Working on Security ACLs with Spring Data query augmentation

• Allow EntityManager from JpaCriteriaQueryContext for determining the id and if it is compound id or not

• Be nice if JpaUpdateContext and JpaCriteriaQueryContext were

  • Symmetrical For example, JpaUpdateContext has EntityManager exposed, but does not have Root, CriteriaBuilder, or CriteriaQuery exposed. And as mentioned above, JpaCriteriaQueryContext does not expose EntityManager.

  • Shared a common parent (class or interface), so that I can modify the query with the same method easily

• See Tests for additional issues (all should pass)