[jboss-user] [EJB/JBoss] - EJB 3 + transaction propagation

[david81]

Hi ,

I am stuck in an issue and need your help on it.

I have an ejb (Bean1) where in a transaction is started.
>From this ejb (Bean1) if I call another ejb(Bean2), and anything wrong happens in Bean2, whole of the transaction is rolled back.
This is controlled by the Jboss.

My query is..
If from Bean1, I make a call to some utility class which makes entires into DB and if an error happens in Bean1 , after utility class commits the DB changes. How can I rollback the changes made in utility class.

In short, how is the transaction in EJB3 propagated to utility class?

I am using hibernate in utility class and the application server used is JBoss4.

I set hibernate.transaction.manager_lookup_class
and set hibernate.transaction.factory_class to org.hibernate.transaction.JTATransactionFactory

My code in utility class..

UserTransaction tx = (UserTransaction)new InitialContext()
.lookup("java:comp/UserTransaction");


try {
tx.begin();

// Do some work
saved object using hibernate session

tx.commit();
}
catch (RuntimeException e) {
tx.rollback();
throw e; // or display error message
}


The logs show issue with tx.begin(); statement..

javax.transaction.NotSupportedException
        at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.begin(BaseTransaction.java:79)

and on the screen I get error
java.lang.IllegalStateException: Wrong tx on thread: expected TransactionImple < ac, BasicAction: -3f5702b4:390d:474aea8d:77 status: ActionStatus.ABORTED >, actual null
        at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:162)
        at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)




Can you please tell what could be the problem?

Any help will be greatly appreciated.

Thanks,

David 

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