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Why does Hibernate use JPA?

Swerrgy Smith
Ranch Hand

Joined: Mar 26, 2010
Posts: 91
Hi all,

I would like to know why does Hibernate use JPA while both of them are data persistence frameworks?
Does that mean there is a tight coupling between Hibernate and JPA?
I read that JPA is the interface while Hibernate is the actual implementation, but it seems that the annotations which they provide (@Table, @Column ...) is in an actual library (javax.persistence ...) and not just interface.

For example, when we declare an entity in Hibernate, we use JPA annotation like below:

Thank you very much.
Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 62141

Hibernate doesn't use JPA, it is a JPA implementation. So yes, it provides the implementations for the JPA interfaces.

It also has its own proprietary API and set of annotations.

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I agree. Here's the link:
subject: Why does Hibernate use JPA?