Could someone give me some more information on LazyInitializationException or to a good link where i can find some good explaination.

Thanks



Need help with Hibernate? Read this first:
http://www.hibernate.org/ForumMailingli ... AskForHelp

[b]Hibernate version:[/b]

[b]Mapping documents:[/b]

[b]Code between sessionFactory.openSession() and session.close():[/b]

[b]Full stack trace of any exception that occurs:[/b]

[b]Name and version of the database you are using:[/b]

[b]The generated SQL (show_sql=true):[/b]

[b]Debug level Hibernate log excerpt:[/b]


Problems with Session and transaction handling?

Read this: http://hibernate.org/42.html

There's a little bit on it here (and a little more in 19.1.4).

http://www.hibernate.org/hib_docs/v3/re ... ching-lazy

I'll try and explain this with my poor grasp of Hibernate :) In order to save on time & memory, Hibernate by default will only lazyily fetch any associated classes. This means that instead of fetching the class you wanted and all it's associated objects (which could be a lot of objects), it just returns a representation of the associated classes. When this representation is queried it is then that Hibernate goes off and fetches the details of that class.

There was some example code in that link that might help. Basically you have to make sure you are either accessing lazyily instantiated classes within a session, or you ensure the data you required is fetched in a non-lazy way. Chapter 19 of the reference documentation is good for this yet again:

http://www.hibernate.org/hib_docs/v3/re ... e-fetching

Anyway. I hope that helped slightly.