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Subject: Issue - 264 - <correlationSet> specifications on <invoke> with @initiate="no" & @pattern="response" should be invalid


This issue has been added to the wsbpel issue list with a status of "received". The status will be changed to "open" if a motion to open the issue is proposed and that motion is approved by the TC. A motion could also be proposed to close it without further consideration. Otherwise it will remain as "received".

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Issue - 264 - <correlationSet> specifications on <invoke> with @initiate="no" & @pattern="response" should be invalid

Status: received
Date added: 14 Apr 2006
Date submitted: 12 April 2006
Submitter: Prasad Yendluri
Description: The pattern attribute on <correlationSet> specifications is defined for use with the <invoke> activity, to indicate whether the correlation applies to the outbound message (“request”), the inbound message (“response”), or both (“request-response”).

However the specific combination of @pattern="response" and @initiate="no" on an <invoke> should be invalid, as there is no need to supply a correlation set in a reply to an <invoke> if a new correlation set is not being initiated. The reply is automatically correlated with the original invoke and if a new correlation set is not being initiated, it is meaningless to supply a "different" correlation set in the response to the invoke.

In the Examples below (1) is valid but (2) should be invalid.

(1)

<invoke .....>
	<correlations>
             <correlation set="PurchaseOrder" initiate="yes" 
                          pattern="request"/>
             <correlation set="Invoice" initiate="yes" 
                          pattern="response"/>
        </correlations>
</invoke>
(2)

<invoke .....>
	<correlations>
             <correlation set="PurchaseOrder" initiate="yes" 
                          pattern="request"/>
             <correlation set="Invoice" initiate="no" 
                          pattern="response"/>
        </correlations>
</invoke>

Submitter's proposal:

Clarify that for a <CorreltonSet> specification on <invoke> when the "pattern" attribute has the value "response", the "initiate" attribute can only have the value "yes" .
Changes: 14 Apr 2006 - new issue


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