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Hibernate version: 3.0.5
Inside an PostUpdate Event listener I call isModified on EntityPersister to find the values that have been changed. A many-to-one relationship that I have is always identified as modified. (incorrectly) When I get down to it the problem appears to be that when calling equals() on that many-to-one object (called Person) It calls the Person.equals(), but instead of providing it with another Person, it is providing it with a java.lang.Long that is the ID of that Person...
It appears that the ManyToOneType.isModified calls AbstractType.isModified() passing the old value (as a Person) but calling getIdentifier(current, session) to get the identifier property of the current. I winds up trying to determine if Person and a Long are equal...obviously they are not.
Does anyone have any clue as to why it does this? It seems wrong.
Here is a stack trace that shows how it gets there
Code:
at phase2.domain.Person.equals(Ljava.lang.Object;)Z(Person.java:49)
at phase2.domain.Person$$FastClassByCGLIB$$b5bfa048.invoke(ILjava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(<generated>:???)
at net.sf.cglib.proxy.MethodProxy.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(Ljava.lang.Object;Ljava.lang.reflect.Method;[Ljava.lang.Object;Lnet.sf.cglib.proxy.MethodProxy;)Ljava.lang.Object;(CGLIBLazyInitializer.java:137)
at phase2.domain.Person$$EnhancerByCGLIB$$7e73c2f9.equals(Ljava.lang.Object;)Z(<generated>:???)
at org.hibernate.util.EqualsHelper.equals(Ljava.lang.Object;Ljava.lang.Object;)Z(EqualsHelper.java:10)
at org.hibernate.type.NullableType.isEqual(Ljava.lang.Object;Ljava.lang.Object;)Z(NullableType.java:118)
at org.hibernate.type.NullableType.isEqual(Ljava.lang.Object;Ljava.lang.Object;Lorg.hibernate.EntityMode;)Z(NullableType.java:114)
at org.hibernate.type.AbstractType.isSame(Ljava.lang.Object;Ljava.lang.Object;Lorg.hibernate.EntityMode;)Z(AbstractType.java:103)
at org.hibernate.type.AbstractType.isDirty(Ljava.lang.Object;Ljava.lang.Object;Lorg.hibernate.engine.SessionImplementor;)Z(AbstractType.java:69)
at org.hibernate.type.AbstractType.isModified(Ljava.lang.Object;Ljava.lang.Object;Lorg.hibernate.engine.SessionImplementor;)Z(AbstractType.java:99)
at org.hibernate.type.ManyToOneType.isModified(Ljava.lang.Object;Ljava.lang.Object;Lorg.hibernate.engine.SessionImplementor;)Z(ManyToOneType.java:118)
at org.hibernate.type.TypeFactory.findModified([Lorg.hibernate.tuple.StandardProperty;[Ljava.lang.Object;[Ljava.lang.Object;ZLorg.hibernate.engine.Sessi
onImplementor;)[I(TypeFactory.java:455)
at org.hibernate.persister.entity.BasicEntityPersister.findModified([Ljava.lang.Object;[Ljava.lang.Object;Ljava.lang.Object;Lorg.hibernate.engine.Sessio
nImplementor;)[I(BasicEntityPersister.java:2566)
at phase2.store.ChangeListener.onPostUpdate(Lorg.hibernate.event.PostUpdateEvent;)V(ChangeListener.java:39)
I would be happy to provide any other info desired.
I'm real stumped an would appreciate any insight,
Frank
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