O S [
http://community.jboss.org/people/gelos] created the discussion
"one of the ways to integrate JPA/Spring with jBPM"
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http://community.jboss.org/message/539262#539262
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I tried to research this before on this forum and I don't think that there is a
consensus on how to make jBPM to work seamlessly with JPA/Spring
We implemented an approach that works for us and I figured I will describe it here and see
if there is any feedback from the community
thanks,
gelos
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- problem overview
- when JPA/Spring is used the desire is to make jBPM to join JPA transactions
seamlessly
- the issue boils down to Hibernate sessions - how to inject sessions managed by Spring
to jBPM
- Spring manages EntityManagerFactory and EntityManager objects and a common approach
(which we use) is to use @PersistenceContext() annotation in DAO objects and have Spring
inject EntityManager instances (which are wrappers around Hibernate sessions) into DAOs
- so we need to get a hold of EntityManager, get the underlying Hibernate session and
provide it to jBPM when it asks for it
- solution overview
- implement custom jBPM wire object for HibernateSession
- in the object descriptor make a call to a bridge object that uses
@PersistenceContext() and is managed by Spring and get Hibernate session from it every
time jBPM needs it
see the attached files for details. code has comments in it
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