Hello.

* I have a class (FooPersister) that implements IUserType to permit instances of another class (Foo) to be persisted as a string.
* Among other things, a Foo instance maintains a reference to a FooParent instance. This reference must be restored when a Foo instance is rehydrated.
* In FooPersister.NullSafeSet, I serialize my Foo instance to a string, which includes the ID of its FooParent.
* In FooPersister.NullSafeGet, I need to use the deserialized ID to get a FooParent instance to assign to the newly hydrated Foo instance. To accomplish this I would like to call session.Get(typeof(FooParent), fooParendId) to get the FooParent, but I don't have a session object.
* I don't want my FooPersister class to be application specific, so I can't have it grab a session that my application is keeping in some well-known place.

Does anyone know how I can obtain the appropriate FooParent instance to assign to my rehydrated Foo instance?

(A related question: I note that ICompositeUserType method signatures provide a session. Why is it included there and not in IUserType?)

I searched the forums and NHibernate source code, including its unit tests, but found no example of this kind of thing.

Thanks for any direction. And thanks for the excellent NHibernate.

Dave

Well, I'm just getting back to my pet project today. (Darn day job!)

I see 131 views but no replies. Does this mean that IUserType isn't flexible enough to hydrate anything more than a simple type? I'm surprised if that's the case, because NHibernate seems so flexible. Let me know any thoughts, even if they're not definitive. I won't bump this up again.

Dave

Afaik IUserType is for "simple" types. If you need a more complex type you have to use ICompositeType or IType.