Get previous version of entity in Hibernate Envers

Question

I have an entity loaded by Hibernate (via EntityManager):

User u = em.load(User.class, id)

This class is audited by Hibernate Enve

Answer 1

I think it would be this:

final AuditReader reader = AuditReaderFactory.get( entityManagerOrSession );

// This could probably be declared as Long instead of Object
final Object pk = userCurrent.getId();

final List userRevisions = reader.getRevisions( User.class, pk );

final int revisionCount = userRevision.size();

final Number previousRevision = userRevisions.get( revisionCount - 2 );

final User userPrevious = reader.find( User.class, pk, previousRevision );