Hibernate is not JPA implementation, it exposes its own API. "Hibernate Entity Manager" is a product build on standard Hibernate and offering full JPA interface.
Google App Engine does not support Hibernate: http://groups.google.com/group/google-appengine-java/web/will-it-play-in-app-engine ----------------- Hibernate Versions: All Status: INCOMPATIBLE * You cannot currently use Hibernate directly. The differences between the App Engine datastore and SQL were too great to get the standard Hibernate up and running under App Engine. App Engine does support JDO and JPA, so you may be able to convert your Hibernate code to use one of these ORM interfaces. ----------------- --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---