference
’swsa:Metadata
.The
BindingProvider
interface provides methods to obtain theBinding
and to manipulate the binding providers context. Further details onBinding
can be found in Section 6.1, “jakarta.xml.ws.Binding”. The following subsection describes the function and use of context withBindingProvider
instances.4.2.1. Configuration
Additional metadata is often required to control information exchanges, this metadata forms the context of an exchange.
A
BindingProvider
instance maintains separate contexts for the request and response phases of a message exchange with a service:Request The contents of the request context are used to initialize the message context (see Section 9.4.1, “jakarta.xml.ws.handler.MessageContext”) prior to invoking any handlers (see Chapter 9, Handler Framework) for the outbound message. Each property within the request context is copied to the message context with a scope of
HANDLER
.
The contents of the message context are used to initialize the
response context after invoking any handlers for an inbound message.
The response context is first emptied and then each property in the
message context that has a scope of APPLICATION
is copied to the
response context.
◊ Conformance (Message context decoupling): Modifications to the request context while previously invoked operations are in-progress MUST NOT affect the contents of the message context for the previously invoked operations.
The request and response contexts are of type
java.util.Map<String,Object>
and are obtained using the
getRequestContext
and getResponseContext
methods of
BindingProvider
.
In some cases, data from the context may need to accompany information exchanges. When this is required, protocol bindings or handlers (see Chapter 9, Handler Framework) are responsible for annotating outbound protocol data units and extracting metadata from inbound protocol data units.
An example of the latter usage: a handler in a SOAP binding might introduce a header into a SOAP request message to carry metadata from the request context and might add metadata to the response context from the contents of a header in a response SOAP message.
Table 2, “Standard BindingProvider properties” lists a set of standard properties that may be set
on a BindingProvider
instance and shows which properties are optional
for implementations to support.
The address of the service endpoint as a protocol specific URI. The URI scheme must match the protocol binding in use.
jakarta.xml.ws.security.auth
.username
String
Username for HTTP basic authentication.
.password
String
Password for HTTP basic authentication.
jakarta.xml.ws.session
.maintain
Boolean
Used by a client to indicate whether it
is prepared to participate in a service
endpoint initiated session. The default
value is false
.
jakarta.xml.ws.soap.http.soapaction
Boolean
Controls whether the SOAPAction
HTTP header is used in SOAP/HTTP
requests. Default value is false
.
String
The value of the SOAPAction
HTTP
header if the jakarta.xml.ws.soap.http.soapaction.use
property is
set to true
. Default value is an empty string.
◊ Conformance (Required BindingProvider
properties):
An implementation MUST support
all properties shown as mandatory in Table 2, “Standard BindingProvider properties”.
Note that properties shown as mandatory are not required to be present in any particular context; however, if present, they must be honored.
◊ Conformance (Optional BindingProvider
properties):
An implementation MAY support
the properties shown as optional in Table 2, “Standard BindingProvider properties”.
◊ Conformance (Additional context properties): Implementations MAY define additional implementation specific properties not listed in Table 2, “Standard BindingProvider properties”. The java.* and javax.* namespaces are reserved for use by Java specifications.
Implementation specific properties are discouraged as they limit application portability. Applications and binding handlers can interact using application specific properties.
BindingProvider
instances may provide asynchronous operation
capabilities. When used, asynchronous operation invocations are
decoupled from the BindingProvider
instance at invocation time such
that the response context is not updated when the operation completes.
Instead a separate response context is made available using the
Response
interface, see Section 2.3.4, “Asynchrony” and
Section 4.3.3, “Asynchronous Response” for further details on the use of asynchronous methods.
◊ Conformance (Asynchronous response context): The local response context of a
BindingProvider
instance MUST NOT be updated on completion of an
asynchronous operation, instead the response context MUST be made
available via a Response
instance.
When using callback-based asynchronous operations, an implementation
MUST use the Executor
set on the service instance that was used to
create the proxy or Dispatch
instance being used. See
Section 4.1.4, “Executor” for more information on configuring the Executor
to
be used.
Proxies provide access to service endpoint interfaces at runtime without
requiring static generation of a stub class. See
java.lang.reflect.Proxy
for more information on dynamic proxies as
supported by the JDK.
Proxy instances are not guaranteed to be thread safe. If the instances
are accessed by multiple threads, usual synchronization techniques can
be used to support multiple threads.
◊ Conformance (Proxy support): An implementation MUST support proxies.
◊ Conformance (Implementing BindingProvider
):
An instance of a proxy MUST implement jakarta.xml.ws.BindingProvider
.
A proxy is created using the getPort
methods of a Service
instance:
T getPort(Class<T> sei)
Returns a proxy for the specified SEI, the Service
instance is
responsible for selecting the port (protocol binding and endpoint
address).
T getPort(QName port, Class<T> sei)
Returns a proxy for the endpoint specified by port
. Note that the
namespace component of port
is the target namespace of the WSDL
definitions document.
T getPort(Class<T> sei, WebServiceFeature… features)
Returns a proxy for the specified SEI, the Service
instance is
responsible for selecting the port (protocol binding and and endpoint
address). The specified features
MUST be enabled/disabled and
configured as specified.
T getPort(QName port, Class<T> sei, WebServiceFeature… features)
Returns a proxy for the endpoint specified by port
. Note that the
namespace component of port is the target namespace of the WSDL
definition document. The specified features
MUST be enabled/disabled
and configured as specified.
T getPort(EndpointReference epr, Class<T> sei, WebServiceFeature… features)
Returns a proxy for the endpoint specified by epr
. The address
stored in the epr
MUST be used during invocations on the endpoint.
The epr
MUST NOT be used as the value of any addressing header such
as wsa:ReplyTo
. The specified features
MUST be enabled/disabled
and configured as specified. Any Jakarta XML Web Services supported epr
metadata MUST
match the Service
instance’s ServiceName, otherwise a
WebServiceExeption
MUST be thrown. Any Jakarta XML Web Services supported epr
metadata MUST match the PortName for the sei
, otherwise a
WebServiceException
MUST be thrown. If the Service
instance has an
associated WSDL, its WSDL MUST be used to determine any binding
information, any WSDL in a Jakarta XML Web Services suppported epr
metadata MUST be
ignored. If the Service
instance does not have a WSDL, then any WSDL
inlined in the Jakarta XML Web Services supported metadata of the epr
MUST be used to
determine binding information. If there is not enough metadata in the
Service
instance or in the epr
metadata to determine a port, then
a WebServiceException
MUST be thrown.
The serviceEndpointInterface
parameter specifies the interface that
will be implemented by the proxy. The service endpoint interface
provided by the client needs to conform to the WSDL to Java mapping
rules specified in Chapter 2, WSDL 1.1 to Java Mapping. Creation of a proxy
can fail if the interface doesn’t conform to the mapping or if any WSDL
related metadata is missing from the Service
instance.
◊ Conformance (Service.getPort
failure):
If creation of a proxy fails, an
implementation MUST throw jakarta.xml.ws.WebServiceException
. The cause
of that exception SHOULD be set to an exception that provides more
information on the cause of the error (e.g. an IOException
).
The use of WS-Addressing requirements can be indicated in a WSDL as per
Addressing 1.0 - Metadata[27]. A proxy created using
getPort()
calls is configured with the addressing requirements as
specified in the associated WSDL or explicitly passing
jakarta.xml.ws.soap.AddressingFeature
web service feature.
◊ Conformance (Proxy’s Addressing use): A proxy MUST be configured with the use of
addressing requirements as indicated in the associated WSDL. But if the
proxy is created using jakarta.xml.ws.soap.AddressingFeature
web service
feature, the feature’s addressing requirements MUST take precedence over
WSDL’s addressing requirements.
An implementation is not required to fully validate the service endpoint interface provided by the client against the corresponding WSDL definitions and may choose to implement any validation it does require in an implementation specific manner (e.g., lazy and eager validation are both acceptable).
The following example shows the use of a proxy to invoke a method
(getLastTradePrice
) on a service endpoint interface
(com.example.StockQuoteProvider
). Note that no statically generated
stub class is involved.
jakarta.xml.ws.Service service = ...; com.example.StockQuoteProvider proxy = service.getPort(portName, com.example.StockQuoteProvider.class) jakarta.xml.ws.BindingProvider bp = (jakarta.xml.ws.BindingProvider) proxy; Map<String,Object> context = bp.getRequestContext(); context.setProperty("jakarta.xml.ws.session.maintain", Boolean.TRUE); proxy.getLastTradePrice("ACME");
All methods of an SEI can throw jakarta.xml.ws.WebServiceException
and
zero or more service specific exceptions.
◊ Conformance (Remote Exceptions): If an error occurs during a remote operation
invocation, an implemention MUST throw a service specific exception if
possible. If the error cannot be mapped to a service specific exception,
an implementation MUST throw a ProtocolException
or one of its
subclasses, as appropriate for the binding in use. See
Section 6.4.1, “Protocol Specific Exception Handling” for more details.
◊ Conformance (Exceptions During Handler Processing): Exceptions thrown during handler
processing on the client MUST be passed on to the application. If the
exception in question is a subclass of WebServiceException
then an
implementation MUST rethrow it as-is, without any additional wrapping,
otherwise it MUST throw a WebServiceException
whose cause is set to
the exception that was thrown during handler processing.
◊ Conformance (Other Exceptions): For all other errors, i.e. all those that don’t occur
as part of a remote invocation or handler processing, an implementation
MUST throw a WebServiceException
whose cause is the original local
exception that was thrown, if any.
For instance, an error in the configuration of a proxy instance may
result in a WebServiceException
whose cause is a
java.lang.IllegalArgumentException
thrown by some implementation code.
XML Web Services use XML messages for communication between services and
service clients. The higher level Jakarta XML Web Services APIs are designed to hide the
details of converting between Java method invocations and the
corresponding XML messages, but in some cases operating at the XML
message level is desirable. The Dispatch
interface provides support
for this mode of interaction.
◊ Conformance (Dispatch
support):
Implementations MUST support the
jakarta.xml.ws.Dispatch
interface.
Dispatch
supports two usage modes, identified by the constants
jakarta.xml.ws.Service.Mode.MESSAGE
and
jakarta.xml.ws.Service.Mode.PAYLOAD
respectively:
In this mode, client applications work directly with protocol-specific message structures. E.g., when used with a SOAP protocol binding, a client application would work directly with a SOAP message.
In this mode, client applications work with the payload of messages
rather than the messages themselves. E.g., when used with a SOAP
protocol binding, a client application would work with the contents of
the SOAP Body
rather than the SOAP message as a whole.
Dispatch
is a low level API that requires clients to construct
messages or message payloads as XML and requires an intimate knowledge
of the desired message or payload structure. Dispatch
is a generic
class that supports input and output of messages or message payloads of
any type. Implementations are required to support the following types of
object:
javax.xml.transform.Source
Use of Source
objects allows clients to use XML generating and
consuming APIs directly. Source
objects may be used with any
protocol binding in either message or message payload mode. When used
with the HTTP binding (see Chapter 11, HTTP Binding) in payload mode, the
HTTP request and response entity bodies must contain XML directly or a
MIME wrapper with an XML root part. A null
value for Source
is
allowed to make it possible to invoke an HTTP GET method in the HTTP
Binding case. A WebServiceException
MUST be thrown when a
Dispatch<Source>
is invoked and the Service returns a MIME message.
When used in message mode, if the message is not an XML message a
WebServiceException
MUST be thrown.
Use of Jakarta XML Binding allows clients to use Jakarta XML Binding objects generated from an XML
Schema to create and manipulate XML representations and to use these
objects with Jakarta XML Web Services without requiring an intermediate XML
serialization. Jakarta XML Binding objects may be used with any protocol binding in
either message or message payload mode. When used with the HTTP
binding (see Chapter 11, HTTP Binding) in payload mode, the HTTP request
and response entity bodies must contain XML directly or a MIME wrapper
with an XML root part. When used in mssage mode, if the message is not
an XML message a WebServiceException
MUST be thrown.
jakarta.xml.soap.SOAPMessage
Use of SOAPMessage
objects allows clients to work with SOAP messages
using the convenience features provided by the jakarta.xml.soap
package. SOAPMessage
objects may only be used with Dispatch
instances that use the SOAP binding (see Chapter 10, SOAP Binding) in
message mode.
jakarta.activation.DataSource
Use of DataSource
objects allows clients to work with MIME-typed
messages. DataSource
objects may only be used with Dispatch
instances that use the HTTP binding (see Chapter 11, HTTP Binding) in
message mode.
A Jakarta XML Web Services implementation MUST honor all WebServiceFeatures
(Section 6.5, “jakarta.xml.ws.WebServiceFeature”) for Dispatch
based applications.
Dispatch
instances are obtained using the createDispatch
factory
methods of a Service
instance. The mode
parameter of
createDispatch
controls whether the new Dispatch
instance is message
or message payload oriented. The type
parameter controls the type of
object used for messages or message payloads. Dispatch
instances are
not thread safe.
Dispatch
instances are not required to be dynamically configurable for
different protocol bindings; the WSDL binding from which the Dispatch
instance is generated contains static information including the protocol
binding and service endpoint address. However, a Dispatch
instance may
support configuration of certain aspects of its operation and provides
methods (inherited from BindingProvider
) to dynamically query and
change the values of properties in its request and response contexts –
see Section 4.2.1.1, “Standard Properties” for a list of standard properties.
A Dispatch
instance supports three invocation modes:
invoke
methods)The method blocks until the remote operation completes and the results are returned.
invokeAsync
methods)The method returns immediately, any results are provided either through a callback or via a polling object.
invokeOneWay
methods)The method is logically non-blocking, subject to the capabilities of the underlying protocol, no results are returned.
Calling invoke
on the different Dispatch
types defined above with a
null
value means an empty message will be sent where allowed by the
binding, message mode and the MEP. So for example when using -
SOAP 1.1 / HTTP binding in payload mode using null
will send a soap
message with an empty body.
SOAP 1.1 / HTTP binding in message mode null
being passed to
invoke
is an error condition and will result in a
WebServiceException
.
XML / HTTP binding both in payload and in message mode null
being
passed to invoke
with the HTTP POST and PUT operations is an error
condition and will result in a WebServiceException
.
◊ Conformance (Failed Dispatch.invoke
):
When an operation is invoked using an
invoke
method, an implementation MUST throw a WebServiceException
if
there is any error in the configuration of the Dispatch
instance or a
ProtocolException
if an error occurs during the remote operation
invocation.
◊ Conformance (Failed Dispatch.invokeAsync
):
When an operation is invoked using an
invokeAsync
method, an implementation MUST throw a
WebServiceException
if there is any error in the configuration of the
Dispatch
instance. Errors that occur during the invocation are
reported when the client attempts to retrieve the results of the
operation.
◊ Conformance (Failed Dispatch.invokeOneWay
):
When an operation is invoked using an
invokeOneWay
method, an implementation MUST throw a
WebServiceException
if there is any error in the configuration of the
Dispatch
instance or if an error is detected[7] during
the remote operation invocation.
See Section 10.4.1, “HTTP” for additional SOAP/HTTP requirements.
Dispatch
supports two forms of asynchronous invocation:
The invokeAsync
method returns a Response
(see below) that may be
polled using the methods inherited from Future<T>
to determine when
the operation has completed and to retrieve the results.
The client supplies an AsyncHandler
(see below) and the runtime
calls the handleResponse
method when the results of the operation
are available. The invokeAsync
method returns a wildcard Future
(Future<?>
) that may be polled to determine when the operation has
completed. The object returned from Future<?>.get()
has no standard
type. Client code should not attempt to cast the object to any
particular type as this will result in non-portable behavior.
In both cases, errors that occur during the invocation are reported via an exception when the client attempts to retrieve the results of the operation.
◊ Conformance (Reporting asynchronous errors): If the operation invocation fails, an
implementation MUST throw a java.util.concurrent.ExecutionException
from the Response.get
method.
The cause of an ExecutionException
is the original exception raised.
In the case of a Response
instance this can only be a
WebServiceException
or one of its subclasses.
The following interfaces are used to obtain the results of an operation invocation:
jakarta.xml.ws.Response
A generic interface that is used to group the results of an invocation
with the response context. Response
extends
java.util.concurrent.Future<T>
to provide asynchronous result
polling capabilities.
jakarta.xml.ws.AsyncHandler
A generic interface that clients implement to receive results in an
asynchronous callback. It defines a single handleResponse
method
that has a Response
object as its argument.
Service
provides a createDispatch
factory method for creating
Dispatch
instances that contain an embedded JAXBContext
. The
context
parameter contains the JAXBContext
instance that the created
Dispatch
instance will use to marshall and unmarshall messages or
message payloads.
◊ Conformance (Marshalling failure): If an error occurs when using the supplied
JAXBContext
to marshall a request or unmarshall a response, an
implementation MUST throw a WebServiceException
whose cause
is set
to the original JAXBException
.
The following examples demonstrate use of Dispatch
methods in the
synchronous, asynchronous polling, and asynchronous callback modes. For
ease of reading, error handling has been omitted.
Source reqMsg = ...; Service service = ...; Dispatch<Source> disp = service.createDispatch(portName, Source.class, PAYLOAD); Source resMsg = disp.invoke(reqMsg);
SOAPMessage soapReqMsg = ...; Service service = ...; Dispatch<SOAPMessage> disp = service.createDispatch(portName, SOAPMessage.class, MESSAGE); SOAPMessage soapResMsg = disp.invoke(soapReqMsg);
JAXBContext jc = JAXBContext.newInstance("primer.po"); Unmarshaller u = jc.createUnmarshaller(); PurchaseOrder po = (PurchaseOrder) u.unmarshal( new FileInputStream("po.xml")); Service service = ...; Dispatch<Object> disp = service.createDispatch(portName, jc, PAYLOAD); OrderConfirmation conf = (OrderConfirmation) disp.invoke(po);
SOAPMessage soapReqMsg = ...; Service service = ...; Dispatch<SOAPMessage> disp = service.createDispatch(portName, SOAPMessage.class, MESSAGE); Response<SOAPMessage> res = disp.invokeAsync(soapReqMsg); while (!res.isDone()) { // do something while we wait SOAPMessage soapResMsg = res.get();
class MyHandler implements AsyncHandler<Source> { public void handleResponse(Response<Source> res) { Source resMsg = res.get(); // do something with the results Source reqMsg = ...; Service service = ...; Dispatch<Source> disp = service.createDispatch(portName, Source.class, PAYLOAD); MyHandler handler = new MyHandler(); disp.invokeAsync(reqMsg, handler);
Jakarta XML Web Services mandates support for a standard catalog facility to be used when resolving any Web service document that is part of the description of a Web service, specifically WSDL and XML Schema documents.
The facility in question is the OASIS XML Catalogs 1.1 specification [34]. It defines an entity catalog that handles the following two cases:
Mapping an external entity’s public identifier and/or system identifier to a URI reference.
Mapping the URI reference of a resource to another URI reference.
Using the entity catalog, an application can package one or more description and/or schema documents in jar files, avoiding costly remote accesses, or remap remote URIs to other, possibly local ones. Since the catalog is an XML document, a deployer can easily alter it to suit the local environment, unbeknownst to the application code.
The catalog is assembled by taking into account all accessible resources
whose name is META-INF/jax-ws-catalog.xml
. Each resource MUST be a
valid entity catalog according to the XML Catalogs 1.1 specification.
When running on the Java SE platform, the current context class loader
MUST be used to retrieve all the resources with the specified name.
Relative URIs inside a catalog file are relative to the location of the
catalog that contains them.
◊ Conformance (Use of the Catalog): In the process of resolving a URI that points to a WSDL document or any document reachable from it, a Jakarta XML Web Services implementation MUST perform a URI resolution for it, as prescribed by the XML Catalogs 1.1 specification, using the catalog defined above as its entity catalog.
In particular, every Jakarta XML Web Services API argument or annotation element whose semantics is that of a WSDL location URI MUST undergo URI resolution using the catalog facility described in this section.
Although defined in the client API chapter for reasons of ease of exposure, use of the catalog is in no way restricted to client uses of WSDL location URIs. In particular, resolutions of URIs to WSDL and schema documents that arise during the publishing of the contract for an endpoint (see Section 5.2.5, “Determining the Contract for an Endpoint”) are subject to the requirements in this section, resulting in catalog-based URI resolutions.
A jakarta.xml.ws.EndpointReference
is an abstraction that represents an
invocable web service endpoint. Client applications can use an
EndpointReference
to get a port for an SEI although doing so prevents
them from getting/setting the Executor
or HandlerResolver
which
would normally be done on a Service
instance. The EndpointReference
class delegates to the jakarta.xml.ws.spi.Provider
to perform the
getPort
operation. The following method can be used to get a proxy for
a Port.
getPort(Class<T> serviceEndpointInterface, WebServiceFeature… features)
Gets a proxy for the serviceEndpointInterface
that can be used to
invoke operations on the endpoint referred to by the
EndpointReference
instance. The specified features
MUST be
enabled/disabled and configured as specified. The returned proxy MUST
use the EndpointReference
instance to determine the endpoint address
and any reference parameters to be sent on endpoint invocations. The
EndpointReference
instance MUST NOT be used directly as the value of
an WS-Addressing header such as wsa:ReplyTo
. For this method to
successfully return a proxy, WSDL metadata MUST be available and the
EndpointReference
instance MUST contain an implementation understood
ServiceName
in its metadata.
This chapter describes requirements on Jakarta XML Web Services service implementations and standard APIs provided for their use.
Jakarta XML Web Services services typically implement a native Java service endpoint interface (SEI), perhaps mapped from a WSDL port type, either directly or via the use of annotations. Section 3.4, “Interface” describes the requirements that a Java interface must meet to qualify as a Jakarta XML Web Services SEI. Section 2.2, “Port Type” describes the mapping from a WSDL port type to an equivalent Java SEI.
Java SEIs provide a high level Java-centric abstraction that hides the
details of converting between Java objects and their XML representations
for use in XML-based messages. However, in some cases it is desirable
for services to be able to operate at the XML message level. The
Provider
interface offers an alternative to SEIs and may be
implemented by services wishing to work at the XML message level.
◊ Conformance (Provider support required): An implementation MUST support
Provider<Source>
in payload mode with all the predefined bindings. It
MUST also support Provider<SOAPMessage>
in message mode in conjunction
with the predefined SOAP bindings and
Provider<jakarta.activation.DataSource>
in message mode in conjunction
with the predefined HTTP binding.
◊ Conformance (Provider default constructor): A Provider
based service endpoint
implementation MUST provide a public default constructor.
An empty Source payload can be used in payload mode to send a response with no payload. An empty source can be constructed using zero-argument default constructors of DOMSource, SAXSource, and StreamSource.
A typed Provider
interface is one in which the type parameter has been
bound to a concrete class, e.g. Provider<Source>
or
Provider<SOAPMessage>
, as opposed to being left unbound, as in
Provider<T>
.
◊ Conformance (Provider implementation):
A Provider
based service endpoint
implementation MUST implement a typed Provider
interface.
◊ Conformance (WebServiceProvider annotation):
A Provider
based service endpoint
implementation MUST carry a WebServiceProvider
annotation (see
Section 7.7, “jakarta.xml.ws.WebServiceProvider”).
Provider
is a low level generic API that requires services to work
with messages or message payloads and hence requires an intimate
knowledge of the desired message or payload structure. The generic
nature of Provider
allows use with a variety of message object types.
A Jakarta XML Web Services implementation MUST honor all WebServiceFeatures
(Section 6.5, “jakarta.xml.ws.WebServiceFeature”) for Provider
based applications.
A Provider
based service instance’s invoke
method is called for each
message received for the service. When an invoke method returns null,
it is considered that no response needs to be sent by service.
The service runtime is required to catch exceptions thrown by a Provider
instance. A Provider
instance may make use of the protocol specific
exception handling mechanism as described in
Section 6.4.1, “Protocol Specific Exception Handling”. The protocol binding is responsible for
converting the exception into a protocol specific fault representation
and then invoking the handler chain and dispatching the fault message as
appropriate.
The ServiceMode
annotation is used to configure the messaging mode of
a Provider
instance. Use of @ServiceMode(value=MESSAGE)
indicates
that the provider instance wishes to receive and send entire protocol
messages (e.g. a SOAP message when using the SOAP binding); absence of
the annotation or use of @ServiceMode(value=PAYLOAD)
indicates that
the provider instance wishes to receive and send message payloads only
(e.g. the contents of a SOAP Body element when using the SOAP binding).
Provider instances MAY use the WebServiceContext
facility (see
Section 5.3, “jakarta.xml.ws.WebServiceContext”) to access the message context and other information
about the request currently being served.
The Jakarta XML Web Services runtime makes certain properties available to a Provider
instance that can be used to determine its configuration. These
properties are passed to the Provider
instance each time it is invoked
using the MessageContext
instance accessible from the
WebServiceContext
.
For brevity, error handling is omitted in the following examples.
@WebServiceProvider @ServiceMode(value=Service.Mode.MESSAGE) public class MyService implements Provider<SOAPMessage> { public MyService() { public SOAPMessage invoke(SOAPMessage request) { return request;@WebServiceProvider @ServiceMode(value=Service.Mode.PAYLOAD) public class MyService implements Provider<Source> { public MyService() { public Source invoke(Source request) { Source requestPayload = request.getPayload(); String replyElement = "<n:ack xmlns:n=’...’/>"; StreamSource reply = new StreamSource(new StringReader(replyElement)); return reply;@WebServiceProvider @ServiceMode(value=Service.Mode.PAYLOAD) public class MyService implements Provider<Source> { public MyService() { public Source invoke(Source request) { JAXBContent jc = JAXBContext.newInstance(...); Unmarshaller u = jc.createUnmarshaller(); Object requestObj = u.unmarshall(request); Acknowledgement reply = new Acknowledgement(...); return new JAXBSource(jc, reply);5.2. jakarta.xml.ws.Endpoint
The
Endpoint
class can be used to create and publish Web service endpoints.An endpoint consists of an object that acts as the Web service implementation (called here implementor) plus some configuration information, e.g. a
Binding
. Implementor and binding are set when the endpoint is created and cannot be modified later. Their values can be retrieved using thegetImplementor
andgetBinding
methods respectively. Other configuration information may be set at any time after the creation of anEndpoint
but before its publication.5.2.1. Endpoint Usage
Endpoints can be created using the following static methods on
Endpoint
:create(Object implementor)
Creates and returns an
Endpoint
for the specified implementor. If the implementor specifies a binding using thejakarta.xml.ws.BindingType
annotation it MUST be used else a default binding of SOAP 1.1 / HTTP binding MUST be used.create(Object implementor, WebServiceFeature … features)
Same as the above
create()
method. The createdEndpoint
is configured with the web service features. These features override the corresponding features that are specified in WSDL, if present.create(String bindingID, Object implementor)
Creates and returns an
Endpoint
for the specified binding and implementor. If the bindingID isnull
and no binding information is specified via thejakarta.xml.ws.BindingType
annotation then a default SOAP 1.1 / HTTP binding MUST be used.create(String bindingID, Object implementor, WebServiceFeature … features)
Same as the above
create()
method. The createdEndpoint
is configured with the web service features. These features override the corresponding features that are specified in WSDL, if present.publish(String address, Object implementor)
Creates and publishes an
Endpoint
for the given implementor. The binding is chosen by default based on the URL scheme of the provided address (which must be a URL). If a suitable binding if found, the endpoint is created then published as if theEndpoint.publish(String address)
method had been called. The createdEndpoint
is then returned as the value of the method.publish(String address, Object implementor, WebServiceFeature … features)
Same as the above
publish()
method. The createdEndpoint
is configured with the web service features. These features override the corresponding features that are specified in WSDL, if present.These methods MUST delegate the creation of Endpoint to the
jakarta.xml.ws.spi.Provider
SPI class (see Section 6.2, “jakarta.xml.ws.spi.Provider”) by calling thecreateEndpoint
andcreateAndPublishEndpoint
methods respectively.An implementor object MUST be either an instance of a class annotated with the
@WebService
annotation according to the rules in Chapter 3, Java to WSDL 1.1 Mapping or an instance of a class annotated with theWebServiceProvider
annotation and implementing theProvider
interface (see Section 5.1, “jakarta.xml.ws.Provider”).The
publish(String,Object)
method is provided as a shortcut for the common operation of creating and publishing anEndpoint
. The following code provides an example of its use:// assume Test is an endpoint implementation class annotated with @WebService Test test = new Test(); Endpoint e = Endpoint.publish("http://localhost:8080/test", test);◊ Conformance (Endpoint publish(String address, Object implementor) Method): The effect of invoking the
publish
method on anEndpoint
MUST be the same as first invoking thecreate
method with the binding ID appropriate to the URL scheme used by the address, then invoking thepublish(String address)
method on the resultingendpoint
.◊ Conformance (Default Endpoint Binding): In the absence of a specified binding, if the URL scheme for the address argument of the
Endpoint.publish
method is "http" or "https" then an implementation MUST use the SOAP 1.1/HTTP binding (see Chapter 10, SOAP Binding) as the binding for the newly created endpoint.◊ Conformance (Other Bindings): An implementation MAY support using the
Endpoint.publish
method with addresses whose URL scheme is neither "http" nor "https".The success of the
Endpoint.publish
method is conditional to the presence of the appropriate permission as described in Section 5.2.3, “Publishing Permission”.Endpoint implementors MAY use the
WebServiceContext
facility (see Section 5.3, “jakarta.xml.ws.WebServiceContext”) to access the message context and other information about the request currently being served. Injection of theWebServiceContext
, if requested, MUST happen the first time the endpoint is published. After any injections have been performed and before any requests are dispatched to the implementor, the implementor method which carries ajakarta.annotation.PostConstruct
annotation, if present, MUST be invoked. Such a method MUST satisfy the requirements for lifecycle methods in Jakarta Annotations [35].5.2.2. Publishing
An
Endpoint
is in one of three states: not published (the default), published or stopped. Published endpoints are active and capable of receiving incoming requests and dispatching them to their implementor. Non published endpoints are inactive. Stopped endpoint were in the published until some time ago, then got stopped. Stopped endpoints cannot be published again. Publication of anEndpoint
can be achieved by invoking one of the following methods:publish(String address)
Publishes the endpoint at the specified address (a URL). The address MUST use a URL scheme compatible with the endpoint’s binding.
publish(Object serverContext)
Publishes the endpoint using the specified server context. The server context MUST contain address information for the resulting endpoint and it MUST be compatible with the endpoint’s binding.
◊ Conformance (Publishing over HTTP): If the
Binding
for anEndpoint
is a SOAP (see Chapter 10, SOAP Binding) or HTTP (see Chapter 11, HTTP Binding) binding, then an implementation MUST support publishing theEndpoint
to a URL whose scheme is either "http" or "https".The WSDL contract for an endpoint is created dynamically based on the annotations on the implementor class, the
Binding
in use and the set of metadata documents specified on the endpoint (see Section 5.2.4, “Endpoint Metadata”).◊ Conformance (WSDL Publishing): An
Endpoint
that uses the SOAP 1.1/HTTP binding (see Chapter 10, SOAP Binding) MUST make its contract available as a WSDL 1.1 document at the publishing address suffixed with "?WSDL" or "?wsdl".An
Endpoint
that uses any other binding defined in this specification in conjunction with the HTTP transport SHOULD make its contract available using the same convention. It is RECOMMENDED that an implementation provide a way to access the contract for an endpoint even when the latter is published over a transport other than HTTP.The success of the two
Endpoint.publish
methods described above is conditional to the presence of the appropriate permission as described in Section 5.2.3, “Publishing Permission”.Applications that wish to modify the configuration information (e.g. the metadata) for an
Endpoint
must make sure the latter is in the not-published state. Although the various setter methods onEndpoint
must always store their arguments so that they can be retrieved by a later invocation of a getter, the changes they entail may not be reflected on the endpoint until the next time it is published. In other words, the effects of configuration changes on a currently published endpoint are undefined.The
stop
method can be used to stop publishing an endpoint. A stopped endpoint may not be restarted. It is an error to invoke apublish
method on a stopped endpoint. After thestop
method returns, the runtime MUST NOT dispatch any further invocations to the endpoint’s implementor.An
Endpoint
will be typically invoked to serve concurrent requests, so its implementor should be written so as to support multiple threads. Thesynchronized
keyword may be used as usual to control access to critical sections of code. For finer control over the threads used to dispatch incoming requests, an application can directly set the executor to be used, as described in Section 5.2.7, “Executor”.5.2.2.1. Example
The following example shows the use of the
publish(Object)
method using a hypothetical HTTP server API that includes theHttpServer
andHttpContext
classes.// assume Test is an endpoint implementation class annotated with @WebService Test test = new Test(); HttpServer server = HttpServer.create(new InetSocketAddress(8080),10); server.setExecutor(Executor.newFixedThreadPool(10)); server.start(); HttpContext context = server.createContext("/test"); Endpoint endpoint = Endpoint.create(SOAPBinding.SOAP11HTTP_BINDING, test); endpoint.publish(context);Note that the specified server context uses its own executor mechanism. At runtime then, any other executor set on the
Endpoint
instance would be ignored by the Jakarta XML Web Services implementation.5.2.3. Publishing Permission
For security reasons, administrators may want to restrict the ability of applications to publish Web service endpoints. To this end, Jakarta XML Web Services defines a new permission class,
jakarta.xml.ws.WebServicePermission
, and one named permission,publishEndpoint
.◊ Conformance (Checking
publishEndpoint
Permission): When any of thepublish
methods defined by theEndpoint
class are invoked, an implementation MUST check whether aSecurityManager
is installed with the application. If it is, implementations MUST verify that the application has theWebServicePermission
identified by the target namepublishEndpoint
before proceeding. If the permission is not granted, implementations MUST NOT publish the endpoint and they MUST throw ajava.lang.SecurityException
.5.2.4. Endpoint Metadata
A set of metadata documents can be associated with an
Endpoint
by means of thesetMetadata(List<Source>)
method. By setting the metadata of anEndpoint
, an application can bypass the automatic generation of the endpoint’s contract and specify the desired contract directly. This way it is possible, e.g., to make sure that the WSDL or XML Schema document that is published contains information that cannot be represented using built-in Java annotations (see Chapter 7, Annotations).◊ Conformance (Required Metadata Types): An implementation MUST support WSDL 1.1 and XML Schema 1.0 documents as metadata.
◊ Conformance (Unknown Metadata): An implementation MUST ignore metadata documents whose type it does not recognize.
When specifying a list of documents as metadata, an application may need to establish references between them. For instance, a WSDL document may import one or more XML Schema documents. In order to do so, the application MUST use the
systemId
property of thejavax.xml.transform.Source
class by setting its value to an absolute URI that uniquely identifies it among all supplied metadata documents, then using the given URI in the appropriate construct (e.g.wsdl:import
orxsd:import
).5.2.5. Determining the Contract for an Endpoint
This section details how the annotations on the endpoint implementation class and the metadata for an endpoint instance are used at publishing time to create a contract for the endpoint.
Both the
WebService
andWebServiceProvider
annotations define awsdlLocation
annotation element which can be used to point to the desired WSDL document for the endpoint. If such an annotation element is present on the endpoint implementation class and has a value other than the default one (i.e. it is not the empty string), then a Jakarta XML Web Services implementation MUST use the document referred to from thewsdlLocation
annotation element to determine the contract, according to the rules in Section 5.2.5.3, “Use of@WebService(wsdlLocation)
and Metadata”.In addition to the case in which the
Endpoint
API is explicitly used, the requirements in this section are also applicable to the publishing of an endpoint via declarative means, e.g. in a servlet container. In this case, there may not be an equivalent for the notion of metadata as described in Section 5.2.4, “Endpoint Metadata”. In such an occurrence, the rules in this section MUST be applied using an empty set of metadata documents as the metadata for the endpoint.In the context of the Jakarta EE Platform, Jakarta Enterprise Web Services [17] defines deployment descriptor elements that may be used to override the value of the
wsdlLocation
annotation element. Please refer to that specification for more details.As we specify additional rules to be used in determining the contract for an endpoint, we distinguish two cases: that of a SEI-based endpoint (i.e. an endpoint that is annotated with a
WebService
annotation) and that of a Provider-based endpoint.5.2.5.1. SEI-based Endpoints
For publishing to succeed, a SEI-based endpoint MUST have an associated contract.
If the
wsdlLocation
annotation element is the empty string, then a Jakarta XML Web Services implementation must obey the following rules, depending on the binding used by the endpoint:SOAP 1.1/HTTP Binding A Jakarta XML Web Services implementation MUST generate a WSDL description for the endpoint based on the rules in Section 5.2.5.3, “Use of
@WebService(wsdlLocation)
and Metadata” below.
A Jakarta XML Web Services implementation MUST NOT generate a WSDL description for the endpoint.
A Jakarta XML Web Services implementation MUST NOT generate a WSDL description for the endpoint.
A Jakarta XML Web Services implementation MAY generate a WSDL description for the endpoint.
This requirements guarantee that future versions of this specification may mandate support for additional WSDL binding in conjunction with the predefined binding identifiers without negatively affecting existing applications.
Provider-based endpoints SHOULD have a non-empty wsdlLocation
pointing
to a valid WSDL description of the endpoint.
If the wsdlLocation
annotation element is the empty string, then a
Jakarta XML Web Services implementation MUST NOT generate a WSDL description for the
endpoint.
@WebService(wsdlLocation)
and MetadataA WSDL document contains two different kinds of information: abstract
information (i.e. portTypes and any schema-related information) which
affects the format of the messages and the data being exchanged, and
binding-related one (i.e. bindings and ports) which affects the choice
of protocol and transport as well as the on-the-wire format of the
messages. Annotations (see Chapter 7, Annotations) are provided to capture the
former aspects but not the latter. (The @SOAPBinding
annotation is a
bit of a hybrid, because it captures the signature-related aspects of
the soap:binding
binding extension in WSDL 1.1.)
At runtime, annotations must be followed for all the abstract aspects of
an interaction, but binding information has to come from somewhere else.
Although the choice of binding is made at the time an endpoint is
created, this specification does not attempt to capture all possible
binding properties in its APIs, since the extensibility of WSDL would
make it a futile exercise. Rather, when an endpoint is published, a
description for it, if present, is consulted to determine binding
information, using the wsdl:service
and wsdl:port
qualified names as
a key.
In terms of priority, the description specified using the wsdlLocation
annotation element, if present, comes first, and the metadata documents
are secondary. In the absence of a non-empty, non-default wsdlLocation
annotation element, the metadata documents are consulted to identify as
many description components as possible that can be reused when
producing the contract for the endpoint.
There are some restrictions on the packaging of the description and any associated metadata documents. The goal of these restrictions is to make it possible to publish an endpoint without forcing a Jakarta XML Web Services implementation to retrieve, store and patch multiple documents from potentially remote sites.
The value of the wsdlLocation
annotation element on an endpoint
implementation class, if any, MUST be a relative URL. The document it
points to MUST be packaged with the application. Moreover, it MUST
follow the requirements in Section 5.2.5.4, “Application-specified Service” below
("Application-specified Service").
In the Java SE platform, relative URLs are treated as resources. When running on the Jakarta EE platform, the dispositions in the Jakarta Enterprise Web Services specification apply.
For ease of identification, let’s call this document the "root description document", to distinguish it from any WSDL documents it might import.
At publishing time, a Jakarta XML Web Services implementation MUST patch the endpoint address in the root description document to match the actual address the endpoint is deployed at.
In order to state the requirements for patching the locations of any
wsdl:import
-ed or xsd:import
-ed documents, let’s define a document
as being local if and only if
it is reachable from a local document via an import statement whose
location is either a relative URL or an absolute URL for which there is
a corresponding metadata document (i.e. a Source
object which is a
member of the list of metadata documents and whose systemId
property
is equal to the URL in question).
A Jakarta XML Web Services implementation MUST patch the location attributes of all
wsdl:import
and xsd:import
statement in local documents that point
to local documents. An implementation MUST NOT patch any other location
attributes.
Please note that, although the catalog facility (see Section 4.4, “Catalog Facility”)
is used to resolve any absolute URLs encountered while processing the
root description document or any documents transitively reachable from
it via wsdl:import
and xsd:import
statements, those absolute URLs
will not be rewritten when the importing document is published, since
documents resolved via the catalog are not considered local, even if the
catalog maps them to resources packaged with the application.
In what follows, for better readability, the term "metadata document"
should be interpreted as also covering the description document pointed
to by the wsdlLocation
annotation element (if any), while keeping in
mind the processing rules in the preceding paragraphs.
As a guideline, the generated contract must reuse as much as possible the set of metadata documents provided by the application. In order to simplify an implementor’s task, this specification requires that only a small number of well-defined scenarios in which the application provides metadata documents be supported.
Implementations MAY support other use cases, but they MUST follow the general rule that any application-provided metadata element takes priority over an implementation-generated one, with the exception of the overriding of a port address.
For instance, if the application-provided metadata contains a definition for portType foo that in no case should the Jakarta XML Web Services implementation create its own foo portType to replace the one provided by the application in the final contract for the endpoint.
The exception to using a metadata document as supplied by the
application without any modifications is the address of the wsdl:port
for the endpoint, which MUST be overridden so as to match the address
specified as an argument to the publish
method or the one implicit in
a server context.
When publishing the main WSDL document for an endpoint, an
implementation MUST ensure that all references between documents are
correct and resolvable. This may require remapping the metadata
documents to URLs different from those set as their systemId
property.
The renaming MUST be consistent, in that the "imports" and
"includes" relationships existing between documents when the metadata
was supplied to the endpoint MUST be respected at publishing time.
Moreover, the same metadata document SHOULD NOT be published at
multiple, different URLs.
When resolving URI references to other documents when processing metadata documents or any of the documents they may transitively reference, a Jakarta XML Web Services implementation MUST use the catalog facility defined in Section 4.4, “Catalog Facility”, except when there is a metadata document whose system id matches the URI in question. In other words, metadata documents have priority over catalog-based mappings.
The scenarios which are required to be supported are the following:
One of the metadata documents, say D, contains a definition for a WSDL service whose qualified name , say S, matches that specified by the endpoint being published. In this case, a Jakarta XML Web Services implementation MUST use D as the service description. No further generation of contract-related artifacts may occur.
Table 3. StandardEndpoint
properties.
The implementation MUST also
override the port address in D and the location
and schemaLocation
attributes as detailed in the preceding paragraphs. It is an error if
more than one metadata document contains a definition for the
sought-after service S.
No metadata document contains a definition for the sought-after service
S, but a metadata document, say D, contains a definition for the
WSDL portType whose qualified name, say P, matches that specified by
the endpoint being published. In this case, a Jakarta XML Web Services implementation MUST
create a new description for S, including an appropriate WSDL binding
element referencing portType P. The metadata document D MUST be
imported/included so that the published contract uses the definition of
P provided by D. No schema generation occurs,as P is assumed to
embed or import schema definitions for all the types/elements it
requires. Like in the previous case, the implementation MUST override
any location
and schemaLocation
attributes. It is an error if more
than one metadata document contains a definition for the sought-after
portType P.
No metadata document contains a definition for the sought-after service
S and portType P. In this case, a Jakarta XML Web Services implementation MUST
generate a complete WSDL for S. When it comes to generating a schema
for a certain target namespace, say T, the implementation MUST reuse
the schema for T among the available metadata documents, if any. Like
in the preceding case, the implementation MUST override any
schemaLocation
attributes. It is an error if more than one schema
documents specified as metadata for the endpoint attempt to define
components in a namespace T used by the endpoint.
The three scenarios described above cover several applicative use cases. The first one represents an application that has full control over all aspects of the contract. The Jakarta XML Web Services runtime just uses what the application provided, with a minimum of adjustments to ensure consistency. The second one corresponds to an application that defines all abstract aspects of the WSDL, i.e. portType(s) and schema(s), leaving up to the Jakarta XML Web Services runtime to generate the concrete portions of the contract. Finally, the third case represents an application that uses one or more well-known schema(s), possibly taking advantage of lots of facets/constraints that Jakarta XML Binding cannot capture, and wants to reuse it as-is, leaving all the WSDL-specific aspects of the contract up to the runtime. This use case also covers an application that does not specify any metadata, leaving WSDL and schema generation up to the Jakarta XML Web Services (and Jakarta XML Binding) implementation.
An Endpoint
has an associated set of properties that may be read and
written using the getProperties
and setProperties
methods
respectively.
Table 3, “Standard Endpoint
properties.” lists the set of standard Endpoint
properties.
When present, the WSDL-related properties override the values specified
using the WebService
and WebServiceProvider
annotations. This
functionality is most useful with provider objects (see
Section 7.7, “jakarta.xml.ws.WebServiceProvider”), since the latter are naturally more suited to a
more dynamic usage. For instance, an application that publishes a
provider endpoint can decide at runtime which web service to impersonate
by using a combination of metadata documents and the properties
described in this section.
Endpoint
instances can be configured with a
java.util.concurrent.Executor
. The executor will then be used to
dispatch any incoming requests to the application. The setExecutor
and
getExecutor
methods of Endpoint
can be used to modify and retrieve
the executor configured for a service.
◊ Conformance (Use of Executor): If an executor object is successfully set on an
Endpoint
via the setExecutor
method, then an implementation MUST use
it to dispatch incoming requests upon publication of the Endpoint
by
means of the publish(String address)
method. If publishing is carried
out using the publish(Object serverContext)
) method, an implementation
MAY use the specified executor or another one specific to the server
context being used.
◊ Conformance (Default Executor): If an executor has not been set on an Endpoint
, an
implementation MUST use its own executor, a
java.util.concurrent.ThreadPoolExecutor
or analogous mechanism, to
dispatch incoming requests.
The following methods can be used on a published Endpoint
to retrieve
an jakarta.xml.ws.EndpointReference
for the Endpoint
instance.
getEndpointReference(List<Element> referenceParameters)
Creates and returns and jakarta.xml.ws.EndpointReference
for a
published Endpoint
. If the binding is SOAP 1.1/HTTP or SOAP
1.2/HTTP, then a jakarta.xml.ws.wsaddressing.W3CEndpointReference
MUST
be returned. A returned W3CEndpointReference
MUST also contain the
specified referenceParameters
. An implementation MUST throw a
jakarta.xml.ws.WebServiceException
if the Endpoint
instance has not
been published. An implementation MUST throw
java.lang.UnsupportedOperationException
if the Endpoint
instance
uses the XML/HTTP binding.
getEndpointReference(Class<T> clazz, List<Element> referenceParameters)
Creates and returns and jakarta.xml.ws.EndpointReference
of type
clazz
for a published Endpoint
instance. If clazz
is of type
jakarta.xml.ws.wsaddressing.W3CEndpointReference
, then the returned
W3CEndpointReference
MUST contain the specified
referenceParameters
. An implementation MUST throw a
jakarta.xml.ws.WebServiceException
if the Endpoint
instance has not
been published. If the Class clazz
is not a subclass of
EndpointReference
or the Endpoint
implementation does not support
EndpointReferences
of type clazz
a
jakarta.xml.ws.WebServiceException
MUST be thrown. An implementation
MUST throw java.lang.UnsupportedOperationException
if the Endpoint
instance uses the XML/HTTP binding.
◊ Conformance (Endpoint
’s W3CEndpointReference
):
The returned W3EndpointReference
MUST contain wsam:ServiceName
and wsam:ServiceName[@EndpointName]
as
per Addressing 1.0 - Metadata[27]. The
wsam:InterfaceName
MAY be present in the W3CEndpointReference
. If
there is an associated WSDL, then the WSDL location MUST be referenced
using wsdli:wsdlLocation
in the W3CEndpointReference
’s
wsa:Metadata
.
The jakarta.xml.ws.WebServiceContext
interface makes it possible for an
endpoint implementation object and potentially any other objects that
share its execution context to access information pertaining to the
request being served.
The result of invoking any methods on the WebServiceContext
of a
component outside the invocation of one of its web service methods is
undefined. An implementation SHOULD throw a
java.lang.IllegalStateException
if it detects such a usage.
The WebServiceContext
is treated as an injectable resource that can be
set at the time an endpoint is initialized. The WebServiceContext
object will then use thread-local information to return the correct
information regardless of how many threads are concurrently being used
to serve requests addressed to the same endpoint object.
In Java SE, the resource injection denoted by the WebServiceContext
annotation is REQUIRED to take place only when the annotated class is an
endpoint implementation class.
The following code shows a simple endpoint implementation class which
requests the injection of its WebServiceContext
:
The jakarta.annotation.Resource
annotation defined by Jakarta Annotations [35]
is used to request injection of the WebServiceContext
. The
following constraints apply to the annotation elements of a Resource
annotation used to inject a WebServiceContext
:
The type
element MUST be either java.lang.Object
(the default) or
jakarta.xml.ws.WebServiceContext
. If the former, then the resource MUST
be injected into a field or a method. In this case, the type of the
field or the type of the JavaBeans property defined by the method MUST
be jakarta.xml.ws.WebServiceContext
.
The authenticationType
, shareable
elements, if they appear, MUST
have their respective default values.
The above restriction on type
guarantees that a resource type of
WebServiceContext
is either explicitly stated or can be inferred from
the annotated field/method declaration. Moreover, the field/method type
must be assignable from the type described by the annotation’s type
element.
When running on the Java SE platform, the name
and mappedName
elements are ignored. As a consequence, on Java SE there is no point in
declaring a resource of type WebServiceContext
on the endpoint class
itself (instead of one of its fields/methods), since it won’t be
accessible at runtime via JNDI.
When running on the Jakarta EE platform, resources of type
WebServiceContext
are treated just like all other injectable resources
there and are subject to the constraints prescribed by the platform
specification [36].
An endpoint implementation can retrieve an
jakarta.xml.ws.EndpointReference
for the endpoint using
getEndpointReference(List<Element> referenceParameters)
, and
getEndpointReference( Class<T> clazz, List<Element> referenceParameters)
methods. These methods have the same semantics as the
Endpoint.getEndpointReference()
methods specified in the Section 5.2.8, “jakarta.xml.ws.EndpointReference”.
When using method-based injection, it is recommended that the method be
declared as non-public, otherwise it will be exposed as a web service
operation. Alternatively, the method can be marked with the
@WebMethod(exclude=true)
annotation to ensure it will not
be part of the generated portType for the service.
The message context made available to endpoint instances via the
WebServiceContext
acts as a restricted window on to the
MessageContext
of the inbound message following handler execution (see Chapter 9, Handler Framework).
The restrictions are as follows:
Only properties whose scope is APPLICATION
are visible using a
MessageContext
obtained from a WebServiceContext
; the get
method
returns null
for properties with HANDLER
scope, the Set
returned
by keySet
only includes properties with APPLICATION
scope.
New properties set in the context are set in the underlying
MessageContext
with APPLICATION
scope.
An attempt to set the value of property whose scope is HANDLER
in
the underlying MessageContext
results in an IllegalArgumentException
being thrown.
Only properties whose scope is APPLICATION
can be removed using the
context. An attempt to remove a property whose scope is HANDLER
in the
underlying MessageContext
results in an IllegalArgumentException
being thrown.
The Map.putAll
method can be used to insert multiple properties at
once. Each property is inserted individually, each insert operation
being carried out as if enclosed by a try/catch block that traps any
IllegalArgumentException
. Consequently, putAll
is not atomic: it
silently ignores properties whose scope is HANDLER
and it never throws
an IllegalArgumentException
.
The MessageContext
is used to store handlers information between
request and response phases of a message exchange pattern, restricting
access to context properties in this way ensures that endpoint
implementations can only access properties intended for their use.
Occasionally it is necessary for one application component to create an
EndpointReference
for another web service endpoint. The
W3CEndpointReferenceBuilder
class provides a standard API for creating
W3CEndpointReference
instances for web service endpoints.
◊ Conformance (Building W3CEndpointReference): W3CEndpointReferenceBuilder.build()
method MUST construct an EndpointReference
as per the Addressing 1.0 -
Metadata[27].
This chapter describes the standard core APIs that may be used by both client and server side applications.
The jakarta.xml.ws.Binding
interface acts as a base interface for Jakarta XML Web Services
protocol bindings. Bindings to specific protocols extend Binding
and
may add methods to configure specific aspects of that protocol binding’s
operation. Chapter 10, SOAP Binding describes the Jakarta XML Web Services SOAP binding;
Chapter 11, HTTP Binding describes the Jakarta XML Web Services XML/HTTP binding.
Applications obtain a Binding
instance from a BindingProvider
(a
proxy or Dispatch
instance) or from an Endpoint
using the
getBinding
method (see Section 4.2, “jakarta.xml.ws.BindingProvider”, Section 5.2, “jakarta.xml.ws.Endpoint”).
A concrete binding is identified by a binding id, i.e. a URI. This specification defines a number of standard bindings and their corresponding identifiers (see Chapter 10, SOAP Binding and Chapter 11, HTTP Binding). Implementations MAY support additional bindings. In order to minimize conflicts, the identifier for an implementation-specific binding SHOULD use a URI scheme that includes a domain name or equivalent, e.g. the "http" URI scheme. Such identifiers SHOULD include a domain name controlled by the implementation’s vendor.
Binding
provides methods to manipulate the handler chain configured on
an instance (see Section 9.2.1, “Programmatic Configuration”).
◊ Conformance (Read-only handler chains): An implementation MAY prevent changes to
handler chains configured by some other means (e.g. via a deployment
descriptor) by throwing UnsupportedOperationException
from the
setHandlerChain
method of Binding
Provider
is an abstract service provider interface (SPI) factory class
that provides various methods for the creation of Endpoint
instances
and ServiceDelegate
instances. These methods are designed for use by
other Jakarta XML Web Services API classes, such as Service
(see Section 4.1, “jakarta.xml.ws.Service”) and
Endpoint
(see Section 5.2, “jakarta.xml.ws.Endpoint”) and are not intended to be called directly
by applications.
The Provider
SPI allows an application to use a different Jakarta XML Web Services
implementation from the one bundled with the platform without any code
changes.
◊ Conformance (Concrete jakarta.xml.ws.spi.Provider
required):
An implementation MUST
provide a concrete class that extends jakarta.xml.ws.spi.Provider
. Such
a class MUST have a public constructor which takes no arguments.
The Provider
implementation class is determined using the following
algorithm. The steps listed below are performed in sequence. At each
step, at most one candidate implementation class name will be produced.
The implementation will then attempt to load the class with the given
class name using the current context class loader or, if missing one,
the java.lang.Class.forName(String)
method. As soon as a step results
in an implementation class being successfully loaded, the algorithm
terminates.
Use the service-provider loading facilities, defined by the
java.util.ServiceLoader
class, to attempt to locate and load an
implementation of jakarta.xml.ws.spi.Provider
service using the default
loading mechanism .
Use the configuration file jaxws.properties
. The file is in
standard java.util.Properties
format and typically located in the conf
directory of the Java installation. It contains the fully qualified name
of the implementation class with the key jakarta.xml.ws.spi.Provider
.
If a system property with the name jakarta.xml.ws.spi.Provider
is
defined, then its value is used as the name of the implementation class.
Finally, a platform implementation is used.
Creates and
returns an Endpoint
for the specified binding and implementor. If the
bindingId is
null
and no binding information is specified via the
jakarta.xml.ws.BindingType
annotation then a default SOAP1.1/HTTP
binding MUST be used.
createEndpoint(String bindingID, Object implementor, WebServiceFeature … features)
Same as the above createEndpoint()
method. The created Endpoint
is
configured with the web service features.
createAndPublishEndpoint(String address, Object implementor)
Creates
and publishes an Endpoint
for the given implementor. The binding is
chosen by default based on the URL scheme of the provided address (which
must be a URL). If a suitable binding if found, the endpoint is created
then published as if the Endpoint.publish(String address)
method had
been called. The created Endpoint
is then returned as the value of the
method.
createAndPublishEndpoint(String address, Object implementor, WebServiceFeature … features)
Same as the above createAndPublishEndpoint()
method. The created
Endpoint
is configured with the web service features.
createEndpoint(String bindingId, Class<?> implementorClass, Invoker invoker, WebServiceFeature … features)
Creates an Endpoint for the implementor class and the endpoint
invocation is handled by the Invoker
. If the bindingId is null and no
binding information is specified via the jakarta.xml.ws.BindingType
annotation then a default SOAP1.1/HTTP binding MUST be used. The created
Endpoint
is configured with the web service features.
an instance of a SEI-based endpoint class, i.e. a class annotated with
the @WebService
annotation according to the rules in Chapter 3, Java to WSDL 1.1 Mapping, or
an instance of a provider class, i.e. a class implementing the
Provider
interface and annotated with the @WebServiceProvider
annotation according to the rules in Section 5.1, “jakarta.xml.ws.Provider”.
The createAndPublishEndpoint(String,Object)
method is provided as a
shortcut for the common operation of creating and publishing an
Endpoint
. It corresponds to the static publish
method defined on the
Endpoint
class, see Section 5.2.1, “Endpoint Usage”.
◊ Conformance (Provider createAndPublishEndpoint Method): The effect of invoking the
createAndPublishEndpoint
method on a Provider
MUST be the same as
first invoking the createEndpoint
method with the binding ID
appropriate to the URL scheme used by the address, then invoking the
publish(String address)
method on the resulting endpoint
.
jakarta.xml.ws.spi.ServiceDelegate
Section 6.3, “jakarta.xml.ws.spi.ServiceDelegate” can be created
using the following methods on Provider
:
createServiceDelegate(URL wsdlDocumentLocation, QName serviceName, Class <? extends Service> serviceClass)
Creates and returns a ServiceDelegate
for the specified service. When
starting from WSDL the serviceClass will be the generated service class
as described in Section 2.7, “Service and Port”. In the dynamic case where there is
no service class generated it will be jakarta.xml.ws.Service
. The
serviceClass is used by the ServiceDelegate
to get access to the
annotations.
createServiceDelegate(URL wsdlDocumentLocation, QName serviceName, Class <? extends Service> serviceClass, WebServiceFeature … features)
Same as the above createServiceDelegate()
method and it also
configures the delegate with all the web service features.
readEndpointReference(javax.xml.transform.Source source)
Unmarshalls and returns a jakarta.xml.ws.EndpointReference
from the infoset contained in source
.
createW3CEndpointReference(String address, QName serviceName, QName portName, List<Element> metadata, String wsdlDocumentLocation, List<Element> referenceParameters)
Creates a W3CEndpointReference
using
the specified String address
, QName serviceName
, QName portName
,
List<Element> metadata
, String wsdlDocumentLocation
, and
List<Element> referenceParameters
parameters.
createW3CEndpointReference(String address, QName interfaceName, QName serviceName, QName portName, List<Element> metadata, String wsdlDocumentLocation, List<Element> referenceParameters, List<Element> elements, Map<QName, String> attributes)
Creates W3CEndpointReference using the specified parameters. This method adds support for extension elements, extension attributes, and porttype name.
getPort(EndpointReference epr, Class<T> sei, WebServiceFeature… features)
Gets a proxy for the sei
that can be used to invoke operations on
the endpoint referred to by the epr
. The specified features
MUST
be enabled/disabled and configured as specified. The returned proxy
MUST use the epr
to determine the endpoint address and any reference
parameters that MUST be sent on endpoint invocations. The epr
MUST
NOT be used directly as the value of an WS-Addressing header such as
wsa:ReplyTo
.
The jakarta.xml.ws.spi.ServiceDelegate
class is an abstract class that
implementations MUST provide. This is the class that
jakarta.xml.ws.Service
Section 4.1, “jakarta.xml.ws.Service” class delegates all methods, except
the static create
methods to. ServiceDelegate is defined as an
abstract class for future extensibility purpose.
◊ Conformance (Concrete jakarta.xml.ws.spi.ServiceDelegate
required):
An implementation MUST provide a concrete class that extends
jakarta.xml.ws.spi.ServiceDelegate
.
The following standard exceptions are defined by Jakarta XML Web Services.
jakarta.xml.ws.WebServiceException
A runtime exception that is thrown by methods in Jakarta XML Web Services APIs when errors occur during local processing.
jakarta.xml.ws.ProtocolException
A base class for exceptions related to a specific protocol binding. Subclasses are used to communicate protocol level fault information to clients and may be used by a service implementation to control the protocol specific fault representation.
jakarta.xml.ws.soap.SOAPFaultException
A subclass of ProtocolException
, may be used to carry SOAP specific
information.
jakarta.xml.ws.http.HTTPException
A subclass of ProtocolException
, may be used to carry HTTP specific
information.
A future version of this specification may introduce a new exception class to distinguish errors due to client misconfiguration or inappropriate parameters being passed to an API from errors that were generated locally on the sender node as part of the invocation process (e.g. a broken connection or an unresolvable server name). Currently, both kinds of errors are mapped to WebServiceException, but the latter kind would be more usefully mapped to its own exception type, much like ProtocolException is.
◊ Conformance (Protocol specific fault generation): When throwing an exception as the
result of a protocol level fault, an implementation MUST ensure that the
exception is an instance of the appropriate ProtocolException
subclass. For SOAP the appropriate ProtocolException
subclass is
SOAPFaultException
, for XML/HTTP is is HTTPException
.
◊ Conformance (Protocol specific fault consumption): When an implementation catches an
exception thrown by a service endpoint implementation and the cause of
that exception is an instance of the appropriate ProtocolException
subclass for the protocol in use, an implementation MUST reflect the
information contained in the ProtocolException
subclass within the
generated protocol level fault.
try { response = dispatch.invoke(request); } catch (SOAPFaultException e) { QName soapFaultCode = e.getFault().getFaultCodeAsQName(); if (someProblem) { SOAPFault fault = soapBinding.getSOAPFactory().createFault( faultcode, faultstring, faultactor, detail); throw new SOAPFaultException(fault);6.4.1.3. One-way Operations
◊ Conformance (One-way operations): When sending a one-way message, implementations MUST throw a
WebServiceException
if any error is detected when sending the message.6.5. jakarta.xml.ws.WebServiceFeature
Jakarta XML Web Services introduces the notion of features. A feature is associated with a particular functionality or behavior. Some features may only have meaning when used with certain bindings while other features may be generally useful. These features can be used while creating service and proxy instances. Jakarta XML Web Services introduces three standard features for creating proxy instances,
AddressingFeature
,MTOMFeature
andRespectBindingFeature
as well as the baseWebServiceFeature
class. There are no standard features for service creation in the current specification. A Jakarta XML Web Services implementation may define its own features but they will be non-portable across all Jakarta XML Web Services implementations.Each feature is derived from the
jakarta.xml.ws.WebServiceFeature
class. This allows the web service developer to pass different types ofWebServiceFeatures
to the various Jakarta XML Web Services APIs that utilize them. Also, each feature should be documented using JavaDocs on the derived classes. EachWebServiceFeature
MUST have apublic static final String ID
field that is used to uniquely identify the feature.◊ Conformance (
jakarta.xml.ws.WebServiceFeatures
): Each derived type ofjakarta.xml.ws.WebServiceFeature
MUST contain apublic static final String ID
field that uniquely identifies the feature against all features of all implementations.Since vendors can specify their own features, care MUST be taken when creating a feature ID so as to not conflict with another vendor’s ID.
The
WebServiceFeature
class also has anenabled
property that is used to store whether a particular feature should be enabled or disabled. Each derived type should provide either a constructor argument and/or a method that will allow the web service developer to set theenabled
property. The meaning of enabled or disabled is determined by each individualWebServiceFeature
. It is important that web services developers be able to enable/disable specific features when writing their web applications. For example, a developer may choose to implement WS-Addressing himself while using the Dispatch and Provider APIs and thus he MUST be able to tell Jakarta XML Web Services to disable addressing.◊ Conformance (
enabled
property): Each derived type ofjakarta.xml.ws.WebServiceFeature
MUST provide a constructor argument and/or method to allow the web service developer to set the value of theenabled
property. The public default constructor MUST by default set theenabled
property totrue
. An implementation MUST honor the value of theenabled
property of any supportedWebServiceFeature
.6.5.1. jakarta.xml.ws.soap.AddressingFeature
The
AddressingFeature
is used to control the use of WS-Addressing[26] by Jakarta XML Web Services. This feature MUST be supported with the SOAP 1.1/HTTP or SOAP 1.2/HTTP bindings. Using this feature with any other binding is undefined. This feature corresponds to the Addressing annotation described in Section 7.14.1, “jakarta.xml.ws.soap.Addressing”.Enabling this feature on the server will result in the runtime being capable of consuming and responding to WS-Addressing headers.
Enabling this feature on the client will cause the Jakarta XML Web Services runtime to include WS-Addressing headers in SOAP messages as specified by WS-Addressing[26].
Disabling this feature will prevent a Jakarta XML Web Services runtime from processing or adding WS-Addressing headers from/to SOAP messages even if the associated WSDL specifies otherwise. This may be necessary if a client or endpoint needs to implement Addressing themselves. For example, a client that desires to use non-anonymous ReplyTo can do so by disabling the
AddressingFeature
and by usingDispatch<Source>
withMessage
mode.The
AddressingFeature
’srequired
property can be configured to control whether all incoming messages MUST contain Addressing headers.The
AddressingFeature
’sresponses
property can be configured to control whether the endpoint requires the use of anonymous, non-anonymous and all responses.This feature is automatically enabled if the WSDL indicates the use of addressing as per the WS-Addressing 1.0 - Metadata[27]. Developers may choose to prevent this from happening by explicitly disabling the
AddressingFeature
.6.5.1.1. jakarta.xml.ws.EndpointReference
The abstract
EndpointReference
class is used by the Jakarta XML Web Services APIs to reference a particular endpoint in accordance with the W3C Web Services Addressing 1.0[26]. Each concrete instance of anEndpointReference
MUST contain awsa:Address
.Applications may also use the
EndpointReference
class in method signatures. Jakarta XML Binding will bind theEndpointReference
base class toxs:anyType
. Applications should instead use concrete implementations ofEndpointReference
such asjakarta.xml.ws.W3CEndpointReference
which will provide better binding. Jakarta XML Web Services implementations are required to support theW3CEndpointReference
class but they may also provide otherEndpointReference
subclasses that represent different versions of Addressing.6.5.1.2. jakarta.xml.ws.W3CEndpointReference
The
W3CEndpointReference
class is a concrete implementation of thejakarta.xml.ws.EndpointReference
class and is used to reference endpoints that are compliant with the W3C Web Services Addressing 1.0 - Core[26] recommendation. Applications may use this class to passEndpointReference
instances as method parameters or return types. Jakarta XML Binding will bind theW3CEndpointReference
class to the W3C EndpointReference XML Schema in the WSDL.6.5.2. jakarta.xml.ws.soap.MTOMFeature
The
MTOMFeature
is used to specify if MTOM should be used with a web service. This feature should be used instead of thejakarta.xml.ws.soap.SOAPBinding.SOAP11HTTP_MTOM_BINDING
,jakarta.xml.ws.soap.SOAPBinding.SOAP12HTTP_MTOM_BINDING
and thejakarta.xml.ws.soap.SOAPBinding.setMTOMEnabled()
. This feature MUST be supported with the SOAP 1.1/HTTP or SOAP 1.2/HTTP bindings. Using this feature with any other bindings is undefined. This feature corresponds to theMTOM
annotation described in Section 7.14.2, “jakarta.xml.ws.soap.MTOM”.Enabling this feature on either the server or client will result the Jakarta XML Web Services runtime using MTOM and for binary data being sent as an attachment.
The
MTOMFeature
has one propertythreshold
, that can be configured to serve as a hint for which binary data SHOULD be sent as an attachment. Thethreshold
is the size in bytes that binary data SHOULD be in order to be sent as an attachment. Thethreshold
MUST not be negative. The default value is0
.◊ Conformance (
jakarta.xml.ws.soap.MTOMFeature
): An implementation MUST support thejakarta.xml.ws.soap.MTOMFeature
and itsthreshold
property.6.5.3. jakarta.xml.ws.RespectBindingFeature
The
RespectBindingFeature
is used to control whether a Jakarta XML Web Services implementation MUST respect/honor the contents of thewsdl:binding
associated with an endpoint. It has a correspondingRespectBinding
annotation described in Section 7.14.3, “jakarta.xml.ws.RespectBinding”.◊ Conformance (
jakarta.xml.ws.RespectBindingFeature
): When thejakarta.xml.ws.RespectBindingFeature
is enabled, a Jakarta XML Web Services implementation MUST inspect thewsdl:binding
at runtime to determine result and parameter bindings as well as anywsdl:extensions
that have therequired="true"
attribute. All requiredwsdl:extensions
MUST be supported and honored by a Jakarta XML Web Services implementation unless a specificwsdl:extension
has be explicitly disabled via aWebServiceFeature
.When this feature is enabled, a Jakarta XML Web Services implementation must support and honor the addressing policy, if specified, in the WSDL. However, such addressing requirements can be explicitly disabled via
AddressingFeature
.In order to not break backward compatibility with JAX-WS 2.0, the behavior with regards to respecting the
wsdl:binding
when this feature is disabled is undefined.6.6. jakarta.xml.ws.spi.http (HTTP SPI)
The classes in this package can be used for a portable deployment of Jakarta XML Web Services web services in a HTTP container (for example, servlet container). This SPI enables to decouple the Jakarta XML Web Services deployment and runtime and is not meant for end developers but for container or its extension developers.
The HTTP SPI allows a deployment to use any available web services runtime for HTTP transport.
The HTTP SPI consists of the following classes:
jakarta.xml.ws.spi.http.HttpContext
HttpContext
represents a mapping between the root URI path of a web service to aHttpHandler
which is invoked to handle requests destined for that path on the associated container.jakarta.xml.ws.spi.http.HttpExchange
This class encapsulates a HTTP request received and a response to be generated in one exchange.
jakarta.xml.ws.spi.http.HttpHandler
A handler which is invoked to process HTTP exchanges.
jakarta.xml.ws.spi.Invoker
Invoker
hides the detail of calling into application endpoint implementation.Container creates Endpoint objects for an application. The necessary information to create
Endpoint
objects may be got from web service deployment descriptor files.Container creates
HttpContext
objects for the deployment. For example, aHttpContext
could be created using servlet configuration(for e.g. url-pattern) for a web service in servlet container case.Then publishes all the endpoints using
Endpoint.publish(HttpContext)
. Duringpublish()
, Jakarta XML Web Services runtime registers aHttpHandler
callback to handle incoming requests orHttpExchange
objects. TheHttpExchange
object encapsulates HTTP request and response.Container Jakarta XML Web Services runtime --------- -------------- 1. Creates Invoker1, ... InvokerN 2. Provider.createEndpoint(...) --> 3. creates Endpoint1 configures Endpoint1 4. Provider.createEndpoint(...) --> 5. creates EndpointN configures EndpointN 6. Creates EndpointContext with Endpoint1, ..., EndpointN and sets it on all endpoints. 7. creates HttpContext1, ... HttpContextN 8. Endpoint1.publish(HttpContext1) --> 9. creates HttpHandler1 HttpContext1.setHandler(HttpHandler1) 10. EndpointN.publish(HttpContextN) --> 11. creates HttpHandlerN HttpContextN.setHandler(HttpHandlerN)Typical request processing is done as below(for every request):
Container Jakarta XML Web Services runtime --------- -------------- 1. Creates a HttpExchange 2. Gets handler from HttpContext 3. HttpHandler.handle(HttpExchange) --> 4. reads request from HttpExchange <-- 5. Calls Invoker 6. Invokes the actual instance 7. Writes the response to HttpExchangeTypical portable undeployment is done as below:
Container Jakarta XML Web Services runtime --------- -------------- 1. @preDestroy on instances 2. Endpoint1.stop() 3. EndpointN.stop()For simplicity, when describing an annotation we use the term "property" in lieu of the more correct "annotation elements". Also, for each property we list the default value, which is the default as it appears in the declaration of the annotation type. Often properties have logical defaults which are computed based on contextual information and, for this reason, cannot be captured using the annotation element default facility built into the language. In this case, the text describes what the logical default is and how it is computed.
Jakarta XML Web Services uses annotations extensively. For an annotation to be correct, besides being syntactically correct, e.g. placed on a program element of the appropriate type, it must obey a set of constraints detailed in this specification. For annotations defined by Jakarta XML Web Services Metadata, the annotation in question must also obey the constraints in the relevant specification (see [16]).
◊ Conformance (Correctness of annotations): An implementation MUST check at runtime that the annotations pertaining to a method being invoked, either on the client or on the server, as well as any containing program elements (i.e. classes, packages) is in conformance with the specification for that annotation
◊ Conformance (Handling incorrect annotations): If an incorrect or inconsistent annotation is detected:
In a client setting, an implementation MUST NOT invoke the remote operation being invoked, if any. Instead, it MUST throw a
WebServiceException
, setting its cause to an exception approximating the cause of the error (e.g. anIllegalArgumentException
or aClassNotFoundException
).In a server setting, annotation, an implementation MUST NOT dispatch to an endpoint implementation object. Rather, it MUST generate a fault appropriate to the binding in use.
◊ Conformance (Unsupported
WebServiceFeatureAnnotation
): If an unrecongnized or unsupported annotation annotated with theWebServiceFeatureAnnotation
meta-annotation:In a client setting, an implementation MUST NOT invoke the remote operation being invoked, if any. Instead, it MUST throw a
WebServiceException
, setting its cause to an exception approximating the cause of the error (e.g. anIllegalArgumentException
or aClassNotFoundException
).In a server setting, annotation, an implementation MUST NOT dispatch to an endpoint implementation object. Rather, it MUST generate a fault appropriate to the binding in use.
An implementation may check for correctness in a lazy way, at the time a method is invoked or a request is about to be dispatched to an endpoint, or more aggressively, e.g. when creating a proxy. In a container environment, an implementation may perform any correctness checks at deployment time.
7.1. jakarta.xml.ws.ServiceMode
The
Table 4.ServiceMode
annotation is used to specify the mode for a provider class, i.e. whether a provider wants to have access to protocol message payloads (e.g. a SOAP body) or the entire protocol messages (e.g. a SOAP envelope).ServiceMode
properties.The service mode, one of jakarta.xml.ws.Service.Mode. MESSAGE or jakarta.xml.ws.Service.Mode.PAYLOAD. MESSAGE means that the whole protocol message will be handed to the provider instance, PAYLOAD that only the payload of the protocol message will be handed to the provider instance.
jakarta.xml.ws.Service.Mode.PAYLOAD
7.2. jakarta.xml.ws.WebFault
The
Table 5.WebFault
annotation is used when mapping WSDL faults to Java exceptions, see Section 2.5, “Fault”. It is used to capture the name of the fault element used when marshalling the Jakarta XML Binding type generated from the global element referenced by the WSDL fault message. It can also be used to customize the mapping of service specific exceptions to WSDL faults.WebFault
properties.7.3. jakarta.xml.ws.RequestWrapper
The
Table 6.RequestWrapper
annotation is applied to the methods of an SEI. It is used to capture the Jakarta XML Binding generated request wrapper bean and the element name and namespace for marshalling / unmarshalling the bean. The default value oflocalName
element is theoperationName
as defined inWebMethod
annotation and the default value for thetargetNamespace
element is the target namespace of the SEI. When starting from Java, this annotation is used to resolve overloading conflicts in document literal mode. Only theclassName
element is required in this case.RequestWrapper
properties.7.4. jakarta.xml.ws.ResponseWrapper
The
Table 7.ResponseWrapper
annotation is applied to the methods of an SEI. It is used to capture the Jakarta XML Binding generated response wrapper bean and the element name and namespace for marshalling / unmarshalling the bean. The default value of thelocalName
element is theoperationName
as defined in theWebMethod
appended with "Response" and the default value of thetargetNamespace
element is the target namespace of the SEI. When starting from Java, this annotation is used to resolve overloading conflicts in document literal mode. Only theclassName
element is required in this case.ResponseWrapper
properties.7.5. jakarta.xml.ws.WebServiceClient
The
Table 8.WebServiceClient
annotation is specified on a generated service class (see Section 2.7, “Service and Port”). It is used to associate a class with a specific Web service, identify by a URL to a WSDL document and the qualified name of awsdl:service
element.WebServiceClient
properties.When resolving the URI specified as the
wsdlLocation
element or any document it may transitively reference, a Jakarta XML Web Services implementation MUST use the catalog facility defined in Section 4.4, “Catalog Facility”.7.6. jakarta.xml.ws.WebEndpoint
The
Table 9.WebEndpoint
annotation is specified on theget
PortName()
methods of a generated service class (see Section 2.7, “Service and Port”). It is used to associate a get method with a specificwsdl:port
, identified by its local name (aNCName
).WebEndpoint
properties.<!-- WSDL extract --> <wsdl:service name="StockQuoteService"> <wsdl:port name="StockQuoteHTTPPort" binding="StockQuoteHTTPBinding"/> <wsdl:port name="StockQuoteSMTPPort" binding="StockQuoteSMTPBinding"/> </wsdl:service> // Generated Service Class @WebServiceClient(name="StockQuoteService", targetNamespace="...", wsdlLocation="...") public class StockQuoteService extends jakarta.xml.ws.Service { public StockQuoteService() { super(wsdlLocation_fromAnnotation, serviceName_fromAnnotation); public StockQuoteService(String wsdlLocation, QName serviceName) { super(wsdlLocation, serviceName); // Other StockQuoteService constructors @WebEndpoint(name="StockQuoteHTTPPort") public StockQuoteProvider getStockQuoteHTTPPort() { return super.gePort(portName, StockQuoteProvider.class); @WebEndpoint(name="StockQuoteHTTPPort") public StockQuoteProvider getStockQuoteHTTPPort(WebServiceFeature... f) { return super.gePort(portName, StockQuoteProvider.class, f); @WebEndpoint(name="StockQuoteSMTPPort") public StockQuoteProvider getStockQuoteSMTPPort() { return super.getPort(portName, StockQuoteProvider.class); @WebEndpoint(name="StockQuoteSMTPPort") public StockQuoteProvider getStockQuoteSMTPPort(WebServiceFeature... f) { return super.getPort(portName, StockQuoteProvider.class, f);7.7. jakarta.xml.ws.WebServiceProvider
The
WebServiceProvider
annotation is specified on classes that implement a strongly typedjakarta.xml.ws.Provider
. It is used to declare that a class that satisfies the requirements for a provider (see Section 5.1, “jakarta.xml.ws.Provider”) does indeed define a Web service endpoint, much like theWebService
annotation does for SEI-based endpoints.The
WebServiceProvider
andWebService
annotations are mutually exclusive.◊ Conformance (WebServiceProvider and WebService): A class annotated with the
Table 10.WebServiceProvider
annotation MUST NOT carry aWebService
annotation.WebServiceProvider
properties.When resolving the URL specified as the
wsdlLocation
element or any document it may transitively reference, a Jakarta XML Web Services implementation MUST use the catalog facility defined in Section 4.4, “Catalog Facility”.7.8. jakarta.xml.ws.BindingType
The
Table 11.BindingType
annotation is applied to an endpoint implementation class. It specifies the binding to use when publishing an endpoint of this type.BindingType
properties.7.9. jakarta.xml.ws.WebServiceRef
The
WebServiceRef
annotation is used to declare a reference to a Web service. It follows the resource pattern exemplified by thejakarta.annotation.Resource
annotation in Jakarta Annotations [35].The injected references of
WebServiceRef
annotation are not guaranteed to be thread safe. If the references are accessed by multiple threads, usual synchronization techinques can be used to support multiple threads.The
WebServiceRef
annotation is required to be honored when running on the Jakarta EE platform, where it is subject to the common resource injection rules described by the platform specification [36].The injected references of
WebServiceRef
annotation can be configured with the corresponding features of annotations annotated withWebServiceFeatureAnnotation
annotations. For example, a SEI reference can be configured with the MTOM web service feature using@MTOM
. Similarly, a generated service reference can be configured with web service features using the correspondingWebServiceFeatureAnnotation
annotations. Jakarta XML Web Services specification defines three standard features AddressingFeature, MTOMFeature and RespectBindingFeature that can be used while creating proxy instances. However, there are no standard features that can be used while creating service instances in the current specification. A Jakarta XML Web Services implementation may define its own features but they will be non-portable across all Jakarta XML Web Services implementations.If a Jakarta XML Web Services implementation encounters an unsupported or unrecognized annotation annotated with the
Table 12.WebServiceFeatureAnnotation
that is specified with@WebServiceRef
, an error MUST be given.WebServiceRef
properties.
wsdlLocation
A URL pointing to the location of the WSDL document for the service being referred to.
The resource type as a Java class object
Object.class
value
The service type as a Java class object
Service.class
mappedName
A product specific name that this resource should be mapped to.
lookup
A portable JNDI lookup name that resolves to the target web service reference.
The name of the resource, as defined by the
name
element (or defaulted) is a name that is local to the application component using the resource. The name can be absolute JNDI name(with a logical namespace) or relative to the JNDI java:comp/env namespace. Many application servers provide a way to map these local names to names of resources known to the application server. ThismappedName
is often a global JNDI name, but may be a name of any form. Application servers are not required to support any particular form or type of mapped name, nor the ability to use mapped names. A mapped name is product-dependent and often installation-dependent. No use of a mapped name is portable. A defined reference can be resolved using a portable JNDI name provided bylookup
element. In this case, it is an error if there are any circular dependencies between entries of references. Similarly, it is an error if looking up the specified JNDI name results in a resource whose type is not compatible with the reference being created. Since this "lookup" functionality is just resolving to an already defined reference, onlyname
can be specified withlookup
(doesn’t require any other metadata likewsdlLocation
etc.).There are two uses to the
WebServiceRef
annotation:To define a reference whose type is a generated service class. In this case, the
type
andvalue
element will both refer to the generated service class type. Moreover, if the reference type can be inferred by the field/method declaration the annotation is applied to, thetype
andvalue
elements MAY have the default value (Object.class
, that is). If the type cannot be inferred, then at least thetype
element MUST be present with a non-default value.To define a reference whose type is a SEI. In this case, the
type
element MAY be present with its default value if the type of the reference can be inferred from the annotated field/method declaration, but thevalue
element MUST always be present and refer to a generated service class type (a subtype ofjakarta.xml.ws.Service
).The
wsdlLocation
element, if present, overrides the WSDL location information specified in theWebService
annotation of the referenced generated service class.When resolving the URI specified as the
wsdlLocation
element or any document it may transitively reference, a Jakarta XML Web Services implementation MUST use the catalog facility defined in Section 4.4, “Catalog Facility”.7.9.1. Example
The following shows both uses of the
@WebServiceClient(name="StockQuoteService", targetNamespace="...", wsdlLocation="...") public class StockQuoteService extends jakarta.xml.ws.Service { @WebEndpoint(name="StockQuoteHTTPPort") StockQuoteProvider getStockQuoteHTTPPort() { ... }; @WebEndpoint(name="StockQuoteHTTPPort") StockQuoteProvider getStockQuoteHTTPPort(WebServiceFeature ... f) { ... }; @WebEndpoint(name="StockQuoteSMTPPort") StockQuoteProvider getStockQuoteSMTPPort() { ... }; @WebEndpoint(name="StockQuoteSMTPPort") StockQuoteProvider getStockQuoteSMTPPort(WebServiceFeature ... f) { ... }; // Generated SEI @WebService(name="StockQuoteProvider", targetNamespace="...") public interface StockQuoteProvider { Double getStockQuote(String ticker); // Sample client code @Stateless public class ClientComponent { // WebServiceRef using the generated service interface type @WebServiceRef public StockQuoteService stockQuoteService; // WebServiceRef using the SEI type // stockQuoteProvider proxy is configured with MTOM feature @MTOM @WebServiceRef(StockQuoteService.class) private StockQuoteProvider stockQuoteProvider; // other methods go here...WebServiceRef
annotation.7.10. jakarta.xml.ws.WebServiceRefs
The
WebServiceRefs
annotation is used to declare multiple references to Web services on a single class. It is necessary to work around the limition against specifying repeated annotations of the same type on any given class, which prevents listing multiplejavax.ws.WebServiceRef
annotations one after the other. This annotation follows the resource pattern exemplified by thejakarta.annotation.Resources
annotation in Jakarta Annotations [35].Since no name and type can be inferred in this case, each
WebServiceRef
annotation inside aWebServiceRefs
MUST containname
andtype
elements with non-default values.The
Table 13.WebServiceRef
annotation is required to be honored when running on the Jakarta EE platform, where it is subject to the common resource injection rules described by the platform specification [36].WebServiceRefs
properties.There is no way to associate web service features with the injected instances of this annotation. If an instance needs to be configured with the web service features, use @WebServiceRef to inject the resource along with its features.
7.10.1. Example
The following shows how to use the
WebServiceRefs
annotation to declare at the class level two web service references. The first one uses the SEI type, while the second one uses a generated service class type.@WebServiceRefs({@WebServiceRef(name="accounting" type=AccountingPortType.class, value=AccountingService.class), @WebServiceRef(name="payroll", type=PayrollService.class)}) @Stateless public MyComponent { // methods using the declared resources go here...7.11. Annotations Defined by Jakarta XML Web Services Metadata
In addition to the annotations defined in the preceding sections, Jakarta XML Web Services uses several annotations defined by Jakarta XML Web Services Metadata.
◊ Conformance (Jakarta XML Web Services Metadata conformance): A Jakarta XML Web Services 3.0 implementation MUST be conformant to the Jakarta XML Web Services profile of Jakarta XML Web Services Metadata 2.0[16].
As a convenience to the reader, the following sections reproduce the definition of the Jakarta XML Web Services Metadata annotations applicable to Jakarta XML Web Services.
7.11.1. jakarta.jws.WebService
@Target({TYPE}) public @interface WebService { String name() default ""; String targetNamespace() default ""; String serviceName() default ""; String wsdlLocation() default ""; String endpointInterface() default ""; String portName() default "";Consistently with the URI resolution process in Jakarta XML Web Services, when resolving the URI specified as the
wsdlLocation
element or any document it may transitively reference, a Jakarta XML Web Services implementation MUST use the catalog facility defined in Section 4.4, “Catalog Facility”.7.11.2. jakarta.jws.WebMethod
@Target({METHOD}) public @interface WebMethod { String operationName() default ""; String action() default "" ; boolean exclude() default false; String name() default ""; String targetNamespace() default ""; Mode mode() default Mode.IN; boolean header() default false; String partName() default ""; public @interface WebResult { String name() default "return"; String targetNamespace() default ""; boolean header() default false; String partName() default "";@Target({TYPE, METHOD}) public @interface SOAPBinding { public enum Style { DOCUMENT, RPC } public enum Use { LITERAL, ENCODED } public enum ParameterStyle { BARE, WRAPPED } Style style() default Style.DOCUMENT; Use use() default Use.LITERAL; ParameterStyle parameterStyle() default ParameterStyle.WRAPPED;7.12. jakarta.xml.ws.Action
The
Action
annotation is applied to the methods of a SEI. It is used to specify theinput
,output
,fault
WS-Addressing Action values associated with the annotated method.For such a method, the mapped operation in the generated WSDL’s
Table 14.wsam:Action
attribute on the WSDLinput
,output
andfault
messages of the WSDL operation is based upon which attributes of the Action annotation have been specified. Thewsam:Action
computation algorithm is specified in Section 3.5.2, “wsam:Action Computation Algorithm”Action
properties.7.13. jakarta.xml.ws.FaultAction
The
FaultAction
annotation is used within theAction
annotation to specify the WS-Addressing Action of a service specific exception as defined by Section 3.7, “Service Specific Exception”.The
Table 15.wsam:Action
attribute value in the fault message in the generated WSDL operation mapped for an exception class is equal to the correspondingvalue
in the FaultAction. Thewsam:Action
computation algorithm is specified in Section 3.5.2, “wsam:Action Computation Algorithm”FaultAction
properties.7.14. jakarta.xml.ws.spi.WebServiceFeatureAnnotation
The
Table 16.WebServiceFeatureAnnotation
is a meta-annotation used by a Jakarta XML Web Services implementation to identify other annotations asWebServiceFeature
s. Jakarta XML Web Services provides the following annotations asWebServiceFeatures
:jakarta.xml.ws.soap.Addressing
,jakarta.xml.ws.soap.MTOM
, andjakarta.xml.ws.RespectBinding
. If a Jakarta XML Web Services implementation encounters an annotation annotated with theWebServiceFeatureAnnotation
that it does not support or recognize an ERROR MUST be given.WebServiceFeatureAnnotation
properties.The class name of a derived
WebServiceFeature
class associated with the annotated annotation.No defaults required property
@WebServiceFeatureAnnotation(id=AddressingFeature.ID, bean=AddressingFeature.class) public @interface Addressing { * Specifies if this feature is enabled or disabled. boolean enabled() default true; * Property to determine whether WS-Addressing * headers MUST be present on incoming messages. boolean required() default false;7.14.1. jakarta.xml.ws.soap.Addressing
The
Table 17.Addressing
annotation is applied to an endpoint implementation class and to an injected web service proxy reference. It is used to control the use of WS-Addressing[26][37][27]. It corresponds with theAddressingFeature
described in Section 6.5.1, “jakarta.xml.ws.soap.AddressingFeature”.Addressing
properties.
responses
If addressing is enabled, this property determines if endpoint requires the use of anonymous responses, or non-anonymous responses, or all.
Responses.ALL
The generated WSDL must indicate the use of addressing as specified in the Section 3.11, “Service and Ports”. The runtime requirements of enabling addressing for SOAP binding are specified in Section 10.4.1.5, “Addressing”.
7.14.2. jakarta.xml.ws.soap.MTOM
The
Table 18.MTOM
annotation is applied to an endpoint implementation class and to an injected web service proxy reference. It is used to control the use of MTOM. It corresponds to theMTOMFeature
described in Section 6.5.2, “jakarta.xml.ws.soap.MTOMFeature”.MTOM
properties.
threshold
Specifies the size in bytes that binary data SHOULD be before being sent as an attachment.
7.14.3. jakarta.xml.ws.RespectBinding
The
RespectBinding
annotation is applied to an endpoint implementation class and to an injected web service proxy reference. It is used to control whether a Jakarta XML Web Services implementation MUST respect/honor the contents of thewsdl:binding
associated with an endpoint. It has a correspondingRespectBindingFeature
described in Section 6.5.3, “jakarta.xml.ws.RespectBindingFeature”.
RespectBinding
properties.This chapter describes a standard customization facility that can be used to customize the WSDL 1.1 to Java binding defined in section Chapter 2, WSDL 1.1 to Java Mapping.
8.1. Binding Language
Jakarta XML Web Services defines an XML-based language that can be used to specify customizations to the WSDL 1.1 to Java binding. In order to maintain consistency with Jakarta XML Binding, we call it a binding language. Similarly, customizations will hereafter be referred to as binding declarations.
All XML elements defined in this section belong to the
https://jakarta.ee/xml/ns/jaxws
namespace. For clarity, the rest of this section uses qualified element names exclusively. Wherever it appears, thejaxws
prefix is assumed to be bound to thehttps://jakarta.ee/xml/ns/jaxws
namespace name.The binding language is extensible. Extensions are expressed using elements and/or attributes whose namespace name is different from the one used by this specification.
◊ Conformance (Standard binding declarations): The
https://jakarta.ee/xml/ns/jaxws
namespace is reserved for standard Jakarta XML Web Services binding declarations. Implementations MUST support all standard Jakarta XML Web Services binding declarations. Implementation-specific binding declaration extensions MUST NOT use thehttps://jakarta.ee/xml/ns/jaxws
namespace.◊ Conformance (Binding language extensibility): Implementations MUST ignore unknown elements and attributes appearing inside a binding declaration whose namespace name is not the one specified in the standard, i.e.
https://jakarta.ee/xml/ns/jaxws
.8.2. Binding Declaration Container
There are two ways to specify binding declarations. In the first approach, all binding declarations pertaining to a given WSDL document are grouped together in a standalone document, called an external binding file (see Section 8.4, “External Binding File”). The second approach consists in embeddeding binding declarations directly inside a WSDL document (see Section 8.3, “Embedded Binding Declarations”).
In either case, the
jaxws:bindings
element is used as a container for Jakarta XML Web Services binding declarations. It contains a (possibly empty) list of binding declarations, in any order.19. Syntax of the binding declaration container<jaxws:bindings wsdlLocation="xs:anyURI"? node="xs:string"? version="string"?> ...binding declarations... </jaxws:bindings>A URI pointing to a WSDL file establishing the scope of the contents of this binding declaration. It MUST NOT be present if the
jaxws:bindings
element is used as an extension inside a WSDL document or one of its ancestorjaxws:bindings
elements already contains this attribute.
An XPath expression pointing to the element in the WSDL file in scope
that this binding declaration is attached to. It MUST NOT be present
if the jaxws:bindings
appears inside a WSDL document.
A version identifier. It MUST NOT appear on jaxws:bindings
elements
which have any jaxws:bindings
ancestors (i.e. on non top-level
binding declarations).
For the Jakarta XML Web Services specification, the version identifier, if present,
MUST be 3.0
. If the @version
attribute is absent, it will implicitly
be assumed to be 3.0
.
An embedded binding declaration is specified by using the
jaxws:bindings
element as a WSDL extension. Embedded binding
declarations MAY appear on any of the elements in the WSDL 1.1 namespace
that accept extension elements, per the schema for the WSDL 1.1
namespace as amended by the WS-I Basic Profile 1.1[20].
A binding declaration embedded in a WSDL document can only affect the
WSDL element it extends. When a jaxws:bindings
element is used as a
WSDL extension, it MUST NOT have a node
attribute. Moreover, it MUST
NOT have an element whose qualified name is jaxws:bindings
amongs its
children.
Figure 20, “Sample WSDL document with embedded binding declarations” shows a WSDL document containing binding declaration
extensions. For Jakarta XML Binding annotations, it assumes that
the prefix jaxb
is bound to the namespace name https://jakarta.ee/xml/ns/jaxb
.
<wsdl:definitions targetNamespace="..." xmlns:tns=..." xmlns:stns="..."> <wsdl:types> <xs:schema targetNamespace="http://example.org/bar"> <xs:annotation> <xs:appinfo> <jaxb:bindings> ...some Jakarta XML Binding binding declarations... </jaxb:bindings> </xs:appinfo> </xs:annotation> <xs:element name="setLastTradePrice"> <xs:complexType> <xs:sequence> <xs:element name="tickerSymbol" type="xs:string"/> <xs:element name="lastTradePrice" type="xs:float"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="setLastTradePriceResponse"> <xs:complexType> <xs:sequence/> </xs:complexType> </xs:element> </xs:schema> </wsdl:types> <wsdl:message name="setLastTradePrice"> <wsdl:part name="setPrice" element="stns:setLastTradePrice"/> </wsdl:message> <wsdl:message name="setLastTradePriceResponse"> <wsdl:part name="setPriceResponse" type="stns:setLastTradePriceResponse"/> </wsdl:message> <wsdl:portType name="StockQuoteUpdater"> <wsdl:operation name="setLastTradePrice"> <wsdl:input message="tns:setLastTradePrice"/> <wsdl:output message="tns:setLastTradePriceResponse"/> <jaxws:bindings> <jaxws:method name="updatePrice"/> </jaxws:bindings> </wsdl:operation> <jaxws:bindings> <jaxws:enableAsyncMapping>true</jaxws:enableAsyncMapping> </jaxws:bindings> </wsdl:portType> <jaxws:bindings> <jaxws:package name="com.acme.foo"/> ...additional binding declarations... </jaxws:bindings> </wsdl:definitions>
The jaxws:bindings
element MAY appear as the root element of a XML
document. Such a document is called an external binding file.
An external binding file specifies bindings for a given WSDL document.
The WSDL document in question is identified via the mandatory
wsdlLocation
attribute on the root jaxws:bindings
element in the
document.
In an external binding file, jaxws:bindings
elements MAY appear as
non-root elements, e.g. as a child or descendant of the root
jaxws:bindings
element. In this case, they MUST carry a node
attribute identifying the element in the WSDL document they annotate.
The root jaxws:bindings
element implicitly contains a node
attribute
whose value is //
, i.e. selecting the root element in the document. An
XPath expression on a non-root jaxws:bindings
element selects zero or
more nodes from the set of nodes selected by its parent jaxws:bindings
element.
External binding files are semantically equivalent to embedded binding declarations (see Section 8.3, “Embedded Binding Declarations”). When a Jakarta XML Web Services implementation processes a WSDL document for which there is an external binding file, it MUST operate as if all binding declarations specified in the external binding file were instead specified as embedded declarations on the nodes in the in the WSDL document they target. It is an error if, upon embedding the binding declarations defined in one or more external binding files, the resulting WSDL document contains conflicting binding declarations.
◊ Conformance (Multiple binding files): Implementations MUST support specifying any number of external Jakarta XML Web Services and Jakarta XML Binding binding files for processing in conjunction with at least one WSDL document.
Please refer to Section 8.5, “Using Jakarta XML Binding Binding Declarations” for more information on processing Jakarta XML Binding binding declarations.
Figures 21, “Sample external binding file for WSDL” and 22, “WSDL document referred to by external binding file” show an example external binding file and WSDL document respectively that express the same set of binding declarations as the WSDL document in Section 8.3.1, “Example”.
<jaxws:bindings wsdlLocation="http://example.org/foo.wsdl"> <jaxws:package name="com.acme.foo"/> <jaxws:bindings node="wsdl:types/xs:schema[targetNamespace=’http://example.org/bar’]"> <jaxb:bindings> ...some Jakarta XML Binding binding declarations... </jaxb:bindings> </jaxws:bindings> <jaxws:bindings node="wsdl:portType[@name=’StockQuoteUpdater’]"> <jaxws:enableAsyncMapping>true</jaxws:enableAsyncMapping> <jaxws:bindings node="wsdl:operation[@name=’setLastTradePrice’]"> <jaxws:method name="updatePrice"/> </jaxws:bindings> </jaxws:bindings> ...additional binding declarations.... </jaxws:bindings>
<wsdl:definitions targetNamespace="..." xmlns:tns="..." xmlns:stns="..."> <wsdl:types> <xs:schema targetNamespace="http://example.org/bar"> <xs:element name="setLastTradePrice"> <xs:complexType> <xs:sequence> <xs:element name="tickerSymbol" type="xs:string"/> <xs:element name="lastTradePrice" type="xs:float"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="setLastTradePriceResponse"> <xs:complexType> <xs:sequence/> </xs:complexType> </xs:element> </xs:schema> </wsdl:types> <wsdl:message name="setLastTradePrice"> <wsdl:part name="setPrice" element="stns:setLastTradePrice"/> </wsdl:message> <wsdl:message name="setLastTradePriceResponse"> <wsdl:part name="setPriceResponse" type="stns:setLastTradePriceResponse"/> </wsdl:message> <wsdl:portType name="StockQuoteUpdater"> <wsdl:operation name="setLastTradePrice"> <wsdl:input message="tns:setLastTradePrice"/> <wsdl:output message="tns:setLastTradePriceResponse"/> </wsdl:operation> </wsdl:portType> </wsdl:definitions>
It is possible to use Jakarta XML Binding binding declarations in conjunction with Jakarta XML Web Services.
The Jakarta XML Binding bindings element, henceforth referred to as
jaxb:bindings
, MAY appear as an annotation inside a schema document
embedded in a WSDL document, i.e. as a descendant of a xs:schema
element whose parent is the wsdl:types
element. It affects the data
binding as specified by Jakarta XML Binding.
Additionally, jaxb:bindings
MAY appear inside a Jakarta XML Web Services external
binding file as a child of a jaxws:bindings
element whose node
attribute points to a xs:schema
element inside a WSDL document. When
the schema is processed, the outcome MUST be as if the jaxb:bindings
element was inlined inside the schema document as an annotation on the
schema component.
While processing a Jakarta XML Binding binding declaration (i.e. a jaxb:bindings
element) for a schema document embedded inside a WSDL document, all
XPath expressions that appear inside it MUST be interpreted as if the
containing xs:schema
element was the root of a standalone schema
document.
This last requirement ensures that Jakarta XML Binding processors don’t have to be extended to incorporate knowledge of WSDL. In particular, it becomes possible to take a Jakarta XML Binding binding file and embed it in a Jakarta XML Web Services binding file as-is, without fixing up all its XPath expressions, even in the case that the XML Schema the Jakarta XML Binding binding file refers to was embedded in a WSDL.
Binding declarations are scoped according to the parent-child hierarchy
in the WSDL document. For instance, when determining the value of the
jaxws:enableWrapperStyle
customization parameter for a portType
operation, binding declarations MUST be processed in the following
order, according to the element they pertain to: (1) the portType
operation in question, (2) its parent portType, (3) the definitions
element.
Tools MUST NOT ignore binding declarations. It is an error if upon applying all the customizations in effect for a given WSDL document, any of the generated Java source code artifacts does not contain legal Java syntax. In particular, it is an error to use any reserved keywords as the name of a Java field, method, type or package.
The following sections detail the predefined binding declarations,
classified according to the WSDL element they’re allowed on. All these
declarations reside in the https://jakarta.ee/xml/ns/jaxws
namespace.
The following binding declarations MAY appear in the context of a WSDL
document, either as an extension to the wsdl:definitions
element or in
an external binding file at a place where there is a WSDL document in
scope.
<jaxws:package name="xs:string">? <jaxws:javadoc>xs:string</jaxws:javadoc>? </jaxws:package> <jaxws:enableWrapperStyle>? xs:boolean </jaxws:enableWrapperStyle> <jaxws:enableAsyncMapping>? xs:boolean </jaxws:enableAsyncMapping> <jaxws:enableMIMEContent>? xs:boolean </jaxws:enableMIMEContent>
If present with a boolean value of true
(resp. false
), wrapper
style is enabled (resp. disabled) by default for all operations.
If present with a boolean value of true
(resp. false
),
asynchronous mappings are enabled (resp. disbled) by default for all
operations.
If present with a boolean value of true
(resp. false
), use of the
mime:content
information is enabled (resp. disabled) by default for
all operations.
The enableWrapperStyle
declaration only affects operations that
qualify for the wrapper style per the Jakarta XML Web Services specification. By default,
this declaration is true
, i.e. wrapper style processing is turned on
by default for all qualified operations, and must be disabled by using a
jaxws:enableWrapperStyle
declaration with a value of false
in the
appropriate scope.
The following binding declarations MAY appear in the context of a WSDL
portType, either as an extension to the wsdl:portType
element or with
a node
attribute pointing at one.
Fully qualified name of the generated service endpoint interface
corresponding to the parent wsdl:portType
.
Class-level javadoc string.
If present with a boolean value of true
(resp. false
), wrapper
style is enabled (resp. disabled) by default for all operations in
this wsdl:portType
.
If present with a boolean value of true
(resp. false
),
asynchronous mappings are enabled (resp. disabled) by default for all
operations in this wsdl:portType
.
The following binding declarations MAY appear in the context of a WSDL
portType operation, either as an extension to the
wsdl:portType/wsdl:operation
element or with a node
attribute
pointing at one.
<jaxws:method name="xs:string">? <jaxws:javadoc>xs:string</jaxws:javadoc>? </jaxws:method> <jaxws:enableWrapperStyle>? xs:boolean </jaxws:enableWrapperStyle> <jaxws:enableAsyncMapping>? xs:boolean </jaxws:enableAsyncMapping> <jaxws:parameter part="xs:string" childElementName="xs:QName"? name="xs:string"/>*
If present with a boolean value of true
(resp. false
), wrapper
style is enabled (resp. disabled) by default for this
wsdl:operation
.
If present with a boolean value of true
, asynchronous mappings are
enabled by default for this wsdl:operation
.
A XPath expression identifying a wsdl:part
child of a
wsdl:message
.
The qualified name of a child element information item of the global
type definition or global element declaration referred to by the
wsdl:part
identified by the previous attribute.
The name of the Java formal parameter corresponding to the parameter identified by the previous two attributes.
It is an error if two parameters that do not correspond to the same Java formal parameter are assigned the same name, or if a part/element that corresponds to the Java method return value is assigned a name.
The following binding declarations MAY appear in the context of a WSDL
portType operation’s fault message, either as an extension to the
wsdl:portType/wsdl:operation/wsdl:fault
element or with a node
attribute pointing at one.
Fully qualified name of the generated exception class for this fault.
Class-level javadoc string.
The following binding declarations MAY appear in the context of a WSDL
binding, either as an extension to the wsdl:binding
element or with a
node
attribute pointing at one.
If present with a boolean value of true
(resp. false
), use of the
mime:content
information is enabled (resp. disabled) for all
operations in this binding.
The following binding declarations MAY appear in the context of a WSDL
binding operation, either as an extension to the
wsdl:binding/wsdl:operation
element or with a node
attribute
pointing at one.
If present with a boolean value of true
(resp. false
), use of the
mime:content
information is enabled (resp. disabled) for this
operation.
A XPath expression identifying a wsdl:part
child of a
wsdl:message
.
The qualified name of a child element information item of the global
type definition or global element declaration referred to by the
wsdl:part
identified by the previous attribute.
The name of the Java formal parameter corresponding to the parameter
identified by the previous two attributes. The parameter in question
MUST correspond to a soap:header
extension.
The following binding declarations MAY appear in the context of a WSDL
service, either as an extension to the wsdl:service
element or with a
node
attribute pointing at one.
The following binding declarations MAY appear in the context of a WSDL
service, either as an extension to the wsdl:port
element or with a
node
attribute pointing at one.
<jaxws:method name="xs:string">? <jaxws:javadoc>xs:string</jaxws:javadoc>? </jaxws:method> <jaxws:provider/>?
A port annotated with a jaxws:provider
binding declaration is treated
specially. No service endpoint interface will be generated for it, since
the application code will use in its lieu the jakarta.xml.ws.Provider
interface. Additionally, the port getter method on the generated service
interface will be omitted.
Omitting a getXYZPort() method is necessary for consistency, because if it existed it would specify the non-existing SEI type as its return type.
Jakarta XML Web Services provides a flexible plug-in framework for message processing modules, known as handlers, that may be used to extend the capabilities of a Jakarta XML Web Services runtime system. This chapter describes the handler framework in detail.
◊ Conformance (Handler framework support): An implementation MUST support the handler framework.
The handler framework is implemented by a Jakarta XML Web Services protocol binding in
both client and server side runtimes. Proxies, and Dispatch
instances,
known collectively as binding providers, each use protocol bindings to
bind their abstract functionality to specific protocols (see
Figure 2, “Handler architecture”). Protocol bindings can extend the handler framework to
provide protocol specific functionality; Chapter 10, SOAP Binding
describes the Jakarta XML Web Services SOAP binding that extends the handler framework
with SOAP specific functionality.
Client and server-side handlers are organized into an ordered list known as a handler chain. The handlers within a handler chain are invoked each time a message is sent or received. Inbound messages are processed by handlers prior to binding provider processing. Outbound messages are processed by handlers after any binding provider processing.
Handlers are invoked with a message context that provides methods to access and modify inbound and outbound messages and to manage a set of properties. Message context properties may be used to facilitate communication between individual handlers and between handlers and client and service implementations. Different types of handlers are invoked with different types of message context.
Handlers that only operate on message context properties and message
payloads. Logical handlers are protocol agnostic and are unable to
affect protocol specific parts of a message. Logical handlers are
handlers that implement jakarta.xml.ws.handler.LogicalHandler
.
Handlers that operate on message context properties and protocol
specific messages. Protocol handlers are specific to a particular
protocol and may access and change protocol specific aspects of a
message. Protocol handlers are handlers that implement any interface
derived from jakarta.xml.ws.handler.Handler
except
jakarta.xml.ws.handler.LogicalHandler
.
The following subsections describe the responsibilities of the protocol binding when hosting a handler chain.
The binding is responsible for instantiation, invocation, and destruction of handlers according to the rules specified in section Section 9.3, “Processing Model”. The binding is responsible for instantiation and management of message contexts according to the rules specified in Section 9.4, “Message Context”
◊ Conformance (Logical handler support): All binding implementations MUST support logical handlers (see Section 9.1.1, “Types of Handler”) being deployed in their handler chains.
◊ Conformance (Other handler support): Binding implementations MAY support other handler types (see Section 9.1.1, “Types of Handler”) being deployed in their handler chains.
◊ Conformance (Incompatible handlers): An implementation MUST throw
WebServiceException
when, at the time a binding provider is created,
the handler chain returned by the configured HandlerResolver
contains
an incompatible handler.
◊ Conformance (Incompatible handlers): Implementations MUST throw a
WebServiceException
when attempting to configure an incompatible
handler using the Binding.setHandlerChain
method.
The binding is responsible for dispatch of both outbound and inbound messages after handler processing. Outbound messages are dispatched using whatever means the protocol binding uses for communication. Inbound messages are dispatched to the binding provider. Jakarta XML Web Services defines no standard interface between binding providers and their binding.
The binding is responsible for catching runtime exceptions thrown by handlers and respecting any resulting message direction and message type change as described in Section 9.3.2, “Handler Execution”.
Outbound exceptions[8] are converted to protocol fault messages and dispatched using whatever means the protocol binding uses for communication. Specific protocol bindings describe the mechanism for their particular protocol, Section 10.2.2, “Exception Handling” describes the mechanism for the SOAP 1.1 binding. Inbound exceptions are passed to the binding provider.
Handler chains may be configured either programmatically or using deployment metadata. The following subsections describe each form of configuration.
Jakarta XML Web Services only defines APIs for programmatic configuration of client side handler chains – server side handler chains are expected to be configured using deployment metadata.
A Service
instance maintains a handler resolver that is used when
creating proxies or Dispatch
instances, known collectively as binding
providers. During the creation of a binding provider, the handler
resolver currently registered with a service is used to create a handler
chain, which in turn is then used to configure the binding provider. A
Service
instance provides access to a handlerResolver
property, via
the Service.getHandlerResolver
and Service.setHandlerResolver
methods. A HandlerResolver
implements a single method,
getHandlerChain
, which has one argument, a PortInfo
object. The
Jakarta XML Web Services runtime uses the PortInfo
argument to pass the
HandlerResolver
of the service, port and binding in use. The
HandlerResolver
may use any of this information to decide which
handlers to use in constructing the requested handler chain.
When a Service
instance is used to create an instance of a binding
provider then the created instance is configured with the handler chain
created by the HandlerResolver
instance registered on the Service
instance at that point in time.
◊ Conformance (Handler chain snapshot): Changing the handler resolver configured for a
Service
instance MUST NOT affect the handlers on previously created
proxies, or Dispatch
instances.
The handler chain for a binding is constructed by starting with the
handler chain as returned by the HandlerResolver
for the service in
use and sorting its elements so that all logical handlers precede all
protocol handlers. In performing this operation, the order of handlers
of any given type (logical or protocol) in the original chain is
maintained. Figure 4, “Handler ordering, Ln and Pn represent logical and protocol handlers respectively.” illustrates this.
Section 9.3.2, “Handler Execution” describes how the handler order relates to the order of handler execution for inbound and outbound messages.
The jakarta.jws.HandlerChain
annotation defined by Jakarta XML Web Services
Metadata [16] may be used to specify in a declarative way the handler
chain to use for a service.
When used in conunction with Jakarta XML Web Services, the name
element of the
HandlerChain
annotation, if present, MUST have the default value (the
empty string).
In addition to appearing on a endpoint implementation class or a SEI, as
specified by Jakarta XML Web Services Metadata, the handlerChain
annotation
MAY appear on a generated service class. In this case, it affects all the proxies
and Dispatch
instances created using any of the ports on the service.
◊ Conformance (HandlerChain annotation): An implementation MUST support using the
HandlerChain
annotation on an endpoint implementation class, including
a provider, on an endpoint interface and on a generated service class.
On the client, the HandlerChain
annotation can be seen as a shorthand
way of defining and installing a handler resolver (see
Section 4.1.3, “Handler Resolver”).
◊ Conformance (Handler resolver for a HandlerChain annotation): For a generated service
class (see Section 2.7, “Service and Port”) which is annotated with a HandlerChain
annotation, the default handler resolver MUST return handler chains
consistent with the contents of the handler chain descriptor referenced
by the HandlerChain
annotation.
Figure 23, “Use of the HandlerChain annotation” shows an endpoint implementation class annotated
with a HandlerChain
annotation.
@WebService @HandlerChain(file="sample_chain.xml") public class MyService {9.2.1.4. jakarta.xml.ws.Binding
The
Binding
interface is an abstraction of a Jakarta XML Web Services protocol binding (see Section 6.1, “jakarta.xml.ws.Binding” for more details). As described above, the handler chain initially configured on an instance is a snapshot of the applicable handlers configured on theService
instance at the time of creation.Binding
provides methods to manipulate the initially configured handler chain for a specific instance.◊ Conformance (Binding handler manipulation): Changing the handler chain on a
Binding
instance MUST NOT cause any change to the handler chains configured on theService
instance used to create theBinding
instance.9.2.2. Deployment Model
Jakarta XML Web Services defines no standard deployment model for handlers. Such a model is provided by Jakarta Enterprise Web Services[17].
9.3.1. Handler Lifecycle
In some cases, a Jakarta XML Web Services implementation must instantiate handler classes directly, e.g. in a container environment or when using the
HandlerChain
annotation. When doing so, an implementation must invoke the handler lifecycle methods as prescribed in this section.If an application does its own instantiation of handlers, e.g. using a handler resolver, then the burden of calling any handler lifecycle methods falls on the application itself. This should not be seen as inconsistent, because handlers are logically part of the application, so their contract will be known to the application developer.
The Jakarta XML Web Services runtime system manages the lifecycle of handlers by invoking any methods of the handler class annotated as lifecycle methods before and after dispatching requests to the handler itself.
The Jakarta XML Web Services runtime system is responsible for loading the handler class and instantiating the corresponding handler object according to the instruction contained in the applicable handler configuration file or deployment descriptor.
The lifecycle of a handler instance begins when the Jakarta XML Web Services runtime system creates a new instance of the handler class.
The runtime MUST then carry out any injections requested by the handler, typically via the
jakarta.annotation.Resource
annotation. After all the injections have been carried out, including in the case where no injections were requested, the runtime MUST invoke the method carrying ajakarta.annotation.PostConstruct
annotation, if present. Such a method MUST satisfy the requirements in Jakarta Annotations [35] for lifecycle methods (i.e. it has a void return type and takes zero arguments). The handler instance is then ready for use.◊ Conformance (Handler initialization): After injection has been completed, an implementation MUST call the lifecycle method annotated with
PostConstruct
, if present, prior to invoking any other method on a handler instance.Once the handler instance is created and initialized it is placed into the
Ready
state. While in theReady
state the Jakarta XML Web Services runtime system may invoke other handler methods as required.The lifecycle of a handler instance ends when the Jakarta XML Web Services runtime system stops using the handler for processing inbound or outbound messages. After taking the handler offline, a Jakarta XML Web Services implementation SHOULD invoke the lifecycle method which carries a
jakarta.annotation.PreDestroy
annotation, if present, so as to permit the handler to clean up its resources. Such a method MUST satisfy the requirements in Jakarta Annotations [35] for lifecycle methodsAn implementation can only release handlers after the instance they are attached to, be it a proxy, a
Dispatch
object, an endpoint or some other component, e.g. a EJB object, is released. Consequently, in non-container environments, it is impossible to call thePreDestroy
method in a reliable way, and handler instance cleanup must be left to finalizer methods and regular garbage collection.◊ Conformance (Handler destruction): In a managed environment, prior to releasing a handler instance, an implementation MUST call the lifecycle method annotated with
PreDestroy
method, if present, on anyHandler
instances which it instantiated.The handler instance must release its resources and perform cleanup in the implementation of the
PreDestroy
lifecycle method. After invocation of thePreDestroy
method(s), the handler instance will be made available for garbage collection.9.3.2. Handler Execution
As described in Section 9.2.1.2, “Handler Ordering”, a set of handlers is managed by a binding as an ordered list called a handler chain. Unless modified by the actions of a handler (see below) normal processing involves each handler in the chain being invoked in turn. Each handler is passed a message context (see Section 9.4, “Message Context”) whose contents may be manipulated by the handler.
For outbound messages handler processing starts with the first handler in the chain and proceeds in the same order as the handler chain. For inbound messages the order of processing is reversed: processing starts with the last handler in the chain and proceeds in the reverse order of the handler chain. E.g., consider a handler chain that consists of six handlers H1…H6 in that order: for outbound messages handler H1 would be invoked first followed by H2, H3, …, and finally handler H6; for inbound messages H6 would be invoked first followed by H5, H4, …, and finally H1.
In the following discussion the terms next handler and previous handler are used. These terms are relative to the direction of the message, Table 19, “Next and previous handlers for handler Hi.” summarizes their meaning.
Handlers may change the direction of messages and the order of handler processing by throwing an exception or by returning
Table 19. Next and previous handlers for handler Hi.false
fromhandleMessage
orhandleFault
. The following subsections describe each handler method and the changes to handler chain processing they may cause.This method is called for normal message processing. Following completion of its work the
handleMessage
implementation can do one of the following:
true
This indicates that normal message processing should continue. The
runtime invokes handleMessage
on the next handler or dispatches the
message (see Section 9.1.2.2, “Message Dispatch”) if there are no further
handlers.
false
This indicates that normal message processing should cease. Subsequent actions depend on whether the message exchange pattern (MEP) in use requires a response to the message currently being processed[9] or not:
The message direction is reversed, the runtime invokes
handleMessage
on the next[10]
handler or dispatches the message (see Section 9.1.2.2, “Message Dispatch”) if
there are no further handlers.
Normal message processing stops, close
is called on each
previously invoked handler in the chain, the message is dispatched
(see Section 9.1.2.2, “Message Dispatch”).
ProtocolException
or a subclassThis indicates that normal message processing should cease. Subsequent actions depend on whether the MEP in use requires a response to the message currently being processed or not:
Normal message processing stops, fault message processing starts.
The message direction is reversed, if the message is not already a
fault message then it is replaced with a fault message[11], and the runtime invokes
handleFault
on the nexthandler or dispatches the message (see
Section 9.1.2.2, “Message Dispatch”) if there are no further handlers.
Normal message processing stops, close
is called on each
previously invoked handler in the chain, the exception is dispatched
(see Section 9.1.2.3, “Exception Handling”).
This indicates that normal message processing should cease. Subsequent actions depend on whether the MEP in use includes a response to the message currently being processed or not:
Normal message processing stops, close
is called on each
previously invoked handler in the chain, the message direction is
reversed, and the exception is dispatched (see section
Section 9.1.2.3, “Exception Handling”).
Normal message processing stops, close
is called on each
previously invoked handler in the chain, the exception is dispatched
(see Section 9.1.2.3, “Exception Handling”).
handleFault
Called for fault message processing, following completion of its work
the handleFault
implementation can do one of the following:
true
This indicates that fault message processing should continue. The
runtime invokes handleFault
on the next handler or dispatches the
fault message (see Section 9.1.2.2, “Message Dispatch”) if there are no further
handlers.
false
This indicates that fault message processing should cease. Fault
message processing stops, close
is called on each previously invoked
handler in the chain, the fault message is dispatched (see section
Section 9.1.2.2, “Message Dispatch”).
ProtocolException
or a subclassThis indicates that fault message processing should cease. Fault
message processing stops, close
is called on each previously invoked
handler in the chain, the exception is dispatched (see section
Section 9.1.2.3, “Exception Handling”).
This indicates that fault message processing should cease. Fault
message processing stops, close
is called on each previously invoked
handler in the chain, the exception is dispatched (see section
Section 9.1.2.3, “Exception Handling”).
A handler’s close
method is called at the conclusion of a message
exchange pattern (MEP). It is called just prior to the binding
dispatching the final message, fault or exception of the MEP and may be
used to clean up per-MEP resources allocated by a handler. The close
method is only called on handlers that were previously invoked via
either handleMessage
or handleFault
◊ Conformance (Invoking close
):
At the conclusion of an MEP, an implementation MUST
call the close
method of each handler that was previously invoked
during that MEP via either handleMessage
or handleFault
.
◊ Conformance (Order of close
invocations):
Handlers are invoked in the reverse order
in which they were first invoked to handle a message according to the
rules for normal message processing (see Section 9.3.2, “Handler Execution”).
Handler instances may be pooled by a Jakarta XML Web Services runtime system. All instances of a specific handler are considered equivalent by a Jakarta XML Web Services runtime system and any instance may be chosen to handle a particular message. Different handler instances may be used to handle each message of an MEP. Different threads may be used for each handler in a handler chain, for each message in an MEP or any combination of the two. Handlers should not rely on thread local state to share information. Handlers should instead use the message context, see section Section 9.4, “Message Context”.
Handlers are invoked with a message context that provides methods to access and modify inbound and outbound messages and to manage a set of properties.
Different types of handler are invoked with different types of message
context. Section 9.4.1, “jakarta.xml.ws.handler.MessageContext” and Section 9.4.2, “jakarta.xml.ws.handler.LogicalMessageContext” describe
MessageContext
and LogicalMessageContext
respectively. In addition,
Jakarta XML Web Services bindings may define a message context subtype for their
particular protocol binding that provides access to protocol specific
features. Section 10.3, “SOAP Message Context” describes the message context
subtype for the Jakarta XML Web Services SOAP binding.
MessageContext
is the super interface for all Jakarta XML Web Services message contexts.
It extends Map<String,Object>
with additional methods and constants to
manage a set of properties that enable handlers in a handler chain to
share processing related state. For example, a handler may use the put
method to insert a property in the message context that one or more
other handlers in the handler chain may subsequently obtain via the
get
method.
Properties are scoped as either APPLICATION
or HANDLER
. All
properties are available to all handlers for an instance of an MEP on a
particular endpoint. E.g., if a logical handler puts a property in the
message context, that property will also be available to any protocol
handlers in the chain during the execution of an MEP instance.
APPLICATION
scoped properties are also made available to client
applications (see Section 4.2.1, “Configuration”) and service endpoint
implementations. The defaultscope for a property is HANDLER
.
◊ Conformance (Message context property scope): Properties in a message context MUST be shared across all handler invocations for a particular instance of an MEP on any particular endpoint.
Table 20, “Standard MessageContext
properties.” lists the set of standard MessageContext
properties.
The standard properties form a set of metadata that describes the context of a particular message. The property values may be manipulated by client applications, service endpoint implementations, the Jakarta XML Web Services runtime or handlers deployed in a protocol binding. A Jakarta XML Web Services runtime is expected to implement support for those properties shown as mandatory and may implement support for those properties shown as optional.
Table 21, “Standard HTTP MessageContext
properties.” lists the standard MessageContext
properties specific to the HTTP protocol. These properties are only
required to be present when using an HTTP-based binding.
Table 22, “Standard Servlet Container-Specific MessageContext
properties.” lists those properties that are
specific to endpoints running inside a servlet container. These
properties are only required to be present in the message context of an
endpoint that is deployed inside a servlet container and uses an
HTTP-based binding.
MessageContext
properties.
map of attachments to an inbound message. The key is a unique identifier
for the attachment. The value is a DataHandler
for the attachment
data. Bindings describe how to carry attachments with messages.
.outbound
Map<String,DataHandler>
A map of attachments to an outbound message. The key is a unique
identifier for the attachment. The value is a DataHandler
for the
attachment data. Bindings describe how to carry attachments with
messages.
jakarta.xml.ws.reference
.parameters
List<Element>
A list of WS Addressing reference
parameters. The list MUST include all SOAP headers marked with the
wsa:IsReferenceParameter="true"
attribute.
jakarta.xml.ws.wsdl
.description
A resolvable URI that may be used to obtain access to the WSDL for the endpoint.
.service
QName
The name of the service being invoked in the WSDL.
.port
QName
The name of the port over which the current message was received in the WSDL.
.interface
QName
The name of the port type to which the current message belongs.
.operation
QName
The name of the WSDL operation to which the current message belongs. The namespace is the target namespace of the WSDL definitions element.
A map of the HTTP headers for the request message. The key is the header name. The value is a list of values for that header.
.method
String
The HTTP method for the request message.
.querystring
String
The HTTP query string for the request message, or null
if the request does not have any. If the address specified using the
jakarta.xml.ws.service.endpoint.address in the BindingProvider contains a
query string and if the querystring property is set by the client it
will override the existing query string in the
jakarta.xml.ws.service.endpoint.address property. The value of the
property does not include the leading "?" of the query string in it.
This property is only used with HTTP binding.
.pathinfo
String
Extra path information associated with the URL the client sent when it made this request. The extra path information follows the base url path but precedes the query string and will start with a "/" character.
jakarta.xml.ws.http.response
.headers
Map<String,List<String>>
A map of the HTTP headers for the response message. The key is the header name. The value is a list of values for that header.
.code
Integer
The HTTP response status code.
Logical handlers (see Section 9.1.1, “Types of Handler”) are passed a message
context of type LogicalMessageContext
when invoked.
LogicalMessageContext
extends MessageContext
with methods to obtain
and modify the message payload, it does not provide access to the
protocol specific aspects of a message. A protocol binding defines what
component of a message are available via a logical message context.
E.g., the SOAP binding, see Section 10.1.1.2, “SOAP Handlers”, defines that a
logical handler deployed in a SOAP binding can access the contents of
the SOAP body but not the SOAP headers whereas the XML/HTTP binding
described in Chapter 11, HTTP Binding defines that a logical handler can
access the entire XML payload of a message.
The getSource()
method of LogicalMessageContext
MUST return null
whenever the message doesn’t contain an actual payload. A case in which
this might happen is when, on the server, the endpoint implementation
has thrown an exception and the protocol in use does not define a notion
of payload for faults (e.g. the HTTP binding defined in Chapter 11, HTTP Binding).
Client side binding providers have methods to access contexts for outbound and inbound messages. As described in section Section 4.2.1, “Configuration” these contexts are used to initialize a message context at the start of a message exchange and to obtain application scoped properties from a message context at the end of a message exchange.
As described in Chapter 5, Service APIs, service endpoint implementations may require injection of a context from which they can access the message context for each inbound message and manipulate the corresponding application-scoped properties.
Handlers may manipulate the values and scope of properties within the
message context as desired. E.g., a handler in a client-side SOAP
binding might introduce a header into a SOAP request message to carry
metadata from a property that originated in a BindingProvider
request
context; a handler in a server-side SOAP binding might add application
scoped properties to the message context from the contents of a header
in a request SOAP message that is then made available in the context
available (via injection) to a service endpoint implementation.
This chapter describes the Jakarta XML Web Services SOAP binding and its extensions to the handler framework (described in Chapter 9, Handler Framework) for SOAP message processing.
A SOAP binding instance requires SOAP specific configuration in addition to that described in Section 9.2, “Configuration”. The additional information can be configured either programmatically or using deployment metadata. The following subsections describe each form of configuration.
Jakarta XML Web Services defines APIs for programmatic configuration of client-side SOAP
bindings. Server side bindings can be configured programmatically when
using the Endpoint
API (see Section 5.2, “jakarta.xml.ws.Endpoint”), but are otherwise expected
to be configured using annotations or deployment metadata.
SOAP 1.1[2] and SOAP 1.2[3][4] use different terminology for the same concept: a SOAP 1.1 actor is equivalent to a SOAP 1.2 role. This specification uses the SOAP 1.2 terminology.
An ultimate SOAP receiver always plays the following roles:
In SOAP 1.1, the next role is identified by the URI http://schemas.xmlsoap.org/soap/actor/next. In SOAP 1.2, the next role is identified by the URI http://www.w3.org/2003/05/soap-envelope/role/next.
In SOAP 1.1 the ultimate receiver role is identified by omission of
the actor
attribute from a SOAP header. In SOAP 1.2 the ultimate
receiver role is identified by the URI
http://www.w3.org/2003/05/soap-envelope/role/ultimateReceiver or by
omission of the role
attribute from a SOAP header.
◊ Conformance (SOAP required roles): An implementation of the SOAP binding MUST act in the following roles: next and ultimate receiver.
A SOAP 1.2 endpoint never plays the following role:
In SOAP 1.2, the none role is identified by the URI http://www.w3.org/2003/05/soap-envelope/role/none.
◊ Conformance (SOAP required roles): An implementation of the SOAP binding MUST NOT act in the none role.
The jakarta.xml.ws.SOAPBinding
interface is an abstraction of the Jakarta XML Web Services
SOAP binding. It extends jakarta.xml.ws.Binding
with methods to
configure additional SOAP roles played by the endpoint.
◊ Conformance (Default role visibility): An implementation MUST include the required
next and ultimate receiver roles in the Set
returned from
SOAPBinding.getRoles
.
◊ Conformance (Default role persistence): An implementation MUST add the required next
and ultimate receiver roles to the roles configured with
SOAPBinding.setRoles
.
◊ Conformance (None role error): An implementation MUST throw WebServiceException
if
a client attempts to configure the binding to play the none role via
SOAPBinding.setRoles
.
The handler chain for a SOAP binding is configured as described in Section 9.2.1, “Programmatic Configuration”. The handler chain may contain handlers of the following types:
Logical handlers are handlers that implement
jakarta.xml.ws.handler.LogicalHandler
either directly or indirectly.
Logical handlers have access to the content of the SOAP body via the
logical message context.
SOAP handlers are handlers that implement
jakarta.xml.ws.handler.soap.SOAPHandler
.
Mime attachments specified by the
jakarta.xml.ws.binding.attachments.inbound
and
jakarta.xml.ws.binding.attachments.outbound
properties defined in the
Table 20, “Standard MessageContext
properties.” can be modified in logical
handlers. A SOAP message with the attachments specified using the
properties is generated before invoking the first SOAPHandler
. Any
changes to the two properites in consideration above in the
MessageContext
after invoking the first SOAPHandler
are ignored. The
SOAPHandler
however may change the properties in the MessageContext
Use of jakarta.xml.ws.binding.attachments.outbound
property in Dispatch
When using Dispatch
in SOAP / HTTP binding in payload mode,
attachments specified using the
jakarta.xml.ws.binding.attachments.outbound
property will be included as
mime attachments in the message.
When using Dispatch
in SOAP / HTTP binding in message mode, the
jakarta.xml.ws.binding.attachments.outbound
property will be ignored as
the message type already provides a way to specify attachments.
◊ Conformance (Incompatible handlers): An implementation MUST throw
WebServiceException
when, at the time a binding provider is created,
the handler chain returned by the configured HandlerResolver
contains
an incompatible handler.
◊ Conformance (Incompatible handlers): Implementations MUST throw a
WebServiceException
when attempting to configure an incompatible
handler using Binding.setHandlerChain
.
◊ Conformance (Logical handler access): An implementation MUST allow access to the contents of the SOAP body via a logical message context.
The SOAP headers understood by a handler are obtained using the
getHeaders
method of SOAPHandler
.
Jakarta XML Web Services defines no standard deployment model for handlers. Such a model is provided by Jakarta Enterprise Web Services[17].
The SOAP binding implements the general handler framework processing model described in Section 9.3, “Processing Model” but extends it to include SOAP specific processing as described in the following subsections.
mustUnderstand
ProcessingThe SOAP protocol binding performs the following additional processing on inbound SOAP messages prior to the start of normal handler invocation processing (see Section 9.3.2, “Handler Execution”). Refer to the SOAP specification[2][3][4] for a normative description of the SOAP processing model. This section is not intended to supercede any requirement stated within the SOAP specification, but rather to outline how the configuration information described above is combined to satisfy the SOAP requirements:
Obtain the set of Handler
s deployed on the current
binding instance. This is obtained via Binding.getHandlerChain
.
Identify the set of header qualified names
(QNames) that the binding instance understands. This is the set of all
header QName
s that satisfy at least one of the following conditions:
that are mapped to method parameters in the service endpoint interface;
are members of SOAPHandler.getHeaders()
for each SOAPHandler
in
the set obtained in Step 2;
are directly supported by the binding instance.
Identify the set of must understand headers in
the inbound message that are targeted at this node. This is the set of
all headers with a mustUnderstand
attribute whose value is 1
or
true
and an actor
or role
attribute whose value is in the set
obtained in Step 1.
For each header in the set obtained in Step 4, the header is understood if its QName is in the set identified in Step 3.
If every header in the set obtained in Step 4 is understood, then the node understands how to process the message. Otherwise the node does not understand how to process the message.
If the node does not understand how to process the message, then neither handlers nor the endpoint are invoked and instead the binding generates a SOAP must understand exception. Subsequent actions depend on whether the message exchange pattern (MEP) in use requires a response to the message currently being processed or not:
The message direction is reversed and the binding dispatches the SOAP must understand exception (see Section 10.2.2, “Exception Handling”).
The binding dispatches the SOAP must understand exception (see Section 10.2.2, “Exception Handling”).
The following subsections describe SOAP specific requirements for handling exceptions thrown by handlers and service endpoint implementations.
A binding is responsible for catching runtime exceptions thrown by handlers and following the processing model described in Section 9.3.2, “Handler Execution”. A binding is responsible for converting the exception to a fault message subject to further handler processing if the following criteria are met:
If the exception is an instance of SOAPFaultException
then the
fields of the contained Jakarta SOAP with Attachments' SOAPFault
are serialized to a new SOAP
fault message, see Section 10.2.2.3, “Mapping Exceptions to SOAP Faults”. The current message is
replaced by the new SOAP fault message.
If the exception is of any other type then a new SOAP fault message is created to reflect a server class of error for SOAP 1.1[2] or a receiver class of error for SOAP 1.2[3].
Handler processing is resumed as described in Section 9.3.2, “Handler Execution”.
If the criteria for converting the exception to a fault message subject to further handler processing are not met then the exception is handled as follows depending on the current message direction:
A new SOAP fault message is created to reflect a server class of error for SOAP 1.1[2] or a receiver class of error for SOAP 1.2[3] and the message is dispatched.
The exception is passed to the binding provider.
Service endpoints can throw service specific exceptions or runtime exceptions. In both cases they can provide protocol specific information using the cause mechanism, see Section 6.4.1, “Protocol Specific Exception Handling”.
A server side implementation of the SOAP binding is responsible for
catching exceptions thrown by a service endpoint implementation and, if
the message exchange pattern in use includes a response to the message
that caused the exception, converting such exceptions to SOAP fault
messages and invoking the handleFault
method on handlers for the fault
message as described in Section 9.3.2, “Handler Execution”.
Section 10.2.2.3, “Mapping Exceptions to SOAP Faults” describes the rules for mapping an exception to a SOAP fault.
When mapping an exception to a SOAP fault, the fields of the fault message are populated according to the following rules of precedence:
Serialized service specific exception (see
WrapperException.getFaultInfo()
in Section 2.5, “Fault”)
SOAPFaultException.getFault().getDetail()
[12]
SOAP handlers are passed a SOAPMessageContext
when invoked.
SOAPMessageContext
extends MessageContext
with methods to obtain and
modify the SOAP message payload.
SOAP[2][4] can be bound to multiple transport or transfer protocols. This section describes requirements pertaining to the supported protocols for use with SOAP.
The SOAP 1.1 HTTP binding is identified by the URL
http://schemas.xmlsoap.org/wsdl/soap/http
, which is also the value of
the constant jakarta.xml.ws.soap.SOAPBinding.SOAP11HTTP_BINDING
.
◊ Conformance (SOAP 1.1 HTTP Binding Support): An implementation MUST support the HTTP binding of SOAP 1.1[2] and SOAP With Attachments[38] as clarified by the WS-I Basic Profile[20], WS-I Simple SOAP Binding Profile[32] and WS-I Attachment Profile[33].
The SOAP 1.2 HTTP binding is identified by the URL
http://www.w3.org/2003/05/soap/bindings/HTTP/
, which is also the value
of the constant jakarta.xml.ws.soap.SOAPBinding.SOAP12HTTP_BINDING
.
◊ Conformance (SOAP 1.2 HTTP Binding Support): An implementation MUST support the HTTP binding of SOAP 1.2[4].
◊ Conformance (SOAP MTOM Support): An implementation MUST support MTOM[30] [13].
SOAPBinding
defines a property (in the JavaBeans sense) called
MTOMEnabled
that can be used to control the use of MTOM. The
getMTOMEnabled
method is used to query the current value of the
property. The setMTOMEnabled
method is used to change the value of the
property so as to enable or disable the use of MTOM.
◊ Conformance (Semantics of MTOM enabled): When MTOM is enabled, a receiver MUST accept both non-optimized and optimized messages, and a sender MAY send an optimized message, non-optimized messages being also acceptable.
The heuristics used by a sender to determine whether to use optimization or not are implementation-specific.
◊ Conformance (MTOM support): Predefined SOAPBinding
instances MUST support
enabling/disabling MTOM support using the setMTOMenabled
method.
◊ Conformance (SOAP bindings with MTOM disabled): The bindings corresponding to the following IDs:
For convenience, this specification defines two additional binding identifiers for SOAP 1.1 and SOAP 1.2 over HTTP with MTOM enabled.
The URL of the former is
http://schemas.xmlsoap.org/wsdl/soap/http?mtom=true
and its predefined
constant jakarta.xml.ws.soap.SOAPBinding.SOAP11HTTP_MTOM_BINDING
.
The URL of the latter is
http://www.w3.org/2003/05/soap/bindings/HTTP/?mtom=true
and its
predefined constant
jakarta.xml.ws.soap.SOAPBinding.SOAP12HTTP_MTOM_BINDING
.
◊ Conformance (SOAP bindings with MTOM enabled): The bindings corresponding to the following IDs:
◊ Conformance (MTOM on Other SOAP Bindings): Other bindings that extend SOAPBinding
MAY NOT support changing the value of the MTOMEnabled
property. In
this case, if an application attempts to change its value, an
implementation MUST throw a WebServiceException
.
HTTP interactions are request-response in nature. When using HTTP as the transfer protocol for a one-way SOAP message, implementations wait for the HTTP response even though there is no SOAP message in the HTTP response entity body.
◊ Conformance (One-way operations): When invoking one-way operations, an implementation of the SOAP/HTTP binding MUST block until the HTTP response is received or an error occurs.
Note that completion of the HTTP request simply means that the transmission of the request is complete, not that the request was accepted or processed.
Section 4.2.1.1, “Standard Properties” defines two standard context properties
(jakarta.xml.ws.security.auth.username
and
jakarta.xml.ws.security.auth.password
) that may be used to configure
authentication information.
◊ Conformance (HTTP basic authentication support): An implementation of the SOAP/HTTP binding MUST support HTTP basic authentication.
◊ Conformance (Authentication properties): A client side implementation MUST support
use of the the standard properties jakarta.xml.ws.security.auth.username
and jakarta.xml.ws.security.auth.password
to configure HTTP basic
authentication.
Section 4.2.1.1, “Standard Properties” defines a standard context property
(jakarta.xml.ws.session.maintain
) that may be used to control whether a
client side runtime will join a session initiated by a service.
A SOAP/HTTP binding implementation can use three HTTP mechanisms for session management:
To initiate a session a service includes a cookie in a message sent to a client. The client stores the cookie and returns it in subsequest messages to the service.
To initiate a session a service directs a client to a new URL for subsequent interactions. The new URL contains an encoded session identifier.
The SSL session ID is used to track a session.
R1120 in WS-I Basic Profile 1.1[20] allows a service to use HTTP cookies. However, R1121 recommends that a service should not rely on use of cookies for state management.
◊ Conformance (URL rewriting support): An implementation MUST support use of HTTP URL rewriting for state management.
◊ Conformance (Cookie support): An implementation SHOULD support use of HTTP cookies for state management.
◊ Conformance (SSL session support): An implementation MAY support use of SSL session based state management.
If addressing is enabled, implementations are required to follow WS-Addressing[26][37][27] protocols.
◊ Conformance (SOAP Addressing Support): An implementation MUST support WS-Addressing 1.0 - SOAP Binding[37].
◊ Conformance (wsa:Action
value):
wsa:Action
value MUST be got from @Action
annotation elements in SEI, if present. But if a client sets a
BindingProvider.SOAPACTION_URI_PROPERTY
property then that MUST be
used for wsa:Action
header.
If a receiver receives messages with the WS-Addressing headers that are non-conformant as per WS-Addressing 1.0- SOAP Binding[37], then appropriate addressing pre-defined faults must be generated.
A Jakarta XML Web Services application may send wsa:replyTo
or wsa:FaultTo
addressing
header to receive non-anonymous responses at a different address other
than the transport back channel. When the application receives a
response at a different address, there is no standard way to communicate
the response with the Jakarta XML Web Services client runtime. Hence, there are no
requirements on a Jakarta XML Web Services client runtime to bind non-anonymous responses.
A Jakarta XML Web Services client runtime may start an endpoint to receive a non-anonymous
response and may use the response to bind to the java parameters and
return type. However, it is not required to do so.
This chapter describes the Jakarta XML Web Services XML/HTTP binding. The Jakarta XML Web Services XML/HTTP binding provides raw XML over HTTP messaging capabilities as used in many Web services today.
The XML/HTTP binding is identified by the URL
http://www.w3.org/2004/08/wsdl/http
, which is also the value of the
constant jakarta.xml.ws.http.HTTPBinding.HTTP_BINDING
.
◊ Conformance (XML/HTTP Binding Support): An implementation MUST support the XML/HTTP binding.
An XML/HTTP binding instance allows HTTP-specific configuration in addition to that described in Section 9.2, “Configuration”. The additional information can be configured either programmatically or using deployment metadata. The following subsections describe each form of configuration.
Jakarta XML Web Services only defines APIs for programmatic configuration of client side XML/HTTP bindings – server side bindings are expected to be configured using deployment metadata.
The handler chain for an XML/HTTP binding is configured as described in Section 9.2.1, “Programmatic Configuration”. The handler chain may contain handlers of the following types:
Logical handlers are handlers that implement
jakarta.xml.ws.handler.LogicalHandler
either directly or indirectly.
Logical handlers have access to the entire XML message via the logical
message context.
When using Dispatch
in XML / HTTP binding in payload mode,
attachments specified using the
jakarta.xml.ws.binding.attachments.outbound
property will be included as
mime attachments to the message.
When using Dispatch
in XML / HTTP binding in message mode, the
jakarta.xml.ws.binding.attachments.outbound
property will be ignored.
Dispatch
of type DataSource
should be used to send mime attachments
for the XML / HTTP binding in message mode.
◊ Conformance (Incompatible handlers): An implementation MUST throw
WebServiceException
when, at the time a binding provider is created,
the handler chain returned by the configured HandlerResolver
contains
an incompatible handler.
◊ Conformance (Incompatible handlers): Implementations MUST throw a
WebServiceException
when attempting to configure an incompatible
handler using Binding.setHandlerChain
.
◊ Conformance (Logical handler access): An implementation MUST allow access to the entire XML message via a logical message context.
Jakarta XML Web Services defines no standard deployment model for handlers. Such a model is provided by Jakarta Enterprise Web Services[17].
The XML/HTTP binding implements the general handler framework processing model described in Section 9.3, “Processing Model”.
The following subsections describe HTTP specific requirements for handling exceptions thrown by handlers and service endpoint implementations.
A binding is responsible for catching runtime exceptions thrown by handlers and following the processing model described in section Section 9.3.2, “Handler Execution”. A binding is responsible for converting the exception to a fault message subject to further handler processing if the following criteria are met:
If the exception is an instance of HTTPException
then the HTTP
response code is set according to the value of the statusCode
property. Any current XML message content is removed.
If the exception is of any other type then the HTTP status code is set to 500 to reflect a server class of error and any current XML message content is removed.
Handler processing is resumed as described in section Section 9.3.2, “Handler Execution”.
If the criteria for converting the exception to a fault message subject to further handler processing are not met then the exception is handled as follows depending on the current message direction:
The HTTP status code is set to 500 to reflect a server class of error, any current XML message content is removed and the message is dispatched.
The exception is passed to the binding provider.
Service endpoints can throw service specific exceptions or runtime exceptions. In both cases they can provide protocol specific information using the cause mechanism, see Section 6.4.1, “Protocol Specific Exception Handling”.
A server side implementation of the XML/HTTP binding is responsible for
catching exceptions thrown by a service endpoint implementation and, if
the message exchange pattern in use includes a response to the message
that caused the exception, converting such exceptions to HTTP response
messages and invoking the handleFault
method on handlers for the
response message as described in Section 9.3.2, “Handler Execution”.
Section 11.2.1.3, “Mapping Exceptions to a HTTP Status Code” describes the rules for mapping an exception to a HTTP status code.
When mapping an exception to a HTTP status code, the status code of the HTTP fault message is populated according to the following rules of precedence:
HTTP interactions are request-response in nature. When used for one-way messages, implementations wait for the HTTP response even though there is no XML message in the HTTP response entity body.
◊ Conformance (One-way operations): When invoking one-way operations, an implementation of the XML/HTTP binding MUST block until the HTTP response is received or an error occurs.
Note that completion of the HTTP request simply means that the transmission of the request is complete, not that the request was accepted or processed.
Section 4.2.1.1, “Standard Properties” defines two standard context properties
(jakarta.xml.ws.security.auth.username
and
jakarta.xml.ws.security.auth.password
) that may be used to configure
authentication information.
◊ Conformance (HTTP basic authentication support): An implementation of the XML/HTTP binding MUST support HTTP basic authentication.
◊ Conformance (Authentication properties): A client side implementation MUST support
use of the the standard properties jakarta.xml.ws.security.auth.username
and jakarta.xml.ws.security.auth.password
to configure HTTP basic
authentication.
Section 4.2.1.1, “Standard Properties” defines a standard context property
(jakarta.xml.ws.session.maintain
) that may be used to control whether a
client side runtime will join a session initiated by a service.
A XML/HTTP binding implementation can use three HTTP mechanisms for session management:
To initiate a session a service includes a cookie in a message sent to a client. The client stores the cokkie and returns it in subsequest messages to the service.
To initiate a session a service directs a client to a new URL for subsequent interactions. The new URL contains an encoded session identifier.
The SSL session ID is used to track a session.
◊ Conformance (URL rewriting support) An implementation MUST support use of HTTP URL rewriting for state management.
◊ Conformance (Cookie support): An implementation SHOULD support use of HTTP cookies for state management.
◊ Conformance (SSL session support): An implementation MAY support use of SSL session based state management.
Changed the definition of the discovery process of
javax.xml.ws.spi.Provider
implementation (Section 6.2.1, “Configuration”)
Added @Repeateble
to @WebServiceClientRef
Added missing javadoc
Added @since
to javadoc
Updated references from J2SE to Java SE
Updated that the use of metadata in mime:content
is disabled by
default (Section 2.6.3.1, “mime:content
”)
Updated generated service constructor requirements (section Section 2.7, “Service and Port”,Section 4.1.1.2, “Static case”)
Updated that static or final methods cannot be web methods (section Section 3.3, “Class”)
Added wsam:Action
algorithm and requirements (Section 3.5, “Method”,
Section 3.5.2, “wsam:Action Computation Algorithm”)
Clarified the namespace of the generated JAXB beans (section Section 3.6, “Method Parameters and Return Type”)
Added that packaging wrapper beans optional (section Section 3.6.2.1, “Document Wrapped”)
Added requirements for wsdl:part names in doc/lit wrapper case (Section 3.6.2.1, “Document Wrapped”)
Added that @XmlElement can be specified on doc/lit wrapper method parameters (Section 3.6.2.1, “Document Wrapped”)
Added wsdl:message naming requirements (Section 3.7, “Service Specific Exception”)
Added @XmlType requirements on exception classes (section Section 3.7, “Service Specific Exception”)
Clarified the fault bean’s @XmlType requirements (section Section 3.7, “Service Specific Exception”)
Added that packaging exception beans optional (Section 3.7, “Service Specific Exception”)
Added Use of Addressing requirements in WSDL (Section 3.11, “Service and Ports”)
Added service creation with web service features (section Section 4.1.1.1, “Dynamic case”)
Added W3CEndpointReference requirements (Section 4.2, “jakarta.xml.ws.BindingProvider”, Section 5.2.8, “jakarta.xml.ws.EndpointReference”, Section 5.3, “jakarta.xml.ws.WebServiceContext”, Section 5.4, “jakarta.xml.ws.wsaddressing.W3CEndpointReferenceBuilder”)
Added Use of Addressing requirements in proxies (Section 4.2.3, “Proxies”)
Clarified the empty payload Source for Provider (section Section 5.1, “jakarta.xml.ws.Provider”)
Clarified oneway invocation for Provider endpoints (section Section 5.1.1, “Invocation”)
Added features usage with Endpoint API (Section 5.2.1, “Endpoint Usage”, Section 6.2.2, “Creating Endpoint Objects”)
Added HTTP SPI (Section 6.6, “jakarta.xml.ws.spi.http (HTTP SPI)”)
Clarified that fully qualified class name can be specified for generated exception, service classes customizations (section Section 8.7.4, “PortType Fault Message”, Section 8.7.7, “Service”)
Added clarification that not both input and output messages must be present for wrapper style (section 2.3.1.2).
Added section 2.4.1 W3CEndpointReference
.
Added getPortName(WebServiceFeature…)
method to generated Service
(section 2.7).
Added text describing the need to use customizations to resolve some conflicts (section 3.4).
Added conformance requirement to honor JAXB annotations (section 3.6).
Added conformance requirement for Exceptions that are NOT service specific exceptions (section 3.7).
Added conformance requirement for
BindingProvider.getEndpointReference
(section 4.2).
Added new getPort
methods on Service
that take
WebServiceFeatures
and EndpointReference
(section 4.2.3).
Added text stating that Dispatch
and Provider
based applications
MUST honor WebServiceFeatures
(section 4.3 and 5.1).
Added sections Section 4.5, “jakarta.xml.ws.EndpointReference”, Section 5.2.8, “jakarta.xml.ws.EndpointReference” and Section 6.5.1.1, “jakarta.xml.ws.EndpointReference”
javax.xml.ws.EndpointReference
.
Added section 5.4 on
javax.xml.ws.wsaddressing.W3CEndpointReferenceBuilder
.
Modified description of createEndpoint
method to state to cover case
when no binding is specified (Section 6.2.2, “Creating Endpoint Objects”).
Added Section 6.2.4, “EndpointReferences” EndpointReferences.
Added Section 6.2.5, “Getting Port Objects” Getting Port Objects.
Added Section 6.5, “jakarta.xml.ws.WebServiceFeature” javax.xml.ws.WebServiceFeature.
Added conformance rquirement for unsupported
WebServiceFeatureAnnotations
(section 7).
Added Action
, FaultAction
and WebServiceFeatureAnnotation
annotations (sections 7.12, 7.13 and 7.14).
Added javax.xml.ws.reference.parameters
standard message context
property (table 9.2).
Added Section 10.4.1.5, “Addressing” Addressing.
Removed requirement that the ``name'' element of the WebFault annotation be always present, since this conflicts with 3.7 (section 7.2).
Clarified usage of generics in document wrapped case.
Added inner class mapping requirements.
Rephrased rules on using WebServiceContext so that the limitations that apply in the Java SE environment are marked as such (section 5.3).
Added conformance requirements for RequestWrapper and ResponseWrapper annotations (section 2.3.1.2).
Clarified order of invocation of Handler.close methods (section 9.3.2.3).
Clarified requirement on additional context properties and reserved the java.* and javax.* namespaces for Java specifications (section 4.2.1.2).
Added new binding identifiers for SOAP/HTTP bindings with MTOM enabled (section 10.4.1.1).
Added requirement detailing the semantics of ``MTOM enabled'' (section 10.4.1.1).
Renamed section 5.2.5 and added new requirements around generation of the contract for an endpoint (section 5.2.5).
Fixed example in figure 3.4 and added requirement on XmlType annotation on a generated fault bean (section 3.7).
Removed references to WSDL 2.0 and updated goals to reflect WSDL 2.0 support will be added a future revision of the specification.
Clarified the nillability status of various elements in the Java to WSDL binding (sections 3.6.2.1, 3.6.2.2); this included adding a new conformance requirement (section 3.6.2.3).
Added a requirement that a class annotated with WebServiceProvider must not be annotated with WebService (section 7.7).
Added a conformance requirement for support of the XML/HTTP binding, in analogy with the existing requirements for SOAP (section 11.1).
Added explicit mention of the predefined binding identifiers (sections 10.4.1 and 11.1).
Added requirements around binding identifiers for implementation-specific bindings (section 6.1).
Adding a requirement on dealing with exceptions thrown during handler processing (section 4.2.4).
Removed the javax.xml.ws.servlet.session message context property (section 9.4.1.1).
Fixed erroneous reference to a generated service interface'' in
section 7.9 (the correct terminology is
generated service class'').
Added javax.xml.ws.WebServiceRefs annotation (section 7.10).
Added clarifications for XML / HTTP binding.
Corrected signature for Endpoint.create
to use String for bindingId.
Changed endpoint publishing so that endpoints cannot be stopped and published again multiple times (section 5.2.2).
Clarified that request and response beans do not contain properties corresponding to header parameters (section 3.6.2.1).
Clarified that criteria for bare style take only parts bound to the body into account (section 3.6.2.2).
Add a create(Object implementor) to Endpoint to create an Endpoint.
Clarified the use of INOUT param with two different MIME bindings in the input and output messages.
Use of WebParam and WebResult partName.
Replaced the init/destroy methods of handlers with the PostConstruct and PreDestroy annotations from JSR-250 (section 9.3.1).
Replaced the BeginService/EndService annotations with PostConstruct and PreDestroy from JSR-250 in endpoint implementors (section 5.2.1).
Added WebParam.header WebResult.header usage (section 3.6) and updated WSDL SOAP HTTP Binding section (3.9.2).
Removed requirements to support additional SOAP headers mapping.
Added support for DataSource as a message format for Provider and clarified the requirement for the other supported types (section 5.1). Same thing for Dispatch (section 4.3).
Clarified that LogicalMessageContext.getSource() may return null when there is no payload associated with the message (section 9.4.2).
Clarified that parts bound to mime:content are treated as unlisted from the point of view of applying the wrapper style rules (section 2.6.3).
Removed the ParameterIndex annotation (chapters 3 and 7).
Clarified naming rules for generated wrapper elements and their type (section 3.6.2.1).
Clarified that holders should never be used for the return type of a method (section 2.3.3).
Added effect of the BindingType annotation on the generated WSDL service (sections 3.8 and 3.10).
Added condition that the wrapper elements be non-nillable to wrapper style (section 2.3.1.2).
Clarified use of targetNamespace from WebService in an implementation class and an SEI based on 181 changes.
Updated the usage of WebMethod exclude element from Java to WSDL mapping.
Changed the algorithm for the default target namespace from java to WSDL (section 3.2).
Added requirement that a provider’s constructor be public (section 5.1).
Fixed some inconsistencies caused by the removal of RemoteException (e.g. in section 4.2.4).
Added service delegate requirements to chapter 4.
Added zero-argument public constructor requirement to the implementation-specific Provider SPI class (section 6.2).
Updated use of SOAPBinding on a per method basis in the document style case and removed editor’s note about SOAPBinding not being allowed on methods (section 2.3.1 and 3.6.2) .
Added portName element to @WebServiceProvider annotation.
Added requirement on correctness of annotation to the beginning of chapter 7.
Added requirement for conformance to the JAX-WS profile in JSR-181 (section 7.11).
Clarified invocation of Handler.destroy (section 9.3.1).
Added use of HandlerChain annotation (section 9.2.1.3).
Updated 181 annotations (section 7.11).
Added catalog facility (section 4.2.5) and clarified that it is required to be used when processing endpoint metadata at publishing time (section 5.2.5) and annotations (chapter 7).
Added WebServiceRef annotation (section 7.10).
Added restrictions on metadata at the time an endpoint is published (section 5.2.7).
Replaced HandlerRegistry with HandlerResolver (sections 4.2.1, 9.2.1.1, 10.1.1.2, 11.1.1.1). Fixed handler ordering section accordingly (section 9.2.1.2).
Clarified that endpoint properties override the values defined using the WebServiceProvider annotation (section 5.2.8).
Removed mapping of headerfaults (sections 2.6.2.2 and 8.7.6).
Split standard message context properties into multiple tables and added servlet-specific properties (section 9.4.1.1).
Added WebServiceContext (section 5.3); refactored message context section in chapter 5 so that it applies to all kinds of endpoints.
Added WebServicePermission (section 5.2.5).
Added conformance requirement for one-way operations (section 6.2.2).
Added BindingType annotation (section 7.9).
Added requirement the provider endpoint implementation class carry a WebServiceProvider annotation (section 5.1).
Fixed RequestWrapper and ResponseWrapper description to use that they can be applied to the methods of an SEI (sections 7.4 and 7.5).
Fixed package name for javax.xml.ws.Provider and updated section with WebServiceProvider annotation (section 5.1).
Added WebServiceProvider annotation in javax.xml.ws
package (section
7.8).
Changed Factory pattern to use javax.xml.ws.spi.Provider
Removed javax.xml.ws.EndpointFactory (section 5.2).
Removed javax.xml.ws.Servicefactory (section 4.1).
Removed definition of message-level security annotations (section 7.1), their use (sections 4.2.2 and 6.1.1) and the corresponding message context property (in section 9.4).
Removed WSDL 2.0 mapping (appendices A and B).
Removed references to the RMI classes that JAX-RPC 1.1 used to denote
remoteness, since their role is now taken by annotations:
java.rmi.Remote
and java.rmi.RemoteException
.
Added Section 5.2, “jakarta.xml.ws.Endpoint” on the new Endpoint API.
Added the following new annotation types: @RequestWrapper, @ResponseWrapper, @WebServiceClient, @WebEndpoint.
Added the createService(Class serviceInterface) method to ServiceFactory.
Renamed the Service.createPort method to Service.addPort.
Added MTOMEnabled property to SOAPBinding.
Removed the HTTP method getter/setter from HTTPBinding and replaced them with a new message context property called javax.xml.ws.http.request.method.
In Section 10.2.1, “SOAP mustUnderstand
Processing” clarified that SOAP headers directly
supported by a binding must be treated as understood when processing
mustUnderstand attributes.
Added getStackTrace to the list of getters defined on java.lang.Throwable with must not be mapped to fault bean properties.
In Section 4.2.1.1, “Standard Properties”, removed the requirement that an exception be thrown if the application attempts to set an unknown or unsupported property on a binding provider, since there are no stub-specific properties any more, only those in the request context.
Changed the client API chapter to reflect the annotation-based runtime. In particular, the distinction between generated stubs and dynamic proxies disappeared, and the spec now simply talks about proxies.
Changed JAX-RPC to JAX-WS, javax.xml.rpc.xxx to javax.xml.ws.xxx. Reflected resulting changes made to APIs.
Added new context properties to provide access to HTTP headers and status code.
Added new XML/HTTP Binding, see chapter Chapter 11, HTTP Binding.
Renamed element'' attribute of the jaxws:parameter annotation to
childParameterName'' for clarity, see sections
Section 8.7.3, “PortType Operation” and Section 8.7.6, “Binding Operation”.
Added javax.xml.ws.ServiceMode annotation type, see section Section 7.1, “jakarta.xml.ws.ServiceMode”.
Fixed example of external binding file to use a schema annotation, see Section 8.4, “External Binding File”.
Modified Dispatch so it can be used with multiple message types and either message payloads or entire messages, see Section 4.3, “jakarta.xml.ws.Dispatch”.
Modified Provider so it can be used with multiple message types and either message payloads or entire messages, see section Section 5.1, “jakarta.xml.ws.Provider”.
Added new annotation for generated exceptions, see section Section 7.2, “jakarta.xml.ws.WebFault”.
Added default Java package name to WSDL targetNamespace mapping algorithm, see Section 3.2, “Package”.
Added ordering to properties in request and response beans for doc/lit/wrapped, see Section 3.6.2.1, “Document Wrapped”.
Clarified that SEI method should throw JAX-RPC exception with a cause of any runtime exception thrown during local processing, see section Section 4.2.4, “Exceptions”.
Removed requirement that SEIs MUST NOT have constants, see section Section 3.4, “Interface”.
Updated document bare mapping to clarify that @WebParam
and
@WebResult
can be used to customize the generated global element
names, see Section 3.6.2.2, “Document Bare”.
Added mapping from Java to wsdl:service
and wsdl:port
, see
sections Section 3.8.1, “Interface”, Section 3.10.1, “Interface” and Section 3.11, “Service and Ports”.
Fixed Section 2.4, “Types” to allow use of JAXB interface based mapping.
Added support for document/literal/bare mapping in Java to WSDL mapping, see Section 3.6, “Method Parameters and Return Type”.
Added conformance requirement to describe the expected behaviour when two or more faults refer to the same global element, see section Section 2.5, “Fault”.
Added resolution to issue regarding binding of duplicate headers, see Section 2.6.2.1, “Header Binding Extension”.
Added use of JAXB ns URI to Java package name mapping, see section Section 2.1, “Definitions”.
Added use of JAXB package name to ns URI mapping, see section Section 3.2, “Package”.
Introduced new typographic convention to clearly mark non-normative notes.
Removed references to J2EE and JNDI usage from ServiceFactory description, see [svcfactusage].
Clarified relationship between TypeMappingRegistry and JAXB.
Emphasized control nature of context properties, added lifecycle subsection.
Clarified fixed binding requirement for proxies.
Added section for SOAP proocol bindings Section 10.4, “SOAP Transport and Transfer Bindings”. The HTTP subsection of this now contains much of the mterial from the JAX-RPC 1.1 Runtime Services chapter.
Clarified that async methods are added to the regular sync SEI when async mapping is enabled rather than to a separate async-only SEI, see Section 2.3.4, “Asynchrony”.
Added support for WSDL MIME binding, see section Section 2.6.3, “MIME Binding”.
Clarified that fault mapping should only generate a single exception for each equivalent set of faults, see Section 2.5, “Fault”.
Added property for message attachments.
Removed element references to anonymous type as valid for wrapper style mapping (this doesn’t prevent substitution as orignally thought), see Section 2.3.1.2, “Wrapper Style”.
Removed implementation specific methods from generated service interfaces, see Section 2.7, “Service and Port”.
Clarified behaviour under fault condition for asynchronous operation mapping, see Section 2.3.4.5, “Faults”.
Clarified that additional parts mapped using soapbind:header cannot be mapped to a method return type, see Section 2.3.2, “Parameter Order and Return Type”.
Added new section to clarify mapping from exception to SOAP fault, see Section 10.2.2.3, “Mapping Exceptions to SOAP Faults”.
Clarified meaning of other in the handler processing section, see Section 9.3.2, “Handler Execution”.
Added a section to clarify Stub use of RemoteException and JAXRPCException, see Section 4.2.4, “Exceptions”.
Added new Core API chapter and rearranged sections into Core, Client and Server API chapters.
Changes for context refactoring, removed message context properties that previously held request/response contexts on client side, added description of rules for moving between jaxws context and message context boundaries.
Removed requirement for Response.get to throw JAXRPCException, now throws standard java.util.concurrent.ExecutionException instead.
Added security API information, see sections [servicesecurityconfig] and [bindingmsgsec].
Clarrified SOAP mustUnderstand processing, see section
Section 10.2.1, “SOAP mustUnderstand
Processing”. Made it clear that the handler rather than the
HandlerInfo is authoritative wrt which protocol elements (e.g. SOAP
headers) it processes.
Updated exception mapping for Java to WSDL since JAXB does not envision mapping exception classes directly, see Section 3.7, “Service Specific Exception”.
[1] Tim Bray, Jean Paoli, C. M. Sperberg-McQueen, and Eve Maler. Extensible Markup Language (XML) 1.0 (Second Edition). Recommendation, W3C, October 2000. See http://www.w3.org/TR/2000/REC-xml-20001006.
[2] Don Box, David Ehnebuske, Gopal Kakivaya, Andrew Layman, Noah Mendelsohn, Henrik Nielsen, Satish Thatte, and Dave Winer. Simple Object Access Protocol (SOAP) 1.1. Note, W3C, May 2000. See http://www.w3.org/TR/SOAP/.
[3] Martin Gudgin, Marc Hadley, Noah Mendelsohn, Jean-Jacques Moreau, and Henrik Frystyk Nielsen. SOAP Version 1.2 Part 1: Messaging Framework. Recommendation, W3C, June 2003. See http://www.w3.org/TR/2003/REC-soap12-part1-20030624.
[4] Martin Gudgin, Marc Hadley, Noah Mendelsohn, Jean-Jacques Moreau, and Henrik Frystyk Nielsen. SOAP Version 1.2 Part 2: Adjuncts. Recommendation, W3C, June 2003. See http://www.w3.org/TR/2003/REC-soap12-part2-20030624.
[5] Erik Christensen, Francisco Curbera, Greg Meredith, and Sanjiva Weerawarana. Web Services Description Language (WSDL) 1.1. Note, W3C, March 2001. See http://www.w3.org/TR/2001/NOTE-wsdl-20010315.
[6] Rahul Sharma. The Java API for XML Based RPC (JAX-RPC) 1.0. JSR, JCP, June 2002. See http://jcp.org/en/jsr/detail?id=101.
[7] Jakarta XML RPC Specification 1.1. Eclipse Foundation, September 2019. See https://jakarta.ee/specifications/xml-rpc/.
[8] Keith Ballinger, David Ehnebuske, Martin Gudgin, Mark Nottingham, and Prasad Yendluri. Basic Profile Version 1.0. Final Material, WS-I, April 2004. See http://www.ws-i.org/Profiles/BasicProfile-1.0-2004-04-16.html.
[9] Joseph Fialli and Sekhar Vajjhala. The Java Architecture for XML Binding (JAXB). JSR, JCP, January 2003. See http://jcp.org/en/jsr/detail?id=31.
[10] Joseph Fialli and Sekhar Vajjhala. The Java Architecture for XML Binding (JAXB) 2.0. JSR, JCP, August 2003. See http://jcp.org/en/jsr/detail?id=222.
[11] Kohsuke Kawaguchi. The Java Architecture for XML Binding (JAXB) 2.1. JSR, JCP, August 2003. See http://jcp.org/en/jsr/detail?id=222.
[12] Kohsuke Kawaguchi. The Java Architecture for XML Binding (JAXB) 2.2. JSR, JCP, August 2009. See http://jcp.org/en/jsr/detail?id=222.
[13] Kohsuke Kawaguchi. The Java Architecture for XML Binding (JAXB) 2.3. JSR, JCP, July 2017. See http://jcp.org/en/jsr/detail?id=222.
[14] Roberto Chinnici, Martin Gudgin, Jean-Jacques Moreau, Jeffrey Schlimmer, and Sanjiva Weerawarana. Web Services Description Language (WSDL) Version 2.0 Part 1: Core Language. Working Draft, W3C, August 2004. See http://www.w3.org/TR/2004/WD-wsdl20-20040803.
[15] Joshua Bloch. A Metadata Facility for the Java Programming Language. JSR, JCP, August 2003. See http://jcp.org/en/jsr/detail?id=175.
[16] Jakarta XML Web Services Metadata Specification 3.0. Eclipse Foundation, November 2020. See https://jakarta.ee/specifications/web-services-metadata.
[17] Jakarta Enterprise. Web Services Specification. Eclipse Foundation, November 2020. See http://jcp.org/en/jsr/detail?id=109.
[18] Nataraj Nagaratnam. Web Services Message Security APIs. JSR, JCP, April 2002. See http://jcp.org/en/jsr/detail?id=183.
[19] Jakarta XML Registries Specification 1.0. Eclipse Foundation, September 2019. See https://jakarta.ee/specifications/xml-registries.
[20] Keith Ballinger, David Ehnebuske, Chris Ferris, Martin Gudgin, Canyang Kevin Liu, Mark Nottingham, Jorgen Thelin, and Prasad Yendluri. Basic Profile Version 1.1. Final Material, WS-I, August 2004. See http://www.ws-i.org/Profiles/BasicProfile-1.1-2004-08-24.html.
[21] T. Berners-Lee, R. Fielding, and L. Masinter. RFC 2396: Uniform Resource Identifiers (URI): Generic Syntax. RFC, IETF, March 1997. See http://www.ietf.org/rfc/rfc2396.txt.
[22] S. Bradner. RFC 2119: Keywords for use in RFCs to Indicate Requirement Levels. RFC, IETF, March 1997. See http://www.ietf.org/rfc/rfc2119.txt.
[23] John Cowan and Richard Tobin. XML Information Set. Recommendation, W3C, October 2001. See http://www.w3.org/TR/2001/REC-xml-infoset-20011024/.
[24] Henry S. Thompson, David Beech, Murray Maloney, and Noah Mendelsohn. XML Schema Part 1: Structures. Recommendation, W3C, May 2001. See http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/.
[25] Paul V. Biron and Ashok Malhotra. XML Schema Part 2: Datatypes. Recommendation, W3C, May +2001. See http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/.
[26] Tony Rogers Marting Gudgin, Marc Hadley. Web services addressing 1.0 - core. Recommendation, W3C, May 2006. See http://www.w3.org/TR/2006/REC-ws-addr-core-20060509/.
[27] Marting Gudgin, Marc Hadley, Tony Rogers, and Umit Yalcinalp. Web Services Addressing 1.0 - Metadata. Recommendation, W3C, September 2007. See http://www.w3.org/TR/2007/REC-ws-addr-metadata-20070904.
[28] Asir S Vedamuthu, David Orchard, Frederick Hirsch, Maryann Hondo, Prasad Yendluri, Toufic Boubez, and Umit Yalcinalp. Web Services Services Policy 1.5 - Framework. Recommendation, W3C, September 2007. See http://www.w3.org/TR/2007/REC-ws-policy-20070904.
[29] James Gosling, Bill Joy, Guy Steele, and Gilad Bracha. The Java Language Specification - second edition. Book, Sun Microsystems, Inc, 2000. http://java.sun.com/docs/books/jls/second edition/html/j.title.doc.html.
[30] Martin Gudgin, Noah Mendelsohn, Mark Nottingham, and Herve Ruellan. SOAP Message Transmission Optimization Mechanism. Recommendation, W3C, January 2005. http://www.w3.org/TR/soap12-mtom/.
[31] Martin Gudgin, Noah Mendelsohn, Mark Nottingham, and Herve Ruellan. XML-binary Optimized Packaging. Recommendation, W3C, January 2005. http://www.w3.org/TR/xop10/.
[32] Mark Nottingham. Simple SOAP Binding Profile Version 1.0. Working Group Draft, WS-I, August +2004. See http://www.ws-i.org/Profiles/SimpleSoapBindingProfile-1.0-2004-08-24.html.
[33] Chris Ferris, Anish Karmarkar, and Canyang Kevin Liu. Attachments Profile Version 1.0. Final Material, WS-I, August 2004. See http://www.ws-i.org/Profiles/AttachmentsProfile-1.0-2004-08-24.html.
[34] Norm Walsh. XML Catalogs 1.1. OASIS Committee Specification, OASIS, July 2005. See http://www.oasis-open.org/committees/download.php/14041/xml-catalogs.html.
[35] Rajiv Mordani. Common Annotations for the Java Platform. JSR, JCP, July 2005. See http://jcp.org/en/jsr/detail?id=250.
[36] Jakarta EE Platform 9 Specification. Eclipse Foundation, November 2020. See https://jakarta.ee/specifications/platform.
[37] Tony Rogers Marting Gudgin, Marc Hadley. Web services addressing 1.0 - soap binding. Recommendation, W3C, May 2006. See http://www.w3.org/TR/2006/REC-ws-addr-soap-20060509/.
[38] John Barton, Satish Thatte, and Henrik Frystyk Nielsen. SOAP Messages With Attachments. Note, W3C, December 2000. http://www.w3.org/TR/SOAP-attachments.
[39] Jakarta XML Binding Specification 3.0. Eclipse Foundation, November 2020. See https://jakarta.ee/specifications/xml-binding.
1. Errors that occur during the invocation are reported when the client attempts to retrieve the results of the operation, see Section 2.3.4.5, “Faults”. 2. Jakarta XML Binding maps an element declaration to a Java instance that implements JAXBElement. 3. WS-I Basic Profile R2205 requires parts to refer to elements rather than types. 4. Multiplemime:content
elements for the same part indicate a set of permissible alternate types.
5. The jakarta.jws.WebParam
and jakarta.jws.WebResult
annotations can introduce additional parts into messages when the header
element is true
.
6. Use of RPC
style requires use of WRAPPED
parameter style. Deviations from this is an error
7. The invocation is logically non-blocking so detection of errors during operation invocation is dependent on the underlying protocol in use. For SOAP/HTTP it is possible that certain HTTP level errors may be detected.
8. Outbound exceptions are exceptions thrown by a handler that result in the message direction being set to outbound according to the rules in Section 9.3.2, “Handler Execution”.
9. For a request-response MEP, if the message direction is reversed during processing of a request message then the message becomes a response message. Subsequent handler processing takes this change into account.
10. Next in this context means the next handler taking into account the message direction reversal
11. The handler may have already converted the message to a fault message, in which case no change is made.
12. If the exception is a SOAPFaultException
or has a cause that is a SOAPFaultException
.
13. Jakarta XML Web Services inherits the Jakarta XML Binding support for the SOAP MTOM/XOP mechanism for optimizing transmission of binary data types, see Section 2.4, “Types”.
14. If the exception is a HTTPException
or has a cause that is a HTTPException
.
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