i021 proposal

[Paul Fremantle <paul@wso2.com>]

Proposal regarding issue 021. I'm not quite sure this is right yet, so I 
would appreciate feedback from the Policy experts.

Based on CDII

Delete 142-154 section 2.3 and replace with.

2.3 Assertion Attachment

The RM assertion can have Service, Endpoint, Operation or Message 
Endpoint Policy Subjects [WS-PolicyAttachment].

WS-PolicyAttachment [WS-PolicyAttachment] defines both abstract and 
concrete attachment points in WSDL [WSDL1.1]. Because the RM policy 
assertion specifies a concrete behaviour, it MUST NOT be attached to 
abstract constructs:

    * wsdl:portType
    * wsdl:portType/wsdl:operation
    * wsdl:portType/wsdl:operation/wsdl:input
      • wsdl:portType/wsdl:operation/wsdl:output
      • wsdl:portType/wsdl:operation/wsdl:fault
    * wsdl:message

The RM policy assertion MAY be attached to the following constructs
* wsdl:service
* wsdl:port
* wsdl:binding.
• wsdl:binding/wsdl:operation
• wsdl:binding/wsdl:operation/wsdl:input
• wsdl:binding/wsdl:operation/wsdl:output
• wsdl:binding/wsdl:operation/wsdl:fault

If the RM assertion is attached to the wsdl:service construct, it MUST 
be considered to apply to all the wsdl:port's referenced in the binding.
If the RM assertion is attached to the wsdl:port construct, it MUST be 
considered to apply to all the wsdl:binding's referenced in the port.
If the RM assertion is attached to the wsdl:binding construct, it MUST 
be considered to apply to all the wsdl:operation's referenced in the 
binding.
If the RM assertion is attached to the wsdl:operation construct, it MUST 
be considered to apply to all the wsdl:input's, wsdl:output's and 
wsdl:fault's referenced in the operation.

WS-Addressing allows for policy assertions to be included within an
EndpointReference. Per section 2.2 above, the presence of this
policy assertion in an EPR specifies the level of support for
WS-ReliableMessaging offered by that endpoint.

Paul

-- 

Paul Fremantle
VP/Technology, WSO2 and OASIS WS-RX TC Co-chair

http://bloglines.com/blog/paulfremantle
paul@wso2.com

"Oxygenating the Web Service Platform", www.wso2.com