IllegalStateException with Hibernate 4 and ManyToOne cascading

Question

I\'ve got those two classes

MyItem Object:

@Entity
public class MyItem implements Serializable {

    @Id
    private Integer id;
    @ManyToOne(casc         


        

Answer 1

According to logic in EventCache all entities in object graph should be unique. So the best solution(or is it work around?) is to remove cascade in MyItem to Component. And merge Component separately if it's really needed - I would bet that in 95% of cases Component shouldn't been merged according to business logic.

From other hand - I really interested to know the real thoughts behind that restriction.