[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5559) JPA 2 orphanRemoval on OneToOne relation does not work properly

[Edmondo Porcu (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=44661#comment-44661 ] 

Edmondo Porcu commented on HHH-5559:
------------------------------------

As I am saying in HHH-4601, it exists a problem when the cascaded entity has auto-generated id.


What happens is that, when persisting or merging an entity with a @OneToOne to an entity with auto generated ID, the id is not updated in the object. Therefore, when you try to delete the parent entity, the child is not deleted correctly, because it is missing the id. If you replace your autogenerated ID in the child entity with a manual ID, all works fine.

> JPA 2 orphanRemoval on OneToOne relation does not work properly
> ---------------------------------------------------------------
>
>                 Key: HHH-5559
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5559
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.5.0.Beta-1, 3.5.0-Beta-2, 3.5.0-Beta-3, 3.5.0-Beta-4, 3.5.0-CR-1, 3.5.0-CR-2, 3.5.0-Final, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0.Beta1, 3.6.0.Beta2, 3.5.5, 3.6.0.Beta3, 3.6.0.Beta4
>         Environment: Hibernate 2.5 (tested with 3.5.4)
>            Reporter: loic descotte
>            Assignee: Emmanuel Bernard
>         Attachments: HHH-5559-JPA2-orphanRemoval-on-OneToOne-testcase.patch, HHH-5559-JPA2-orphanRemoval-on-OneToOne-testcase-revised.patch
>
>
> I have an class A with a oneToRelation with a classe B :
> @Entity
> public class A{
> @OneToOne(cascade = {CascadeType.ALL}, orphanRemoval=true)
> B b;
> ...
> }
> If i do this :
> A a = new A();
> B b1 = new B();
> a.setB(b1);
> em.persist(a);
> B b2 = new B();
> a.setB(b2);
> em.update(a);
> As b1 become an orphan, Hibernate should remove it from the database. But it still remains in the DB.

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