How to get the UserTransaction object in stateless session bean

Question

Hi, I am using jboss server and jdk5 version and using EJB.
My Application flow :
JSP à Action(Struts) à Service Locator à Session bean à Entity Bean(cmp) à DB.
I tried to get the UserTransaction object in my Action. Its my code.
InitialContext ctx = new InitialContext();
UserTransaction uTrans = (UserTransaction) ctx.lookup("java:comp/UserTransaction");
After used uTrans.begin(),uTrans.commit() and uTrans. rollback () also.
Its working fine .
But, I used the the same code inside in my session bean its not working.
Stateless Session Manager Bean code :
public class SampleManagerBean implements SessionBean {
public void ejbCreate() throws CreateException {  }
public void ejbRemove() {  }
public void ejbActivate() {   }
public void ejbPassivate() {   }
public void setSessionContext(SessionContext sessionContext) {
this.sessionContext = sessionContext;
     public void createSample() throws EJBException
     try{
               InitialContext ctx = new InitialContext();
               UserTransaction ut = (UserTransaction) ctx.lookup("java:comp/UserTransaction");
          }catch(Exception e) {
          System.out.println(“ Exception === > “+e)
Its throws the error ie: javax.naming.NameNotFoundException: UserTransaction not bound
How to get the UserTransaction object in my session bean. Kindly give solution the above errors.
- Thendral

Answer 1

first of all, you could just use sessionContext.getUserTransaction(). however, that would only work if your bean is using bean-managed transactions. the default is container-managed transaction, in which case you cannot get a UserTransaction object. if you want to manage transactions, you need to add the TransactionManagementType.BEAN annotation to your ejb.