How to setup update on cascade in hibernate 4 with javax.persistence.OneToMany?

Question

I use hibernate 4.2.

It doesn't give me hibernate variant of OneToMany annotation, but only javax.persistence.OneToMany.

So I use it as

public class Parent  {
      ...........
    @OneToMany(mappedBy = "parent", fetch = FetchType.LAZY, cascade = { CascadeType.PERSIST, CascadeType.MERGE })
        private Set<Child> children = new HashSet<Child>();

When I do update of Parent I expect children collection to be updated by cascade MERGE.

session.update(parent);

But it doesn't update Child entities of children collection. It only sends update statement for Parent entity.

So how can I update on cascade Child entities of children collection?

I cannot use org.hibernate.annotations.CascadeType because it is not supported by javax.persistence.OneToMany.

score 4 · Accepted Answer · answered Jun 11 '14 at 10:33

If you want to use hibernate's CascadeType, define @Cascade(..) separately on field/method level,

@OneToMany(mappedBy = "parent", fetch = FetchType.LAZY)
@Cascade({CascadeType.PERSIST, CascadeType.MERGE, CascadeType.SAVE_UPDATE}) //example
private Set<Child> children = new HashSet<Child>();

score 1 · Answer 2 · answered Jun 11 '14 at 10:07

Instead of persist or merge did you try with all?.

   @OneToMany(orphanRemoval = true, cascade = {CascadeType.ALL}, fetch = FetchType.LAZY)

Try it just in case that you want to remove this child in case that the father would be removed.

In my example works

How to setup update on cascade in hibernate 4 with javax.persistence.OneToMany?

2 Answers2