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Java: Another Open Source Java ORM Tool

Ebean is an open source (LGPL license) Java Object Relational Mapping tool. It uses JPA Annotations (@entity, @OneToMany …) for mapping. It provides a simple API for fetching and saving object graphs.

It’s goal is to provide a simpler alternative to JPA (Java Persistence API) implementations
such as Hibernate and Toplink.

It does this by providing a “sessionless” API and a simpler query language.

That means:

  • No Session Object (or UnitOfWork or EntityManager)
  • No Attached or Detached Beans
  • No merge(), persist(), flush(), or clear(). Instead Ebean has save() and delete()

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