Ok, I was totally wrong. The whole problem hasn't to do anything with
generics tomcat and so on.... Stupidity makes it a lot easier: I just
didn't use my wonderfull HibernateUtil to close the session but closed
it directly. Sorry!
Regards,
Andi
you were right. The problem was in my HibernateUtil class. I tried to
get a session like this:
public static final ThreadLocal<Session> session = new
ThreadLocal<Session>();
public static Session currentSession() throws HibernateException {
Session s = session.get();
// If there is no session create one
if(s==null){
s = sessionFactory.openSession();
session.set(s);
}
return s;
}
public static void closeSession() throws HibernateException {
Session s = session.get();
if(s != null){
s.close();
}
session.set(null);
}
After removing generics and adding the necessary casts it worked
(though I don't understand the difference yet).
Regards,
Andi
It seems to me that this is more of a hibernate problem than a pluto
problem. really, getting hibernate to work within a portlet should be
no different than doing it within a webapp.
Perhaps a stack trace and/or code snippet would help us get more
specific.
David
On 12/3/05, Andreas Buechler <[EMAIL PROTECTED]> wrote:
Hi,
in my portlet I'm trying to access the db over hibernate. Unfortunately
this doesn't seem to be very reliable (at least how I configured
it...).
After googeling a little I found out that the "Hibernate Reference
Documentation v3.0.5" isn't quite up to date and that you don't
have to
use Tomcat's JNDI-bound JDBC connections anymore [2].
My problem is now that it still doesn't work in a reliable way. The
symptoms are that if I access the portlet for the first time the db
query is (mostly) successful. After that I get
NullPointerExceptions. To
make sure it's not my hibernate code, I tried the same query in
standalone application (without Tomcat/Pluto). It worked without any
problems.
Does anybody have a clue what's going wrong here? How did you get
hibernate to work reliable within your portlet? Any hints or
suggestions
are highly appreciated!
[1]
http://www.hibernate.org/hib_docs/v3/reference/en/html/quickstart.html
[2] http://www.hibernate.org/114.html
Regards,
Andi
