Hello,

How does lazy loading of collections work across sessions?

I have an object that I load in one session using session.find(....);

It has several collections that are defined with the lazy="true" attribute.

In another transaction, I want to be able to access certain (but not all) of the lazy collections.

I do the following:

// open the session
session.save(myObject); // this appears to lazy-initialize all the collections!

myObject.getACollection();


if I don't do session.save or load or update, then I get an exception that says it failed to lazy initialize the collection - no session.

If I do a session.save, load, or update, then it intializes all the lazy collections.

Is this the way it is meant to work? It seems the only way a lazy collection works is if you find the object within the same session as the one you access the collections within.

Thanks in advance,
-Ben

Lazy loading only working from with a session. The easiest is using the same session otherwise you have to re-associate the object with the new session. Re-associate using session.update() or (2.1) session.lock(). The final option is to disconnect the session and the reconnect it later (for example you may have stored it in a HTTP session).