sca:endpointReference versus wsa:EndpointReference for WS Binding

["Luciano Resende" <luciano_resende@us.ibm.com>]

Is there a particular reason why the ws
binding schema defines it's own endpointReference element based on wsa:EndpointReferenceType
without extending it, instead of just referencing the wsa:EndpointReference
directly ? 

Here is the snipet from the ws binding
xsd :

<complexType name="WebServiceBinding">
        <complexContent>
           
<extension base="sca:Binding">
           
    <sequence>
           
        <element name="endpointReference"
type="wsa:EndpointReferenceType"
           
                 minOccurs="0"
maxOccurs="unbounded"/>
           
        <any namespace="##other" processContents="lax"
           
             minOccurs="0"
maxOccurs="unbounded"/>
           
    </sequence>
           
    <attribute name="wsdlElement" type="anyURI"
use="optional"/>
           
    <attribute ref="wsdli:wsdlLocation" use="optional"/>
           
</extension>
        </complexContent>
    </complexType>

This requires composites to have the
following when configuring the ws binding. Note that although endpointReference
is an element defined from sca namespace, we still need to use the child
elements based on the wsa namespace.

         
      <binding.ws wsdlElement="http://helloworld#wsdl.binding(HelloWorldSoapBinding)">
         
         <endpointReference>
         
            <wsa:Address xmlns:wsa="http://www.w3.org/2005/08/addressing">http://localhost:8085/services/HelloWorldWebService1</wsa:Address>
         
         <endpointReference>
         
      </binding.ws>

[1] http://tools.oasis-open.org/version-control/svn/sca-assembly/SCA_XSDS/sca-binding-ws-1.1-cd04.xsd
[2] http://www.w3.org/2006/03/addressing/ws-addr.xsd

- Luciano

Luciano Resende Open Source SOA - Apache Tuscany 4400 N 1st St, San Jose - CA notes: Luciano Resende/Westford/IBM internet IBM: luciano_resende@us.ibm.com internet ASF: lresende@apache.org	Personal blog @ developerWorks : link Apache Tuscany blog: link
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