Using a Seam SLSB in a JBPM action handler?
brombie.wanch.akewan.com Apr 1, 2008 6:05 PMHi all,
My seam project has the jbpm module enabled and I'm wondering how I can get my jbpm action handler to access a Seam component/object.
For example, in my jpdl, I have a transition which has an action handler pointing to test.transitionHandler class.
Inside the transitionHandler.class, I have something like this
Component comp = Seam.componentForName("fruitManager"); assert comp !=null; FruitManager fm= (FruitManager) comp.newInstance(); fm.updateDescription(1, "Apple");
fruitManager is a name of a SLSB. updateDescription() simply updates the description field of the Fruit bean and persist it.
When executed, here's the stack trace that shows:
08:54:28,546 WARN [loggerI18N] [com.arjuna.ats.internal.jta.transaction.arjunacore.lastResource.disallow] [com.arjuna.ats.internal.jta.transaction.arjunacore.lastResource.disallow] Adding multiple last resources is disallowed. Current resource is org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource@17bb117 08:54:28,562 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null 08:54:28,562 ERROR [JDBCExceptionReporter] Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: -3f57fffd:5e1:47f24bc0:1f6 status: ActionStatus.ABORT_ONLY >); - nested throwable: (org.jboss.resource.JBossResourceException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: -3f57fffd:5e1:47f24bc0:1f6 status: ActionStatus.ABORT_ONLY >)) 08:54:28,562 INFO [DefaultLoadEventListener] Error performing load command org.hibernate.exception.GenericJDBCException: Cannot open connection at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:426) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144) at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139) at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1547) at org.hibernate.loader.Loader.doQuery(Loader.java:673) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236) at org.hibernate.loader.Loader.loadEntity(Loader.java:1860) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42) at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3044) at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:395) at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:375) at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:139) at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195) at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103) at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878) at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815) at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808) at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:174) at org.jboss.ejb3.entity.TransactionScopedEntityManager.find(TransactionScopedEntityManager.java:171) at org.jboss.seam.persistence.EntityManagerProxy.find(EntityManagerProxy.java:85) at test.FruitManager.updateDescription(ImageTicketManagerBean.java:737)
Any help is greatly appreciated!