Hibernate version:
3.1.3

I'm following the hibernate reference to save an object :


But the problem is that there is no getTransaction() method associated with the Session object (org.hibernate.Session).

What do you think about the following code :


Do I have to close the session each time I try to access the DB?

I looked in the hibernate3.jar file and it seems there is no getTransaction method in the Session class.

Are you positive that you didn't import org.hibernate.classic.Session by any chance? Netbeans offers that first, if you use code assist, for example.
org.hibernate.classic.Session does not have the getTransaction() method, but org.hibernate.Session does.


I guess that pretty much depends on how you use Hibernate. You don't even have to bother with starting transactions in a managed environment.
If you are not in a managed environment, I think by default commit and rollback will close the session for you. You can change that behaviour, though.
See the API doc for ThreadLocalSessionContext, which is the default CurrentSessionContext.
http://www.hibernate.org/hib_docs/v3/api/org/hibernate/context/ThreadLocalSessionContext.html
Roland

Finally, the problem was my hibernate3.jar file was not a good one. It has been imported by MiddleGenIDE plugin. I replaced it with the jar file from hibernate package download from the site.

As regards the persistance of objects, what method do you recommend when I want to save them to the DB for example.

I looked in the reference about managed environments but I don't understand what it is exactly and I don't know if I'm using such an environment...

I created a HibernateUtil class as explained in the hibernate reference.
If I don't have to bother with starting a transaction, how can I proceed?

A managed environment is a J2EE application server, where you can have EJB-s with declarative transactions. I think you would know if you used them. :)


I'm afraid you will have to bother with transactions. See the reference or your own previous post for an example. If you have the correct jar, the example should work fine. If it is not working, you will have to be more specific about the problem you experience.

Indeed, you're right! I'm not using a managed environment. I'm developing a standalone application.


Thank you. That's the way I will proceed. Now I'm having the correct jar, I can access the getTransaction() method.