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Subject: Issue - 164 - Variable Types for Throw and Catch

This issue has been added to the wsbpel issue list with a status of "received". The status will be changed to "open" if the TC accepts it as identifying a bug in the spec or decides it should be accepted specially. Otherwise it will be closed without further consideration (but will be marked as "Revisitable")

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Issue - 164 - Variable Types for Throw and Catch

Status: received
Date added: 23 Sep 2004
Categories: Syntax and validation
Date submitted: 23 September 2004
Submitter: Dieter Koenig1
Document: Specification working draft 1.39, Chapter 13.4, "Fault Handlers".
Description: There is a mismatch between throw and catch w.r.t. types of faultVariables.

In a throw activity, one may specify a faultVariable with a NCName of a declared BPEL variable (11.6). Such variables can be declared with exactly one of {messageType, type, element} (9.2).

In catch fault handler, one may specify a faultVariable with a faultMessageType that is a QName of a WSDL message (13.4).

As a result, one cannot catch faults that are thrown with variables declared with type or element.
Submitter's proposal: Add the ability to catch faults that have faultVariables declared with type or element, e.g.:

Option 1:

   <catch faultName="qname"? faultVariable="ncname"?
          faultVariableMessageType="qname"? faultVariableType=qname? faultVariableElement=qname? >

Option 2:

   <catch faultName="qname"? faultVariable="ncname"? >
      <variable name="ncname" messageType="qname"? type=qname? element=qname? />

Option 3:

   <catch faultName="qname"? >
      <variable name="ncname" messageType="qname"? type=qname? element=qname? />

Changes: 23 Sep 2004 - new issue

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