feat(volunteer): volunteer Repository 구조 변경 및 조회 기능 추가

Author: ayoung-dev

src/main/java/com/somemore/volunteer/repository/VolunteerJpaRepository.java

@@ -0,0 +1,12 @@
+package com.somemore.volunteer.repository;
+
+import com.somemore.volunteer.domain.Volunteer;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+import java.util.UUID;
+
+public interface VolunteerJpaRepository extends JpaRepository<Volunteer, Long> {
+    Volunteer findById(UUID id);
+    Optional<Volunteer> findByOauthId(String oauthId);
+}

src/main/java/com/somemore/volunteer/repository/VolunteerRepository.java

@@ -1,14 +1,16 @@
 package com.somemore.volunteer.repository;
 
 import com.somemore.volunteer.domain.Volunteer;
-import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 import java.util.Optional;
 import java.util.UUID;
 
 @Repository
-public interface VolunteerRepository extends JpaRepository<Volunteer, UUID> {
-
+public interface VolunteerRepository {
+    Volunteer save(Volunteer volunteer);
+    Volunteer findById(UUID id);
+    String findNicknameById(UUID id);
     Optional<Volunteer> findByOauthId(String oauthId);
+    void deleteAllInBatch();
 }

src/main/java/com/somemore/volunteer/repository/VolunteerRepositoryImpl.java

@@ -0,0 +1,49 @@
+package com.somemore.volunteer.repository;
+
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import com.somemore.volunteer.domain.QVolunteer;
+import com.somemore.volunteer.domain.Volunteer;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+
+import java.util.Optional;
+import java.util.UUID;
+
+@RequiredArgsConstructor
+@Repository
+public class VolunteerRepositoryImpl implements VolunteerRepository{
+
+    private final VolunteerJpaRepository volunteerJpaRepository;
+    private final JPAQueryFactory queryFactory;
+
+    @Override
+    public Volunteer save(Volunteer volunteer) {
+        return volunteerJpaRepository.save(volunteer);
+    }
+
+    @Override
+    public Volunteer findById(UUID id) {
+        return volunteerJpaRepository.findById(id);
+    }
+
+    @Override
+    public String findNicknameById(UUID id) {
+        QVolunteer volunteer = QVolunteer.volunteer;
+
+        return queryFactory
+                .select(volunteer.nickname)
+                .from(volunteer)
+                .where(volunteer.id.eq(id))
+                .fetchOne();
+    }
+
+    @Override
+    public Optional<Volunteer> findByOauthId(String oauthId) {
+        return volunteerJpaRepository.findByOauthId(oauthId);
+    }
+
+    @Override
+    public void deleteAllInBatch() {
+        volunteerJpaRepository.deleteAllInBatch();
+    }
+}