This text file contains sample code fragments from:
Section 18.2 - The EPR Vocabulary
Chapter 18 - Advanced Message Design Part I: WS-Addressing Vocabularies
Book - Web Service Contract Design & Versioning for SOA
Series - Prentice Hall Service-Oriented Computing Series from Thomas Erl
Site - www.soabooks.com


<wsa:EndpointReference
  xmlns:wsa="http://www.w3.org/2005/08/addressing">
  ...
</wsa:EndpointReference>

Example 18.1 - The parent wsa:EndpointReference construct. The opening element establishes the wsa: prefix used by child elements from the WS-Addressing language.


<wsa:EndpointReference
  xmlns:wsa="http://www.w3.org/2005/08/addressing">
  <wsa:Address>
    http://actioncon.com/service
  </wsa:Address>
</wsa:EndpointReference>

Example 18.2 - The wsa:Address element containing the address value of the Web service issuing the EPR.


<wsa:Address>
  http://www.w3.org/2005/08/addressing/anonymous
</wsa:Address>

Example 18.3 - A pre-defined address value used to indicate the anonymous value.


<wsa:Address>
  http://www.w3.org/2005/08/addressing/none
</wsa:Address>

Example 18.4 - The URI for the "none" value used to indicate that messages sent to a specific endpoint will actually not go anywhere.


<wsa:EndpointReference
  xmlns:wsa="http://www.w3.org/2005/08/addressing"
  xmlns:act="http://actioncon.com/referenceIDs">
  <wsa:Address>
    http://actioncon.com/service
  </wsa:Address>
  <wsa:ReferenceParameters>
    <act:Instance>
      1
    </act:Instance>
  </wsa:ReferenceParameters>
</wsa:EndpointReference>

Example 18.5 - The wsa:ReferenceParameters construct containing a custom child element with a parameter value.


<wsa:ReferenceParameters>
  <act:Instance>
    1
  </act:Instance>
  <act:ClientID>
    id-123-456-abc:01:23
  </act:ClientID>
</wsa:ReferenceParameters>

Example 18.6 - The new act:ClientID element is added, constituting a new parameter.


<wsa:EndpointReference
  xmlns:wsa="http://www.w3.org/2005/08/addressing"
  xmlns:act="http://actioncon.com/referenceIDs"
  xmlns:po="http://actioncon.com/contract/po">
  <wsa:Address>
    http://actioncon.com/service
  </wsa:Address>
  <wsa:ReferenceParameters>
    <act:Instance>
      1
    </act:Instance>
  </wsa:ReferenceParameters>
  <wsa:Metadata>
    <wsam:InterfaceName>
      po:ifPurchaseOrder
    </wsam:InterfaceName>
  </wsa:Metadata>
</wsa:EndpointReference>

Example 18.7 - A wsa:ReferenceParameters construct with a nested wsa:Metadata construct containing the wsam:InterfaceName element.