[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-256) Entity-driven processes

[Tom Baeyens (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-256?page=comments#action_12348116 ] 
            
Tom Baeyens commented on JBSEAM-256:
------------------------------------

Ah, now i remember.  We had this discussion before.  It all boiled down to wether you want special optimized support for the pattern where you have a process variable called "business key".  The difference is that with process variables, it's stored in a separate table.  So the query will be slightly different.  Currently the datamodel sucks a bit in that respect so finding process instances based on variable values takes too many navigations.  But that is a different issue.  The real issue is whether it is worth to have 1 specially treated string-based user-defined variable that is part of the process instance table and which relates 1-1 with the process instance id.

One of the ideologies of the jBPM guys is that "hibernate should have better support for equals based on the PK" then, there would be no problem that needs fixing :-)

Also, I do not see yet what this business key should bring to the table in terms of features for a jBPM user.  What use cases do you have in mind ?

> Entity-driven processes
> -----------------------
>
>                 Key: JBSEAM-256
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-256
>             Project: JBoss Seam
>          Issue Type: Feature Request
>          Components: BPM
>            Reporter: Gavin King
>         Assigned To: Gavin King
>
> We need new functionality in jBPM to allow us to navigate to a process from an entity related to the process.

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