Hibernate version: 3

I've been trying to create a mapping to a class which has a composite key. One of the columns of this key is also a discriminator.

Mapping file



When using this mapping, I always end up with this error:org.hibernate.MappingException: Repeated column in mapping for entity: LabelBox column: typeLabel (should be mapped with insert="false" update="false")

Here is the full exception stack trace:
org.hibernate.MappingException: Repeated column in mapping for entity: LabelBox column: typeLabel (should be mapped with insert="false" update="false")
at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:590)
at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:629)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:405)
at org.hibernate.mapping.SingleTableSubclass.validate(SingleTableSubclass.java:43)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1026)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1211)
at org.hibernate.console.ConsoleConfiguration$2.execute(ConsoleConfiguration.java:282)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:56)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:85)
at org.hibernate.console.ConsoleConfiguration.buildSessionFactory(ConsoleConfiguration.java:277)
at org.hibernate.eclipse.console.workbench.LazySessionFactoryAdapter.getChildren(LazySessionFactoryAdapter.java:41)
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:88)
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:94)
at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:207)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)


Is there any way to achieve composite-id + discriminator + subclass ? I don't want to create 2 tables in my database...

Thanks

Did you try doing what the exception suggests ? marking the descriminator with insert=false, update=false. We have faced this kind of exception when two properties are mapped to the same database column , one in composite-key and the other mapped independently.

I was just testing that. I found the insert for discriminator but not the update. I guess that was confusing me.

Works fine. thanks