RE: [wsbpel] Issue - 169 - Proposal for Vote

As discussed we should restate the core of this issue as:

The concurrency model for transition condition evaluation is currently
unspecified in cases where multiple links share a single source
activity.  This needs to be clarified.

Satish

-----Original Message-----
From: Yuzo Fujishima [mailto:] 
Sent: Monday, December 06, 2004 9:06 PM
To: ws bpel tc
Subject: [wsbpel] Issue - 169 - Proposal for Vote

Hi,

I would like to propose the following as the resolution for
Issue 169.


A proposed resolution for Issue 169: transition condition error
handling clarification

Modify "12.5.1. Link Semantics" as follows.

After

  NOTE: The transition condition is evaluated after the activity
  has completed. If an error occurs while evaluating the
  transition condition, that error does not affect the
  completion status of the activity and is handled by the source
  activity's enclosing scope.

Insert

  The error also does not affect the status determination of
  other outgoing links. If evaluating all the transition
  conditions results in more than one error, only one that is
  arbitrarily chosen is propagated to the enclosing scope.

Yuzo Fujishima
NEC Corporation

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