[hibernate-issues] [Hibernate-JIRA] Issue Comment Edited: (HHH-7113) NaturalIdLoadAccess not properly working on mutable NaturalId's

[ https://hibernate.onjira.com/browse/HHH-7113?page=com.atlassian.jira.plug... ] Guenther Demetz edited comment on HHH-7113 at 2/28/12 9:28 AM: --------------------------------------------------------------- In my opinion the naturalIdResolutionCacheMap must always be filled using the persister of the declaring class (= the highest class in hierarchy which satisfies the given naturalIdValues), see following example: class A @NaturalId key1 class AA extends A @NaturalId key2 class AAA extends AA --------------------------- assertTrue (session.bySimpleNaturalId(A.class).load(key1) instanceof AAA); // this is possible, //persister of class A should be cache-key: naturalIdResolutionCacheMap.put( persisterA, entityNaturalIdResolutionCache ); assertTrue (session.byNaturalId(AA.class).using("key1", key1).using("key2", key2).load() instanceof AAA); // also this is possible, //persister of class AA should be cache-key: naturalIdResolutionCacheMap.put( persisterAA, entityNaturalIdResolutionCache ); assertTrue (session.byNaturalId(AAA.class).using("key1", key1).using("key2", key2).load() instanceof AAA); //this should produce a in-memory-hit in the NaturalId-cache of persisterAA Thus, similiar to StatefulPersistenceContext#validateNaturalId(EntityPersister persister, Object[] naturalIdValues) we will need a method which returns the correct persister for NaturalId-caching, something like following: private EntityPersister findProperEntityPersisterForNaturalIdValues(EntityPersister persister, Object[] naturalIdValues) { EntityPersister ret = persister; while (persister.hasSuperClassPersister()) { try { validateNaturalId(ret.getSuperClassPersister(),naturalIdValues); ret = ret.getPersisterForSuperClass(); } catch (IllegalArgumentException i) { break; } } return ret; } --- Then modify the puts into naturalIdResolutionCacheMap as follows: naturalIdResolutionCacheMap.put(findProperEntityPersisterForNaturalIdValues(persister,naturalIdValues), entityNaturalIdResolutionCache ); --------------------------------------------- Next thing to consider are updates and deletions. In the example above the instance AAA finally is cached 2 times in NaturalIdCache: once with key1 in the cache of persisterA and another time with key1+key2 in the cache of persisterAA. Thus when deleting instance AAA or updating key1 in the AAA instance, both cache entries have to be synchronized. was (Author: pb00067): In my opinion the naturalIdResolutionCacheMap must always be filled using the persister of the declaring class (= the highest class in hierarchy which satisfies the given naturalIdValues), see following example: class A @NaturalId key1 class AA extends A @NaturalId key2 class AAA extends AA --------------------------- assertTrue (session.bySimpleNaturalId(A.class).load(key1) instanceof AAA); // this is possible, //persister of class A should be cache-key: naturalIdResolutionCacheMap.put( persisterA, entityNaturalIdResolutionCache ); assertTrue (session.byNaturalId(AA.class).using("key1", key1).using("key2", key2).load() instanceof AAA); // also this is possible, //persister of class AA should be cache-key: naturalIdResolutionCacheMap.put( persisterAA, entityNaturalIdResolutionCache ); assertTrue (session.byNaturalId(AAA.class).using("key1", key1).using("key2", key2).load() instanceof AAA); //this should produce a in-memory-hit in the NaturalId-cache of persisterAA Thus, similiar to StatefulPersistenceContext#validateNaturalId(EntityPersister persister, Object[] naturalIdValues) we will need a method which returns the correct persister for NaturalId-caching, something like following: private EntityPersister findProperEntityPersisterForNaturalIdValues(EntityPersister persister, Object[] naturalIdValues) { EntityPersister ret = persister; while (persister.hasSuperClassPersister()) { try { validateNaturalId(ret.getSuperClassPersister(),naturalIdValues); ret = ret.getPersisterForSuperClass(); } catch (IllegalArgumentException i) { break; } } return ret; } -------------------------------------------------------------------------------------------------- Then modify the puts into naturalIdResolutionCacheMap as follows: naturalIdResolutionCacheMap.put(findProperEntityPersisterForNaturalIdValues(persister,naturalIdValues), entityNaturalIdResolutionCache ); Next thing to consider are updated and deletions. In the example above the instance AAA finally is cached 2 times in NaturalIdCache: once with key1 in the cache of persisterA and another time with key1+key2 in the cache of persisterAA. Thus when deleting instance AAA or updating key1 in the AAA instance, both cache entries have to be synchronized. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira