Merge pull request #79 from onetime-with-members/feature/#78/query-dsl

[feat] : 쿼리 DSL 기능을 추가한다

build.gradle

@@ -30,6 +30,11 @@ dependencies {
     // DB
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     runtimeOnly 'com.mysql:mysql-connector-j'
+    // Query DSL
+    implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
+    annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jakarta"
+    annotationProcessor "jakarta.annotation:jakarta.annotation-api"
+    annotationProcessor "jakarta.persistence:jakarta.persistence-api"
     // Redis
     implementation 'org.springframework.boot:spring-boot-starter-data-redis'
     // Security
@@ -49,3 +54,5 @@ dependencies {
 tasks.named('test') {
     useJUnitPlatform()
 }
+
+def querydslDir = "src/main/generated"

src/main/java/side/onetime/domain/Event.java

@@ -39,15 +39,12 @@ public class Event extends BaseEntity {
     private Category category;
 
     @OneToMany(mappedBy = "event",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<Member> members;
 
     @OneToMany(mappedBy = "event",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<Schedule> schedules;
 
     @OneToMany(mappedBy = "event",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<EventParticipation> eventParticipations;
 
     @Builder

src/main/java/side/onetime/domain/Member.java

@@ -35,7 +35,6 @@ public class Member extends BaseEntity {
     private String pin;
 
     @OneToMany(mappedBy = "member", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<Selection> selections;
 
     @Builder

src/main/java/side/onetime/domain/Schedule.java

@@ -35,7 +35,6 @@ public class Schedule extends BaseEntity {
     private String time;
 
     @OneToMany(mappedBy = "schedule",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<Selection> selections;
 
     @Builder

src/main/java/side/onetime/domain/User.java

@@ -36,11 +36,9 @@ public class User extends BaseEntity {
     private String providerId;
 
     @OneToMany(mappedBy = "user",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<Selection> selections;
 
     @OneToMany(mappedBy = "user",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    @BatchSize(size = 100)
     private List<EventParticipation> eventParticipations;
 
     @Builder

src/main/java/side/onetime/global/config/QueryDslConfig.java

@@ -0,0 +1,18 @@
+package side.onetime.global.config;
+
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class QueryDslConfig {
+    @PersistenceContext
+    private EntityManager entityManager;
+
+    @Bean
+    public JPAQueryFactory jpaQueryFactory() {
+        return new JPAQueryFactory(entityManager);
+    }
+}

src/main/java/side/onetime/repository/EventRepository.java

@@ -2,11 +2,12 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 import side.onetime.domain.Event;
+import side.onetime.repository.custom.EventRepositoryCustom;
 
 import java.util.Optional;
 import java.util.UUID;
 
-public interface EventRepository extends JpaRepository<Event,Long> {
+public interface EventRepository extends JpaRepository<Event,Long>, EventRepositoryCustom {
     Optional<Event> findByEventId(UUID eventId);
     boolean existsByEventId(UUID eventId);
 }

src/main/java/side/onetime/repository/custom/EventRepositoryCustom.java

@@ -0,0 +1,7 @@
+package side.onetime.repository.custom;
+
+import side.onetime.domain.Event;
+
+public interface EventRepositoryCustom {
+    void deleteUserEvent(Event event);
+}

src/main/java/side/onetime/repository/custom/EventRepositoryImpl.java

@@ -0,0 +1,40 @@
+package side.onetime.repository.custom;
+
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import lombok.RequiredArgsConstructor;
+import side.onetime.domain.Event;
+
+import static side.onetime.domain.QEvent.event;
+import static side.onetime.domain.QEventParticipation.eventParticipation;
+import static side.onetime.domain.QMember.member;
+import static side.onetime.domain.QSchedule.schedule;
+import static side.onetime.domain.QSelection.selection;
+
+@RequiredArgsConstructor
+public class EventRepositoryImpl implements EventRepositoryCustom {
+
+    private final JPAQueryFactory queryFactory;
+
+    @Override
+    public void deleteUserEvent(Event e) {
+        queryFactory.delete(selection)
+                .where(selection.schedule.event.eq(e))
+                .execute();
+
+        queryFactory.delete(eventParticipation)
+                .where(eventParticipation.event.eq(e))
+                .execute();
+
+        queryFactory.delete(schedule)
+                .where(schedule.event.eq(e))
+                .execute();
+
+        queryFactory.delete(member)
+                .where(member.event.eq(e))
+                .execute();
+
+        queryFactory.delete(event)
+                .where(event.eq(e))
+                .execute();
+    }
+}

src/main/java/side/onetime/service/EventService.java

@@ -294,6 +294,6 @@ public void removeUserCreatedEvent(String authorizationHeader, String eventId) {
             throw new EventParticipationException(EventParticipationErrorResult._IS_NOT_USERS_CREATED_EVENT_PARTICIPATION);
         }
 
-        eventRepository.delete(event);
+        eventRepository.deleteUserEvent(event);
     }
 }