[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3729) @AuditJoinTable annotation has no effect for embedded concrete subclasses of a MappedSuperClass

[Erik-Berndt Scheper (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=32282#action_32282 ] 

Erik-Berndt Scheper commented on HHH-3729:
------------------------------------------

OK, it took me some time to reproduce this. I think some explanation is required for this testcase, as it is quite elaborate. 

The main test class to be called is VersionsJoinTableRangeComponentNamingTest.java
*The test persists an instance of VersionsJoinTableRangeComponentTestEntity.java (the main entity).
*This entity contains two embedded components of type VersionsJoinTableRangeComponent.
*The embedded component contains a property 'range' which is a List of Entity-instances.
*All properties of these entities are audited. Because of the List inside the component, envers generates two audit join tables. This is correct.

Ultimately, what I want to achieve is to rename these audit join tables, using the Envers @AuditJoinTable annotation.
This works perfectly fine in simple cases, but not here. Understandably, I cannot add the @AuditJoinTable to the component, because that leads to an "org.hibernate.DuplicateMappingException: Duplicate class/entity mapping", because the component is used twice.
For JoinColumns, there is the JPA standard annotation 
	@AssociationOverride(name="range", joinColumns={@JoinColumn(name = "VJTRCTE1_ID", insertable = true, updatable = false, nullable = false)})
which I use in the 'main' entity.

My original report meant to say that the following @AuditJoinTable annotation to the entity has no effect (as demonstrated in the testcase).
	@org.hibernate.envers.AuditJoinTable(name = "JOIN_TABLE_COMPONENT_1_AUD", inverseJoinColumns = @JoinColumn(name = "VJTRTE_ID")


However, to maintain consistency with the JPA-spec, I now believe is that we need an extra annotation for the override, like so
	@AuditJoinTableOverride(name="range", auditJoinTable=@org.hibernate.envers.AuditJoinTable(name = "JOIN_TABLE_COMPONENT_1_AUD", inverseJoinColumns = @JoinColumn(name = "VJTRTE_ID"))

But I am open to all suggestions.

> @AuditJoinTable annotation has no effect for embedded concrete subclasses of a MappedSuperClass
> -----------------------------------------------------------------------------------------------
>
>                 Key: HHH-3729
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3729
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: envers
>    Affects Versions: 3.4
>            Reporter: Erik-Berndt Scheper
>         Attachments: envers-HHH-3729-testcase.zip
>
>
> In the situation where I have a Person entity who has 2 different embedded addresses, like so:
> @Embedded
> @org.hibernate.envers.Audited
> @org.hibernate.envers.AuditJoinTable(name="JB_PSN_CORRESP_ADDRESS_AUD")
> private final List<CorrespondenceAdress> correspondenceAddresses;
> @Embedded
> @org.hibernate.envers.Audited
> @org.hibernate.envers.AuditJoinTable(name="JB_PSN_RESIDENTIAL_ADDRESS_AUD")
> private final List<ResidentialAdress> residentialAddresses;
> Where both CorrespondenceAdress and ResidentialAdress extend Address, which is an abstract MappedSuperclass
> @MappedSuperclass
> @org.hibernate.annotations.ForceDiscriminator
> @org.hibernate.envers.Audited
> public abstract class Adress
> I find that the AuditJoinTable annotation has no effect

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