[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5559) JPA 2 orphanRemoval on OneToOne relation does not work properly
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http://opensource.atlassian.com/projects/hibernate/browse/HHH-5559?page=c...
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Emmanuel Bernard commented on HHH-5559:
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Hi guys, let me paraphrase the issue at hands.
You have an object a pointing to b1 (with the orphanRemoval set on the association).
When a and b are detached, then you replace the association (a.setB(b2);) and expect b1 to
be removed.
We cannot implement that (not efficiently at least) and the spec provision against that
"If the entity being orphaned is a detached, new, or removed entity, the semantics
of
orphanRemoval do not apply."
The reason it's hard is that, we need to query the DB and load b1 to remove it. When
designing the spec, we've decided against forcing such behavior.
So when using orphanRemoval, make sure to work on attached objects.
JPA 2 orphanRemoval on OneToOne relation does not work properly
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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
Attachments: HHH-5559-JPA2-orphanRemoval-on-OneToOne-testcase.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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