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Hibernate version:2.1.7c

Name and version of the database you are using:MySQL

Hello,
I want to have multiple sessions with the same sessionFactory. In the documentation, they are no exemple when you want multiple sessions.


How do people deal with this type of situation?

My example with a simple session is (a ThreadLocal can contain only one object):

public class HibernateUtil {

private static final SessionFactory sessionFactory;

static {
try {
// Crée la SessionFactory
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (HibernateException ex) {
throw new RuntimeException("Problème de configuration : " + ex.getMessage(), ex);
}
}

public static final ThreadLocal session = new ThreadLocal();

public static Session currentSession() throws HibernateException {
Session s = (Session) session.get();
// Ouvre une nouvelle Session, si ce Thread n'en a aucune
if (s == null) {
s = sessionFactory.openSession();
session.set(s);
}
return s;
}

public static void closeSession() throws HibernateException {
Session s = (Session) session.get();
session.set(null);
if (s != null)
s.close();
}
}

thanks.

What?

I would like to have several sessions for same sessionsFactory. The examples present in doc. make it possible to have only one session.How to have several sessions?

Don't use the examples then.

How to make? I am to oblige to build a table containing all my sessions. And in each method using a openSession(), to pass in parameter the session. No solutions exists in hibernate which makes it possible to contain the sessions of same a sessionFactory?

I really don't understand what you are trying to do. Maybe it helps if you reread what a Session and a SessionFactory is. You can call openSession() as many times as you like.

In the example of Doc., a session is stored in ThreadLocal. A HibernateUtil can thus create only one session.




Have an example managing several sessions?


Thanks. (Sorry ,i am so bad in english)

No, but you can easily store a Map of Sessions in your ThreadLocal.

What we want to know :

With HibernateUtil, there is one hibernate session per thread ( thanks
to ThreadLocal ).

What we want to know :
- Is it possible to have several users at the same time
in the same thread ?
- If yes, as the session manages a jdbc connection, can the jdbc
connection be shared by the different users ?

Thanks

In a Servlet environment there is one thread per request.