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JPA
What is it ?
Standard way to access data layer providing a JPA provider
Hibernate
EclipseLink
OpenJPA
…
JPA Query language (JPQL)
Focus on mappings and relationships
What is it not ?
Adressing boilerplate code
getters and setters on your entities
EntityManagerFactory.getTransaction.begin(), persist(), commit() and close()
Lots of try ctach …