Do I need to keep the Session open while I traverse my object?

I get the following exception while working with my entity after retrieving it from the DB: org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed

I understand this happens because I closed the session which originally created my object and I'm now trying to access the asociated objects out of this session. Do I need to keep the session open all the time?

This are the steps of my code:
1) start session
2) create query
3) execute query
4) Assign result entity to a variable
5) close session
6) create Value object from entity.

Step 6 requires navigating the associations and this causes the error .

Thanks

Hi,

1. Post your code (only the relevant parts).
2. Post your mappings (only the relevant parts).

ofcourse not, you just need to keep it open long enough to get all the data you are going to use out of the database.

So, if you konw you're going to use a collection of an object, then Hibernate.initialize() it before you close the session and move on.

Yes, unless you read from database all traversed objects before closing session.

Look to "Open Session in View pattern"


Delta