Hello,

I have an object 'object' mapped to the database with Hibernate. This object has a property, 'property' contains a set 'elements' which is declared as lazy initialized.

This means that when I load the object from our DAO, the set is not initialized.

Later on, when i want to work with it within the presentation layer, I first call my DAO (behind EJBs) and call the following method:

Hibenernate.initialize(object.getProperty().getElements());

H

You can reassociate the object with the session using Session.lock(object, LockMode.NONE)

ouch ! it fails too...

i added the following line before calling Hibernate.initialize(objet.getProperty().getElements()) :

session.lock(object, LockMode.NONE);

and now i get the following error :
net.sf.hibernate.TransientObjectException : attemped to lock a transient instance

Use a recent version of Hibernate (supported since 2.1)