Version: Hibernate 3.0.5/3.0.4,

I can't save my data into database when only use session.flush(), actually, when I run the programe in DEBUG mode and DEBUG it step by step, I can see that there is one record which has been inserted into my tables, but when DEBUG was terminated, the record I saw before had been deleted as well.(there is no error messages)

CODE 1 -- Without persist data
===========================================================
Session session = HibernateSession.currentSession();
Long generatedId = (Long) session.save(v);
session.flush();
===========================================================

But In another hand, everything goes fine when I use a transatcion to commit().

CODE 2 -- It's Ok now
===========================================================
Session session = HibernateSession.currentSession();
Transaction tx = session.beginTransaction();
Long generatedId = (Long) session.save(v);
session.flush();
tx.commit();
===================================================

So, I don't wanna to begin a transaction in my application, what can i do? I haven't meet these problems in Hibernate 2. Thanks very much.

PS: I run my code without an application server, and my development tool is Websphere Studio Application Developer V5.1

Best Regards,

What sort of Transaction Management you are following
CMT or BMT??

Out of curiosity why wouldn't you want to create a transaction?

In hibernate2 you didn't have access to the currentSession so you could always go back to whatever you were doing before to get around transactions but I still don't think you'd want to. Be prepared for Christian to beat you with the transaction stick ;)

I want manage my transaction in another way(such as mamagered by Container). so my base DAO shouldn't create any transaction.

the question is that if i use flush() with out create a transaction, there seems nothing happend on my db.

STEPS:

public static void main(String[] args)

{
.....

session.save(obj);
session.flush();
// when i debug my code, i can saw there was a new row inserted into my table
session.close();

.....

}

// but when my appliation(main()) was terminated, the row was deleted. :(

if my code like this,everything is fine, but i don't wanna create any transaction in my DAO.

public static void main(String[] args)

{
.....

tx = session.beginTransaction();
session.save(obj);
session.flush();
tx.commit();
session.close();

.....

}