NHibernate - access the ID of an associated object without lazy loading the whole object

Question

I have two associated business objects - A and B. the association is (A->B)many-to-one, with B.Id a foreign key in A (so A has A.B_id in the DB).

I\'m using lazy=tru

Answer 1

You can use GetIdentifier method of Nhibernate session :

session.GetIdentifier(obj);