[Week9][Chap4] Feat : 스프링 데이터 jpa 페이징 정렬 (#108)

Tave12st-Backend-Study · Nov 20, 2023 · 56126c5 · 56126c5
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diff --git a/...pring_data_jpa_jinu/data-jpa/src/main/java/study/datajpa/repository/MemberRepository.java b/...pring_data_jpa_jinu/data-jpa/src/main/java/study/datajpa/repository/MemberRepository.java
@@ -1,5 +1,9 @@
 package study.datajpa.repository;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Slice;
+import org.springframework.data.domain.Sort;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
@@ -33,9 +37,20 @@ public interface MemberRepository extends JpaRepository<Member,Long> {
     Optional<Member> findOptionalByUsername(String username);
 
 
+    Page<Member> findPageByUsername(String name, Pageable pageable);
 
+    Slice<Member> findSliceByUsername(String name,Pageable pageable);
 
+    List<Member> findListByUsername(String name,Pageable pageable);
 
+    List<Member> findByUsername(String name, Sort sort);
+
+    Page<Member> findByAge(int age,Pageable pageable);
+
+    Slice<Member> findSliceByAge(int age,Pageable pageable);
+
+    @Query(value = "select m from Member m left join m.team t",countQuery = "select count(m) from Member m")
+    Page<Member> findJoinByAge(int age,Pageable pageable);
 
 
 

diff --git a/...g_data_jpa_jinu/data-jpa/src/test/java/study/datajpa/repository/MemberRepositoryTest.java b/...g_data_jpa_jinu/data-jpa/src/test/java/study/datajpa/repository/MemberRepositoryTest.java
@@ -4,12 +4,17 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Slice;
+import org.springframework.data.domain.Sort;
 import org.springframework.test.annotation.Rollback;
 import org.springframework.transaction.annotation.Transactional;
 import study.datajpa.dto.MemberDto;
 import study.datajpa.entity.Member;
 import study.datajpa.entity.Team;
 
+import javax.swing.plaf.metal.MetalMenuBarUI;
 import java.lang.management.MemoryManagerMXBean;
 import java.util.Arrays;
 import java.util.List;
@@ -155,5 +160,76 @@ public void returnType(){
 
     }
 
+    @Test
+    public void page() throws Exception{
+        memberRepository.save(new Member("member1",10));
+        memberRepository.save(new Member("member2",10));
+        memberRepository.save(new Member("member3",10));
+        memberRepository.save(new Member("member4",10));
+        memberRepository.save(new Member("member5",10));
+
+        PageRequest pageRequest = PageRequest.of(0,3, Sort.by(Sort.Direction.DESC,"username"));
+        Page<Member> page = memberRepository.findByAge(10,pageRequest);
+
+
+
+        List<Member> content=page.getContent();
+        Assertions.assertThat(content.size()).isEqualTo(3);
+        Assertions.assertThat(page.getTotalElements()).isEqualTo(5);
+        Assertions.assertThat(page.getNumber()).isEqualTo(0);
+        Assertions.assertThat(page.getTotalPages()).isEqualTo(2);
+        Assertions.assertThat(page.isFirst()).isTrue();
+        Assertions.assertThat(page.hasNext()).isTrue();
+
+    }
+
+    @Test
+    public void pageJoin() throws Exception{
+        memberRepository.save(new Member("member1",10));
+        memberRepository.save(new Member("member2",10));
+        memberRepository.save(new Member("member3",10));
+        memberRepository.save(new Member("member4",10));
+        memberRepository.save(new Member("member5",10));
+
+        PageRequest pageRequest = PageRequest.of(0,3, Sort.by(Sort.Direction.DESC,"username"));
+        Page<Member> page = memberRepository.findJoinByAge(10,pageRequest);
+
+
+
+        List<Member> content=page.getContent();
+        Assertions.assertThat(content.size()).isEqualTo(3);
+        Assertions.assertThat(page.getTotalElements()).isEqualTo(5);
+        Assertions.assertThat(page.getNumber()).isEqualTo(0);
+        Assertions.assertThat(page.getTotalPages()).isEqualTo(2);
+        Assertions.assertThat(page.isFirst()).isTrue();
+        Assertions.assertThat(page.hasNext()).isTrue();
+
+    }
+
+    @Test
+    public void slice() throws Exception{
+        memberRepository.save(new Member("member1",10));
+        memberRepository.save(new Member("member2",10));
+        memberRepository.save(new Member("member3",10));
+        memberRepository.save(new Member("member4",10));
+        memberRepository.save(new Member("member5",10));
+
+        PageRequest pageRequest = PageRequest.of(0,3, Sort.by(Sort.Direction.DESC,"username"));
+        Slice<Member> page = memberRepository.findSliceByAge(10,pageRequest);
+
+
+
+        List<Member> content=page.getContent();
+        Assertions.assertThat(content.size()).isEqualTo(3);
+        //Assertions.assertThat(page.getTotalElements()).isEqualTo(5);
+        Assertions.assertThat(page.getNumber()).isEqualTo(0);
+        //Assertions.assertThat(page.getTotalPages()).isEqualTo(2);
+        Assertions.assertThat(page.isFirst()).isTrue();
+        Assertions.assertThat(page.hasNext()).isTrue();
+
+    }
+
+
+
 
 }