ConstraintViolationException VS DataIntegrityViolationException
I am writing a Spring app, and it seems that when I run into database errors, sometimes Hibernate's ConstraintViolationException is thrown and sometimes Spring's DataIntegrityViolationException is thrown. Is there a reason one might be thrown and not the other? Do they mean different things?
If you execute Hibernate calls via the HibernateTemplate , then Spring will translate any Hibernate exceptions (eg ConstraintViolationException ) into the Spring exception hierarchy (eg DataIntegrityViolationException ). If you don't use HibernateTemplate , then the native Hibernate exceptions will go through. Both are RuntimeExceptions , so don't need explicit exception handling, so it's not always obvious which one you're going to see.
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