Java Persistence API (JPA) with EclipseLink or Apache OpenJPA- Tutorial
von Lars Vogel
http://www.vogella.de/articles/JavaPersistenceAPI/article.html
Java Persistence API (JPA) with EclipseLink or Apache OpenJPA- Tutorial
von Lars Vogel
http://www.vogella.de/articles/JavaPersistenceAPI/article.html