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In this tutorial, we’re going to cover the use of the @EmbeddedId annotation and “findBy” method for querying a composite key based JPA entity. Hence we’ll be using @EmbeddeId and @Embeddable annotations to represent composite keys in JPA entities. We also need to use Spring JpaRepository to achieve our goal. We’ll concentrate on querying objects by partial primary key.

#spring #java #web-development

baeldung.com

Spring JPA @Embedded and @EmbeddedId

Learn how to use the @EmbeddeId and @Embeddable annotations to represent composite keys in JPA entities. In this tutorial, we're going to cover the use of the @EmbeddedId annotation and “findBy” method for querying a composite key based JPA entity. Hence we'll be using @EmbeddeId and @Embeddable annotations to represent composite keys in JPA entities. We also need to use Spring JpaRepository to achieve our goal. We'll concentrate on querying objects by partial primary key.

5.15 GEEK