How about a setOrganization(OrganizationLocal) method inside the the user entity?
>I wonder if it is possible to have a method like
>setUser(UserLocal). Or how can I add a single user? The >only possiblity I see in the moment is to get all Users, >add the new user to the collection and set the whole >thing ....
>Is this the way things work?
Yes.. have a method addUser(..) and inside that do getUsers().add(..)