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WS-Transfer and WS-Mex both have schemas that define EPR types that look something like: <xs:element name="FlexibleEPR"> <xs:complexType> <xs:sequence> <xs:any minOccurs='1' maxOccurs='unbounded' processContents='skip' namespace='##other' /> </xs:sequence> </xs:complexType> </xs:element> Since we have agreed that is *not* a goal of WS-RA to support the Member Submission version of WS-Addressing (200408), these weakly-typed EPRs are unnecessary. Since, in this context, weak types are inferior to strong types (interoperability, message validation, code generation, etc.) these types should be removed and references to them changed to refer to the WS-Addressing 1.0 defined EPR type (i.e. wsa:EndpointReferenceType). Proposal: Remove weak EPRs from WS-T and WS-Mex and replace them with wsa:EndpointReferenceType.
Proposal from http://lists.w3.org/Archives/Public/public-ws-resource-access/2009Jan/0041.html In WS-Transfer, in Appendix I (XSD): Remove the following: <!-- The type of the ResourceCreated is effectively the union of wsa04:EndpointReferenceType and wsa10:EndpointReferenceType. Unfortunately, xs:union only works for simple types. As a result, we have to define the element in an unvalidated way to accommodate either addressing type. --> <xs:element name="ResourceCreated"> <xs:complexType> <xs:sequence> <xs:any minOccurs='1' maxOccurs='unbounded' processContents='skip' namespace='##other' /> </xs:sequence> </xs:complexType> </xs:element> and change the definition of CreateResponseType to: <xs:complexType name="CreateResponseType" > <xs:sequence> <xs:element name="ResourceCreated" type="wsa:EndpointReferenceType" /> <xs:any minOccurs="0" namespace="##other" processContents="lax" /> </xs:sequence> </xs:complexType> In WS-MetadataExchange: In Table 2, lines 73 and 75, change element to <wsa:Address>. Change definition of /mex:Metadata/mex:MetadataSection/mex:MetadataReference to: /mex:Metadata/mex:MetadataSection/mex:MetadataReference This is an endpoint reference to a metadata resource and is of type EndpointReferenceType as defined by WS-Addressing. The resource MUST support the GET operation [WS-Transfer] to allow the retrieval of the metadata unit for the Metadata Section's Dialect and Identifier (if any). When this element is present, it MUST have no element siblings. In Table 6, lines 56 and 58, change element to <wsa:Address>. In Table 7, lines 9 and 11, change element to <wsa:Address>; lines 12 and 20, change element to <wsa:Metadata>. In Appendix I (XML Schema) change the definition of MetadataSection to: <xs:element name="MetadataSection"> <xs:complexType> <xs:choice> <xs:any namespace="##other" processContents="lax" /> <xs:element name="MetadataReference" type="wsa:EndpointReferenceType" /> <xs:element ref='tns:Location' /> </xs:choice> <xs:attribute name='Dialect' type='xs:anyURI' use='required' /> <xs:attribute name='Identifier' type='xs:anyURI' /> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> and remove the following: <!-- Ideally, the type of the MetadataReference would have been the union of wsa04:EndpointReferenceType and wsa10:EndpointReferenceType but unfortunately xs:union only works for simple types. As a result, we have to define the mex:MetadataReference using xs:any. --> <xs:element name='MetadataReference'> <xs:complexType> <xs:sequence> <xs:any minOccurs='1' maxOccurs='unbounded' processContents='lax' namespace='##other' /> </xs:sequence> </xs:complexType> </xs:element>
Resolves 2009-01-20 to resolve with Comment #1