query service

src/main/java/com/example/oneul/domain/post/dao/PostQueryRepository.java

@@ -4,11 +4,13 @@ import java.util.Optional;
 
 import com.example.oneul.domain.post.domain.Post;
 
-import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
-public interface PostQueryRepository extends CrudRepository<Post, Long>{
+public interface PostQueryRepository extends JpaRepository<Post, Long>{
     Optional<Post> findById(Long id);
-    Iterable<Post> findAll();
+    Page<Post> findAll(Pageable pageable);
 }

src/main/java/com/example/oneul/domain/post/service/query/PostQueryService.java

@@ -0,0 +1,10 @@
+package com.example.oneul.domain.post.service.query;
+
+import com.example.oneul.domain.post.domain.Post;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+
+public interface PostQueryService {
+    Page<Post> findAll(PageRequest pageRequest);
+}

src/main/java/com/example/oneul/domain/post/service/query/PostQueryServiceImpl.java

@@ -0,0 +1,24 @@
+package com.example.oneul.domain.post.service.query;
+
+import com.example.oneul.domain.post.dao.PostQueryRepository;
+import com.example.oneul.domain.post.domain.Post;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional
+public class PostQueryServiceImpl implements PostQueryService {
+    private final PostQueryRepository postQueryRepository;
+
+    public PostQueryServiceImpl(PostQueryRepository postQueryRepository){
+        this.postQueryRepository = postQueryRepository;
+    }
+
+    @Override
+    public Page<Post> findAll(PageRequest pageRequest){
+        return postQueryRepository.findAll(pageRequest);
+    }
+}