About getIdentifier
JPA Primary Key
Explains how to define and use primary keys in JPA, including composite and embedded primary keys.... ( ) ; Object projectId = util. getIdentifier getIdentifier(entity) PersistenceUnitUtil's method Return the id of ...
javax.persistence.PersistenceUnitUtil
Utility interface between the application and the persistence provider managing the persistence unit.(Interface of JPA)
Entity listener - event instead of object
Hi, Currently I'm playing with entity listener to implement auditing with difference between values in updated entity. There is a problem however with accessing "old" version of object stored in database. I can't find the nice way to use EntityManager in EntityListener. Because of that, I can't store separate entity for given event. Right now I'm using BaseEntity which contains ... ) ? event. getPersister ( ) . getIdentifier ( event. getEntity ( ) , event. ...
