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0 Replies Latest reply: Jun 21, 2012 1:23 AM by 945027 RSS

JPA UserTransaction rollback does not work

945027 Newbie
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I try to describe my environment shortly. Technologies: EJB 3.1, JSF, JBoss 7.1.1

There are Servise-classes (@SessionScoped @Stateful). Servise-classes call Dao classes (@Stateless)

I want :
use EntityManager only into @StateLess beans (Dao)
have short transaction in most cases (like persist, merge)
have one long transaction for some multistep-methods (methods are in Dao also)
have actual (up to date, without first-level cache) data

I have: Pesistense.xml
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/MydataSource</jta-data-source>
<properties>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
</properties>
</persistence-unit>

Dao:

@Stateless
@TransactionManagement(TransactionManagementType.BEAN)
public class UserDaoBean implements UserDAO, Serializable {

@PersistenceContext(name = "MyEntityManager")
private EntityManager em;

@Override
@Transactional
public void update(User user) throws Exception {
User tmpUser = getUser(user.getUser());
//some code, should be rollback, if it is an exception
em.persist(tmpUser);
}

Transaction interceptor
@Transactional
@Interceptor
public class TransactionInterceptor implements Serializable {

@Resource
private UserTransaction userTransaction;

@AroundInvoke
public Object verifyAccess(InvocationContext context) throws
Exception {
Object result = null;

try {
userTransaction.begin();
result = context.proceed();
userTransaction.commit();
} catch (Exception e) {
userTransaction.rollback();
throw new CustomRuntimeException(e.getMessage());
}
return result;
}
}

Problem: If it is throw an Exception into Dao method, part data will save in DB instead of total rollback.

I think, is need Join Transaction to EM. Or disconnect persists each item to the DB right away (using cache). I've try different ways, but didn't have success.

Thanks for in advance!

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