1 Reply Latest reply on Jun 19, 2006 9:33 AM by kukeltje

    jBPM + Container Managed Transactions

    bdepaz
    bdepaz Jun 19, 2006 8:32 AM

      Hi,

      I need some more info on how to setup jBPM using container managed transactions:

      Here's the scenario I'm targeting at:
      A Stateless Session bean containing business methods will instantiate and invoke the JBPM Proces/Context. So I want jBPM to be using the same transaction that is being initiated when a business method on the session bean is being called.

      What I've read from the jBPM userguide, is that I would have to disable transactions in jbpm so it will use container managed transactions. But I can't seem to manage to get it working.

      Here's what I tried so far:
      * hibernate.cfg.xml
      defined the transaction properties.

      <hibernate-configuration>
 <session-factory>

 <!-- jdbc connection properties -->
 <property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
 <property name="hibernate.connection.datasource">jdbc/DefaultDS</property>


      * jbpm.cfg.xml
      Defined the persistence bean, setting the isTransactionEnabled=false, like it is being pointed out in the manual, but that seems to throw UnparsableExcpetions. 

       <jbpm-context>
 <service name="persistence">
 <factory>
 <bean factory="org.jbpm.persistence.db.DbPersistenceServiceFactory">
 <field name="isTransactionEnabled"><false /></field>
 <field name="sessionFactoryJndiName">
 <string value="java:/myHibSessFactJndiName" />
 </field>
 <field name="dataSourceJndiName">
 <string value="jdbc/DefaultDS" />
 </field>
 </bean>
 </factory>
 </service>
 ...
 </jbpm-context>


      The Exception I'm getting seems to mean that still, jBPM is trying to commit it's persistent objects in it's own transaction: 
      19-jun-2006 14:30:09 org.jbpm.svc.Services close
SEVERE: problem closing service 'persistence'
org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171)
 at org.jbpm.svc.Services.close(Services.java:211)
 at org.jbpm.JbpmContext.close(JbpmContext.java:141)
 at be.cm.health.test.facade.MetroFacade.createProcessInstance(MetroFacade.java:94)
 at be.cm.health.test.TestSessionBean.jbpmSetup(TestSessionBean.java:82)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)
 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:69)
 at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:69)
 at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:55)
 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:69)
 at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:69)
 at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:86)
 at TestSession_StatelessSessionBeanWrapper0.jbpmSetup(TestSession_StatelessSessionBeanWrapper0.java:155)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:53)
 at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.hibernate.TransactionException: JDBC commit failed
 at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:130)
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161)
 ... 25 more
Caused by: java.sql.SQLException: The method 'commit' cant be called when a global transaction is active.
 at oracle.oc4j.sql.spi.ConnectionHandle.oc4j_throwSQLExceptionIfGlobalTxActive(ConnectionHandle.java:407)
 at oracle.oc4j.sql.spi.ConnectionHandle.commit(ConnectionHandle.java:122)
 at org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:139)
 at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
 ... 26 more
2006-06-19 14:30:09.603 ERROR J2EE EJB8006 [TestSessionBean:public void be.cm.health.test.TestSessionBean.jbpmSetup()] exception occurred du
ring method invocation: oracle.oc4j.rmi.OracleRemoteException: org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.persis
tence.JbpmPersistenceException: couldn't commit hibernate session}; nested exception is:
 org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.persistence.JbpmPersistenceException: couldn't commit hiberna
te session}


      Can somebody help me out with this? Maybe point me to the right direction on this?

      Note: I'm running all this in an Oracle OC4J container, in case that should matter.

      Kind Regards,

      Bert

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