wsbpel message

Subject: Issue - 96 - Opaque Correlation Sets

From: ws-bpel issues list editor<peter.furniss@choreology.com>
To: wsbpel@lists.oasis-open.org
Date: Tue, 3 Feb 2004 23:45:32 +0000

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Issue - 96 - Opaque Correlation Sets

Status: open
Date added: 3 Feb 2004
Submitter: Yaron Goland
Date submitted: 03 February 2004
Document: Spec - Main
Description: When a BPEL programmer wants to use correlation they define a correlation set which consists of a series of properties. The BPEL programmer then makes sure that when initializing a correlation set the message being used for initialization has the proper values, IDs, etc., inside of it. This is a powerful generic feature that allows BPEL to work with a wide variety of correlation mechanisms. However, protocols are now being introduced to explicitly manage message correlation, for example, ws-addressing. One of the benefits of such protocols is that they free the programmer from having to worry about the details of correlation set definition and value creation. Therefore it would be extremely useful if BPEL, in addition to its existing correlation set mechanism, introduced the ability to define an 'opaque' correlation set. That is, a correlation set whose definition and associated message values are managed by the BPEL engine. An opaque correlation set would only define what protocol it is based on and leave the other details to the BPEL engine. E.g. <correlationSet name="myCor" algorithm="http://somestandards.org/astandard/mechanism"/>
Changes: 3 Feb 2004 - new issue

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