[jboss-dev-forums] [Design of JBoss jBPM] - Re: Knowledge of redelivery

[kukeltje]

anonymous wrote : If a node needs to take additional action on redelivery, for example, then the best thing is to check every time a message is received that that action was or was not performed. 
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You mean some 'duplicate elimination' on the receiving end? That is exactly what we do (and what e.g. the ebMS specs say as well)

anonymous wrote : What might be useful to provide are checkpoints that are persisted (not as the MDB transaction context) that indicate some non-transactional resource was used earlier.
and then use e.g. compensating actions? That is at least what we do.


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