[jboss-user] [JBoss jBPM] - The 'correct' way to join application data to a workflow ins

[nathancoast]

My app has a persistent business object model.  I also have a persistent jbpm workflow which describes the status of an entities in my biz model.  

I need to select entities based on their workflow state and their data.  E.g. A global document system where documents are approved by regional editors.  I need to select all documents in the state "awaiting approval" where the document region is EU.

I'm not sure of the correct approach to model this:

1) place the relevant document attributes (doc_id, region) as variables within the workflow.  Search for approval workflow tasks with matching process vars - region = 'EU'.  Necessitates duplication of vars between biz entity and process vars.

2) add an attribute to the doc entity (process_id).  Search for approval workflow tasks, joined to biz model where doc.region = 'EU' and doc.process_id = foo.

3) place the doc_id as a variable in the workflow and query both process and biz database joined by doc_id and were doc.region = 'EU'

Is there a "correct" way to achieve this?

Thanks in advance,
Nathan

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