Hi,
let me explain my problem.
I've a little sample application with a servlet, calling a stateless session
bean on jboss 5.0.1
The method on the session bean just tryes to persist an entity bean into the DB
(mySQL)
All that i wanna do is to be able to manage the transaction by myself.
I mean if something happens the transaction has to be committed, else, rolled
back.
I've tryed everithing but the results are:
- if I join the transaction the record is written in any case
- if I don't join the record is not written also il I commit the transaction
I've read a lot around and the code is:
@Stateless(name="WebFacadeBean")
@TransactionManagement(TransactionManagementType.BEAN)
public class WebFacadeBean implements WebFacadeBeanRemote, WebFacadeBeanLocal {
private EntityManager manager;
// BMT idiom
@Resource public UserTransaction userTransaction;
@PersistenceUnit public EntityManagerFactory entityManagerFactory;
public void method() {
try {
manager = entityManagerFactory.createEntityManager();
userTransaction.begin();
manager.joinTransaction();
Ricarica ricarica = new Ricarica();
manager.merge(ricarica);
boolean doTheJob = true
if(!doTheJob)
throw new Exception("Do rollback");
manager.flush();
userTransaction.commit();
} catch (Exception e) {
try {
userTransaction.rollback();
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// TODO Auto-generated catch block
e.printStackTrace();
}
....
PLEASE HELP !!
Thanks a lot.
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