Update persistent object in Hibernate

Question

I need to update an Object. I fetch it. The object is a Persistent Object. Now.. If I change any properties, because is a persistent (not detached) object, any varations is immediately saved? I need to call a function? Or when session is flushed, the modification are stored?

Answer 1

If it is a persistent object, the changes will be saved when the session is flushed.