[hibernate-issues] [Hibernate-JIRA] Created: (HHH-7133) NaturalIdLoadAccess not correctly working on mutable NaturalId's

[Guenther Demetz (JIRA)]

NaturalIdLoadAccess not correctly working on mutable NaturalId's
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                 Key: HHH-7133
                 URL: https://hibernate.onjira.com/browse/HHH-7133
             Project: Hibernate ORM
          Issue Type: Bug
          Components: core
    Affects Versions: 4.1.0
         Environment: Hibernate4.1.0, db independent (HSQLDB used in attached testcase) 
            Reporter: Guenther Demetz
         Attachments: TestCaseModifieableNaturalId.jar

1.  After updating the value of a mutable NaturalId, the entity object can be retrieved with the new value, but also with the old value.

    assertNotSame(session.bySimpleNaturalId(C.class).load("1"), session.bySimpleNaturalId(C.class).load("3")); --> failing 

    Cause: On deletions the internal NaturalId cache get synchronized properly, but not on modifications (no synchronization provided at all)

2. When inserting or deleting an entity object, the entity-persister of the object's concrete class is considered as cache-region.
   When loading an entity object by NaturalId,   indeed the entity-persister of the declaring class is considered as cache-region.  

    Session.byNaturalId(declaringclass).load(...)

    As declaringclass may be the superclass of a concrete subclass, 
    the NaturalId-synchronisation (currently called only on deletions) does synchronize the wrong cache-region.
    (it tries to remove the entry in the cache-region of the subclass-persister, 
     but the entry is actually cached in the cache-region of the superclass persister)


N.B: This issue has nothing to do with spreading @NaturalId across an entity hierarchy (HHH-7129),
in attached testcase the NaturalId is declared exclusively in the root class.


Attached testcase demonstrates both bugs.

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