Mario Ivankovits schrieb: > Hi! >> session.lock(object, LockMode.NONE) > This might also fail if the object already exists in the current > session, no? > > You can safely reattach the object using > > object = session.merge(object) > > Though, you really should discard the old object then and work further > with the new one. > Just to add additional comments. Session merge is a convenience method introduced in Hiberante 3.1 (and EJB3) due to the fact that the having an object coming in over session boundaries and doing a simple save or update simply caused to many problems (constantly clashes with objects already loaded by predecessing queries)
Thus session.merge und session.persist were introduced.
