Auditing entities with multiple @Id columns

[nickarls]

Hi,

I have a case of an entity with a composite key mapped in one class with multiple @Id columns. When I stick @Audited on it the entitymanagerfactory fails to build due to a NPE in

Caused by: java.lang.NullPointerException

at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateMappingData(AuditMetadataGenerator.java:305) [:3.5.5-Final]

at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateFirstPass(AuditMetadataGenerator.java:389) [:3.5.5-Final]

Caused by: java.lang.NullPointerException

at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateMappingData(AuditMetadataGenerator.java:305) [:3.5.5-Final]

at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateFirstPass(AuditMetadataGenerator.java:389) [:3.5.5-Final]

any workaround?

[adamw]

Hello,

could you please take a look at:

http://fisheye.jboss.org/browse/Hibernate/core/trunk/envers/src/test/java/org/hibernate/envers/test/integration/ids/CompositeIds.java

and say how does your setup differ from the one in the test? (I suspect you have a multiple id - so the entity to compare is MulIdTestEntity).

Adam

[nickarls]

At first glance it appears that MulIdTestEntity has the @IdClass approach.

Granted, the multiple @Id is hibernate-specific so perhaps I should use @EmbeddedId/@IdClass and separate component key class...

[adamw]

You don't have an @IdClass on your entity? Then how do you retrieve entities by id?

Adam

[nickarls]

I don't have to, a query returns a list and I start working on them by passing them as an EL-parameter into a conversation scoped component that merges them into the extended PC ;-)

But yes, I guess the move to @IdClass would have happened at some point anyway...

[adamw]

Heh Well it should be just adding the annotation plus a simple class. Let me know if adding @IdClass helps (I think it should).

Adam

[nickarls]

Got it rolling on by switching to @EmbeddedId:s. Now it stops at

Caused by: org.hibernate.MappingException: Could not determine type for: custom_yesno, at table: foo_AUD, for columns: [org.hibernate.mapping.Column(active)] which is a custom @Type. Any workarounds for this? ;-)

[adamw]

Does your type implement UserType or similar?

The test case to compare to is now:

http://fisheye.jboss.org/browse/Hibernate/core/trunk/envers/src/test/java/org/hibernate/envers/test/integration/customtype/CompositeCustom.java

Adam