[jsdl-wg] AI-11.29c: WS-Addressing "optionnal tag on extension"

[Michel Drescher]

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Folks,

here's the relevant information how WS-Addressing solved a similar issue
regarding the WS-Addressing binding:

The main WS-Addressing page can be found at
	http://www.w3.org/2002/ws/addr/

The latest published recommendations for WS-Addressing are:
	- WS-Addressing 1.0 - core
	  http://www.w3.org/TR/2006/REC-ws-addr-core-20060509/
        - WS-Addressing 1.0 - SOAP Biding
          http://www.w3.org/TR/2006/REC-ws-addr-soap-20060509/

The third document that completes the WS-Addressing 1.0 specification
family of documents specifies the WSDL Binding. This document, however,
is still a Candidate Recommendation:
	- WS-Addressing 1.0 - WSDL Binding
          http://www.w3.org/TR/2006/CR-ws-addr-wsdl-20060529/

The relevant information can be found in the WSDL Binding document, and in
the accompanying XML Schema definition, which can be found at
	http://www.w3.org/2006/02/addressing/wsdl/ws-addr-wsdl.xsd


Chapter 3.1 of the WSDL Binding document describes the indication of the
use of WS-Addressing in a WSDL document. It defines an empty element
"wsaw:UsingAdddressing" element that allows for composition with any
attribute from other namespaces. In particular, the WS-Addressing 1.0 WSDL
Bining document uses the "wsdl:required" attribute to mix-in the level of
WS-Adddressing enfoorcement.

The "wsaw:UsingAddressing" element SHOULD appear in the wsdl:binding
section, but MAY instead appear in wsdl:port (WSDL 1.1) or wsdl20:endpoint
if WS-Addressing compliance shall be indicated for a specific endpoint.

Cheers,
Michel

- --
Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com
Fujitsu Laboratories of Europe
+44 20 8606 4834
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