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Tutorial - No session currently bound... error

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am2605

Post subject: Tutorial - No session currently bound... error

Posted: Wed Nov 05, 2008 10:25 am

Newbie

Joined: Mon Nov 03, 2008 6:14 am
Posts: 3

Hi,

I'm new to hibernate and having some trouble running the "first Hibernate Application" in hibernate-distribution-3.3.1.GA (hibernate-distribution-3.3.1.GA\project\tutorials\web)

The web app works fine, but when I try and run it as a standalone app (ie. running the EventManager class passing in the param "store" or "list") I get the error:

Code:

Exception in thread "main" org.hibernate.HibernateException: No session currently bound to execution context
   at org.hibernate.context.ManagedSessionContext.currentSession(ManagedSessionContext.java:74)
   at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:574)
   at org.hibernate.tutorial.web.EventManager.listEvents(EventManager.java:78)
   at org.hibernate.tutorial.web.EventManager.main(EventManager.java:20)

I tried with Hibernate 3.2 and that works. Any suggestions on what I need to do in order to run this as a standalone app in 3.3.1 please?

Many thanks,
Andrew.

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am2605

Post subject:

Posted: Wed Nov 05, 2008 11:05 pm

Newbie

Joined: Mon Nov 03, 2008 6:14 am
Posts: 3

Hi,

I've been able to work this out for myself. The difference between the code in 3.2 and 3.3.1 seems to be this line in hibernate.cfg.xml:

In 3.3.1:

Code:

<property name="current_session_context_class">org.hibernate.context.ManagedSessionContext</property>

In 3.2:

Code:

<property name="current_session_context_class">thread</property>

Changing it back to "thread" seemed to fix the error I was seeing. I'm still too new to this to understand what it means, but at least I can start playing now. :-)

Thought I'd post this in case it helps others...

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am2605

Post subject:

Posted: Thu Nov 06, 2008 5:23 am

Newbie

Joined: Mon Nov 03, 2008 6:14 am
Posts: 3

Maybe I'm just talking to myself here but...now I've fallen over at the next step.

If I call EventManager with the parameter "addpersontoevent", I am now getting this error:

Code:

Exception in thread "main" org.hibernate.LazyInitializationException: could not initialize proxy - no Session
   at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:86)
   at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:140)
   at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
   at org.hibernate.tutorial.domain.Event_$$_javassist_0.getParticipants(Event_$$_javassist_0.java)
   at org.hibernate.tutorial.domain.Person.addToEvent(Person.java:72)
   at org.hibernate.tutorial.web.EventManager.addPersonToEvent(EventManager.java:112)
   at org.hibernate.tutorial.web.EventManager.main(EventManager.java:30)

It only happens in the 3.3.1 code, not in the 3.2 example.

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JeremyGood

Post subject: THANKS!

Posted: Tue Feb 17, 2009 10:43 pm

Newbie

Joined: Tue Feb 17, 2009 10:41 pm
Posts: 1

Your post about problems with the tutorial was helpful to me. I had the same problem with the " org.hibernate.HibernateException: No session currently bound to execution context" message. Changing the entry to "thread" fixed it.

I see you encountered another problem. Did you ever get that resolved?

Thanks,
Jeremy

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