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Spring / Spring Data Access

Difference between Spring Data-JPA versus JPA.

JPA is a specification while Hibernate is a particular implementation of that specification.

Spring Data JPA is on top of JPA adding another layer of abstraction, standardizing the design for the support of your Persistence Layer in a Spring context. Those defined interfaces (known to Spring) provide the services that the framework handles using JPA to serve the results.

Spring Data JPA is not an implementation or JPA provider, it's just an abstraction used to significantly reduce the amount of boilerplate code required to implement data access layers for various persistence stores. Spring Data JPA always requires the JPA provider such as Hibernate or Eclipse Link.

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