This post explores additional Java ORM mapping features in Hibernate/JPA, focusing on entity association mapping. Make sure to check the earlier posts: part 1, part 2, and part 3.
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Also as a reminder, Hibernate is a powerful and feature-rich library – these posts serve as an overview of how to use some of its features to map Java domain model classes to relational tables. There are other topics that can be looked up in the official documentation.