Implementing composite keys with JPA and Hibernate

Submitted By: Solrac
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Nowadays, with the widespread use and deployment of Object-Relational Mapping (ORM) tools, you don't generally have to think too hard about such arcane issues as composite keys. Occasionally, you come across a situation where a composite key is required, and you need a strategy for this. This tip shows you how to implement composite keys with JPA and Hibernate.

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