HibernateContext and Transaction

[ansonau]

I have created a Har and depoly with a ear succesfully according to the Jboss doc. http://docs.jboss.org/jbossas/jboss4guide/r2/html/ch13.html

Now, I would like to call Hibernate in servlet and do some saveorupdate ,but I failed.

I tried this code

InitialContext ctx = new InitialContext();
SessionFactory factory = (SessionFactory)
ctx.lookup("java:/hibernate/CaveatEmptorSessionFactory");
Session hsession = factory.openSession();
hsession.saveOrupdate(whatever. . . .. . )

hession.close();


But nothing is saved to database and no exception is throw..


Then , I turned into this...

The getSession method returns a Hibernate session that is linked to the current JTA transaction. Naturally this requires that a JTA transaction exist prior to the call. The following code illustrates the use of getSession.

Session hsession = HibernateContext.getSession("java:/hibernate/CaveatEmptorSessionFactory");

But then I failed and a exception say Icannot start a transaction outside the bind of JTA transaction .

So How do I use the method

Session hsession = HibernateContext.getSession

?

Is it true that I should create a session bean and call the above line in a session bean metod?

If yes, should I set the transaction-type to in the deployment descrptor or something else?
Also, do I need those session.close() or transaction.begin() transaction.commit() code?

[sviluppatorefico]

hi ansonau.....the line

Session hsession = HibernateContext.getSession

is used only in a transaction. It take the current transaction and it continue with it. After if i execute a session.close(), anyhow i have to wait the end of the transaction, if no no commit will be executed.

Then the line

SessionFactory factory = (SessionFactory)
ctx.lookup("java:/hibernate/CaveatEmptorSessionFactory");

create a new transaction and it will be closed by the close() method. No deployment descriptor or other thing can to be used to configure a transaction with hibernate.