[Spring-Data-JPA] Top

find와 By사이에 넣으면 된다.

✔ find와 by사이에 top과 first를 제외한 모든 문자는 메소드분석을 통한 sql생성에서 아무런 영향을 주지않는다.

List<Member> findTop3ByAge(int age);

 

@Test
public void topTest() {
    //given
    memberRepository.save(new Member("member3", 10));
    memberRepository.save(new Member("member2", 10));
    memberRepository.save(new Member("member1", 10));
    memberRepository.save(new Member("member4", 10));
    memberRepository.save(new Member("member5", 10));
    int age = 10;

    //when
    List<Member> findMembers = memberRepository.findTop3ByAge(age);

    //then
    for (Member findMember : findMembers) {
        System.out.println("findMember = " + findMember);
    }
    assertThat(findMembers.size()).isEqualTo(3);
}