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[20210625] @EntityGraph #158

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JuHyun419 opened this issue Jun 25, 2021 · 0 comments

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Spring

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JuHyun419 commented Jun 25, 2021 •

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JPA - @entitygraph

엔티티의 특정 속성을 같이 로딩하도록 표시하는 어노테이션
- attributePaths: 로딩 설정을 변경하고 싶은 속성의 이름을 배열로 명시
- type: @entitygraph를 어떤 방식으로 적용할 것인지 설정
  - FATCH 속성값은 attributePaths에 명시한 속성은 EAGER로 처리하고, 나머지는 LAZY로 처리
  - LOAD 속성값은 attributePaths에 명시한 속성은 EAGER로 처리하고, 나머지는 엔티티 클래스에 명시되거나 기본 방식으로 처리

    //Repository
    @EntityGraph(attributePaths = {"member"}, type = EntityGraph.EntityGraphType.FETCH)
    List<Review> findByMovie(Movie movie);

    // Review Entity
    @ManyToOne(fetch = FetchType.LAZY)
    private Member member;

JuHyun419 added the Spring label

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