[jboss-user] [jBPM] - Re: Drools, Spring integration and JTA in container

[Fabio Wang]

Fabio Wang [http://community.jboss.org/people/fabiowg] created the discussion

"Re: Drools, Spring integration and JTA in container"

To view the discussion, visit: http://community.jboss.org/message/598937#598937

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Hi there,

After some time struggling to make this "Spring + JTA + Drools" integration, I could make it work, but I'm still unsure if it's the right way. As everyone pointed out, the SingleSessionComand#initTransactionManager ignores the case where a org.springframework.transaction.jta.JtaTransactionManager is used. So I had to manually create an Environment like this:

Environment environment = EnvironmentFactory.newEnvironment();
environment.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
DroolsSpringTransactionManager jtaTransactionManager = new DroolsSpringTransactionManager(ptm);
this.environment.set(EnvironmentName.TRANSACTION_MANAGER, jtaTransactionManager);
DroolsSpringJpaManager pcm = new DroolsSpringJpaManager(environment);
environment.set(EnvironmentName.PERSISTENCE_CONTEXT_MANAGER, pcm);


And, after that, I create my ksession (unfortunately, without the <drools:ksession/> shortcut):

ksession = JPAKnowledgeService.newStatefulKnowledgeSession(this.kbase, null, environment);


Hope this helps.
Fábio
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