[jboss-user] [JBoss jBPM] - Re: process design advise
do-not-reply at jboss.com
Mon Mar 31 13:12:54 EDT 2008
This raises a point I could use some clarification on.
We ended up removing the unique constraint:
| unique (KEY_, PROCESSDEFINITION_)
from the JBPM_PROCESSINSTANCE table because it was causing a key violation when we started multiple processes using:
| jbpmContext.newProcessInstance(String processDefinitionName)
We don't understand why we had to do that.
If the key must be unique, I would expect to see the key as a parameter in "newProcessInstance(..)" -- in fact, how do you even set the key?!
But in answer to tom_goring's question, he could do what we did, remove the unique constraint, then get the ProcessInstance with the highest version number for that key (or maybe there is another field that indicates that a process is not ended).
I'd like to learn more how this "KEY" is intended to be used, set, etc.
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