Hello all,
now that I've understood how to bootstrap Seam's jBPM support, I'm immediately
facing the next problem.
The root of the problem is that I want to use my own EJB3 entites as jBPM process
variables. I've done some research before, because this is not very well documented
yet, but finally I was successful.
But now I fear that my way how to use jBPM interferes with Seam's way how to support
jBPM.
What I have done with respect to jBPM:
- in my own persistence.xml, I reference jBPM's hibernate.cfg.xml so that my
EntityManager knows about jBPM's entity
- in the same file, I tell Hibernate to register a Session Factory in JNDI
- in jbpm.cfg.xml I tell jBPM to use a JtaDbPersistenceServiceFactory, referencing my
Hibernate Session Factory JNDI name
- in every JbpmContext I create, I inject a Hibernate Session from my EJB3 EntityManager
(jbpmContext.setSession()).
The result is that jBPM uses the EJB3 entity manager for it's work, and there is
absolutely no problem in mixing jBPM entities and my own entities, for example as process
variables.
Now the point where Seam comes into play. Since Seam has some support for jBPM, I wanted
to try it, but was unsuccessful. I configured:
| <bpm:jbpm>
| <bpm:process-definitions>
| <value>Argos3Freigabeprozess/processdefinition.xml</value>
| </bpm:process-definitions>
| </bpm:jbpm>
|
, but on startup I get:
anonymous wrote :
| 09:17:28,787 ERROR [[/Argos3Web]] Exception sending context initialized event to
listener instance of class org.jboss.seam.servlet.SeamListener
| java.lang.RuntimeException: could not deploy a process definition
| [...]
| Caused by: org.hibernate.TransactionException: Could not register synchronization for
container transaction
| at org.hibernate.transaction.CMTTransaction.begin(CMTTransaction.java:45)
|
I am accustomed to this error message; it usually shows up if I forget to inject the
Hibernate Session into a jBPM context. This tells me that my way of configuring jBPM is
not compatible with Seam's way of using jBPM.
Any ideas??
Marcus.
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