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Hibernate problem

 
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Hi, constantly I have a problem of throwing LazyInitializationException.

Either if I use a Spring or low-level comunication with database the mentioned exception is thrown whenever
I try to retrieve an object using -- load(Class klass, id) --.
If I try to retrieve using createQuery(...) method it's than ok, no exception occurs.
Here is the portion of code where I try to retrieve an object using Spring integration :



Where ImprovedEventDao extends abstract class AbstractSpringDao, which extends HibernateDaoSupport :



In low level db comunication, my method for storing and retrieving object is :





where startoperation() mmethond perform obtaining SessionFactory, Sesion and Transaction. Also I get the mentioned
Exception. What is the problem? If I not close session after inserting data, and not commit second startoperation() and
commit() method, I do not get an exception, neither if I use createQuery() method.. But then, two distinct operation occurs during the same session!?
If I use Spring, there is no choice, and each operation will occurs in context of particular Session and Transaction.
so what is the problem!?!?
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