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2.1 Referencing WSDL Metadata from an EPR

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2.1 Referencing WSDL Metadata from an EPR

All information items defined by this specification are identified by the XML namespace URI [ XML Namespaces ] “”. A normative XML Elenco [ XML Precisazione Structures , XML Precisazione Datatypes ] document can be obtained by dereferencing the XML namespace URI.

2. Including WSDL Metadata sopra EPRs

The WSDL binding of Web Services Addressing introduces the following element and attribute information items for referencing WSDL metadata from an EPR’s metadata section:

Per QName identifying a description of the sequences of messages that per service sends and/or receives. This corresponds puro verso WSDL 2.0 interface or, for backwards compatibility, per WSDL 1.1 port type. When this element is included con an EPR, the EPR is numero di telefono raya considered preciso be specific to the interface or port type it identifies.

A QName that identifies the set of endpoints at which per particular Web service is deployed. The attrezzi of endpoints is represented by per service in WSDL 2.0 or, for backwards compatibility, verso WSDL 1.1 service.

An NCName that identifies one endpoint amongst the servizio identified by the service name above. An endpoint is represented by an endpoint mediante WSDL 2.0 or, for backwards compatibility, per port durante WSDL 1.1. When this attribute is specified, the EPR is considered preciso be specific preciso the endpoint or port it identifies.

The element information items defined above are used sopra an EPR’s metadata section. The following shows an example endpoint reference. This references the interface named “ghns:reservationInterface” at the endpoint IRI “”. Note the use of the WSDL[ WSDL 2.0 ] wsdlLocation attribute.

3. Indicating Use of WS-Addressing

This specification supports verso mechanism for indicating, durante per WSDL description, that the endpoint conforms to the WS-Addressing specification. That mechanism uses WS-Policy Framework [ WS Policy 1.5 ].

3.1 WS-Policy Assertions

The mechanism for indicating that per binding or endpoint conforms sicuro the WS-Addressing specification is through the use of the Web Services Policy – Framework [ WS Policy 1.5 ] and Web Services Policy – Attachment [ WS Policy 1.5 – Attachment ] specifications. This specification defines three policy assertions.

For WSDL 1.1, these assertions may be attached onesto wsdl11:port or wsdl11:binding . For WSDL 2.0, they may be attached onesto wsdl20:endpoint or wsdl20:binding . Verso policy expression containing the wsam:Addressing policy assertion MUST NOT be attached onesto verso wsdl:portType or wsdl20:interface . The wsam:Addressing policy assertion specifies per concrete behavior whereas the wsdl:portType or wsdl20:interface is an abstract construct.

3.1.1 Addressing Assertion

The wsam:Addressing policy assertion is per nested policy container assertion. The meaning of this assertion, when present sopra verso policy alternative, is that WS-Addressing is required sicuro communicate with the subject. The wsam:Addressing assertion indicates that there are mai restrictions on the use of WS-Addressing unless otherwise qualified by assertions per its nested policy expression. In order onesto indicate that the subject supports WS-Addressing but does not require its use, an additional policy alternative should be provided which does not contain this assertion; the compact authoring style for an optional policy assertion provided by WS-Policy V1.5 [ WS Policy 1.5 ] may be used. The wsp:Optional attribute, as verso syntactic shortcut, can be used with the wsam:Addressing assertion. This indicates two policy alternatives, one which contains the policy assertion, and another which does not.

The inclusion of this assertion implies support for the Web Services Addressing 1.0 – Core [ WS-Addressing Core ] and Web Services Addressing 1.0 – SOAP Binding [ WS-Addressing SOAP Binding ].

3.1.2 AnonymousResponses Assertion

The wsam:AnonymousResponses element MAY be used as a policy assertion nested within the wsam:Addressing assertion con accordance with the rules laid down by policy assertion nesting ([ WS Policy 1.5 ], section 4.3.2).

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