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	JPA Primary Key : PersistenceUnitUtil util = emf. getPersistenceUnitUtil (); Object projectId = util. getIdentifier (project); A PersistenceUnitUtil instance is obtained from the EntityManagerFactory . The getIdentifier method
	PersistenceUnitUtil.getIdentifier(entity) - JPA Method JPA Method in javax.persistence.PersistenceUnitUtil Object getIdentifier ( Object entity ) Return the id of the entity. A generated id is not guaranteed to be available until after the database insert has occurred. Returns null if the entity does not yet have an id. Parameters
	javax.persistence.PersistenceUnitUtil for this persistence unit or on new entity instances. Since: JPA 2.0 Public Methods Object getIdentifier
	Populating entity id before transaction commit you can force early auto ID setting by: Object id = emf. getPersistenceUnitUtil() . getIdentifier
	Entity listener - event instead of object = event.getPersister().hasIdentifierProperty() ? event.getPersister(). getIdentifier (event.getEntity

JPA Primary Key