JPA one-to-many filtering

Question

We are nesting several entities. However upon retrieving we only want to get those entities which are active.

@Entity
public class System {
  @Id
  @Column(name          


        

Answer 1

AFAIK there is no portable JPA-based way to do this. A clean, however a little bit inefficient, solution would be to do everything on Java-side and create a getter getActiveSystemproperties() that manually iterates over mapped systempropertys and returns an immutable set of active properties.