BAEL-6320: format & code review

persistence-modules/spring-data-jpa-repo-3/pom.xml

@@ -24,6 +24,7 @@
             <artifactId>h2</artifactId>
             <scope>runtime</scope>
         </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -31,5 +32,4 @@
         </dependency>
     </dependencies>
 
-
 </project>

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/Application.java

@@ -1,6 +1,7 @@
 package com.baeldung.spring.data.jpa.naturalid;
 
 import com.baeldung.spring.data.jpa.naturalid.repository.NaturalIdRepositoryImpl;
+
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/HotelRoomsService.java

@@ -2,8 +2,10 @@ package com.baeldung.spring.data.jpa.naturalid;
 
 import com.baeldung.spring.data.jpa.naturalid.entity.ConferenceRoom;
 import com.baeldung.spring.data.jpa.naturalid.entity.GuestRoom;
+
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.EntityManagerFactory;
+
 import org.hibernate.Session;
 import org.springframework.stereotype.Service;
 

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/NaturalIdRepositoryConfig.java

@@ -1,10 +1,11 @@
 package com.baeldung.spring.data.jpa.naturalid;
 
 import com.baeldung.spring.data.jpa.naturalid.repository.NaturalIdRepositoryImpl;
+
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
 
 @Configuration
 @EnableJpaRepositories(repositoryBaseClass = NaturalIdRepositoryImpl.class)
-public class NaturalIdRepoConfig {
+public class NaturalIdRepositoryConfig {
 }

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/entity/ConferenceRoom.java

@@ -4,6 +4,7 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+
 import org.hibernate.annotations.NaturalId;
 
 @Entity
@@ -12,7 +13,7 @@ public class ConferenceRoom {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-	@NaturalId(mutable = true)
+    @NaturalId
     private String name;
 
     private int capacity;
@@ -29,10 +30,6 @@ public class ConferenceRoom {
         return id;
     }
 
-	public void setId(Long id) {
-		this.id = id;
-	}
-
     public String getName() {
         return name;
     }
@@ -47,10 +44,6 @@ public class ConferenceRoom {
 
     @Override
     public String toString() {
-		return "HotelRoom{" +
+        return "HotelRoom{" + "id=" + id + ", name='" + name + '\'' + ", capacity=" + capacity + '}';
-				"id=" + id +
-				", name='" + name + '\'' +
-				", capacity=" + capacity +
-				'}';
     }
 }

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/entity/GuestRoom.java

@@ -4,6 +4,7 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+
 import org.hibernate.annotations.NaturalId;
 
 @Entity
@@ -21,7 +22,6 @@ public class GuestRoom {
     private String name;
     private int capacity;
 
-
     public GuestRoom(int roomNumber, int floor, String name, int capacity) {
         this.roomNumber = roomNumber;
         this.floor = floor;
@@ -62,12 +62,6 @@ public class GuestRoom {
 
     @Override
     public String toString() {
-		return "GuestRoom{" +
+        return "GuestRoom{" + "id=" + id + ", roomNumber=" + roomNumber + ", floor=" + floor + ", name=" + name + ", capacity=" + capacity + '}';
-				"id=" + id +
-				", roomNumber=" + roomNumber +
-				", floor=" + floor +
-				", name=" + name +
-				", capacity=" + capacity +
-				'}';
     }
 }

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/repository/ConferenceRoomJpaRepo.java

@@ -1,9 +0,0 @@
-package com.baeldung.spring.data.jpa.naturalid.repository;
-
-import com.baeldung.spring.data.jpa.naturalid.entity.ConferenceRoom;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public interface ConferenceRoomJpaRepo extends JpaRepository<ConferenceRoom, Long> {
-}

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/repository/ConferenceRoomRepository.java

@@ -1,6 +1,7 @@
 package com.baeldung.spring.data.jpa.naturalid.repository;
 
 import com.baeldung.spring.data.jpa.naturalid.entity.ConferenceRoom;
+
 import org.springframework.stereotype.Repository;
 
 @Repository

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/repository/GuestRoomJpaRepository.java

@@ -1,9 +1,10 @@
 package com.baeldung.spring.data.jpa.naturalid.repository;
 
 import com.baeldung.spring.data.jpa.naturalid.entity.GuestRoom;
+
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
-public interface GuestRoomJpaRepo extends JpaRepository<GuestRoom, Long> {
+public interface GuestRoomJpaRepository extends JpaRepository<GuestRoom, Long> {
 }

persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/naturalid/repository/NaturalIdRepositoryImpl.java

@@ -1,6 +1,7 @@
 package com.baeldung.spring.data.jpa.naturalid.repository;
 
 import jakarta.persistence.EntityManager;
+
 import org.hibernate.Session;
 import org.springframework.data.jpa.repository.support.JpaEntityInformation;
 import org.springframework.data.jpa.repository.support.SimpleJpaRepository;

persistence-modules/spring-data-jpa-repo-3/src/test/java/com/baeldung/spring/data/jpa/naturalid/NaturalIdIntegrationTest.java

@@ -1,19 +1,17 @@
 package com.baeldung.spring.data.jpa.naturalid;
 
-import com.baeldung.spring.data.jpa.naturalid.entity.ConferenceRoom;
+import static org.assertj.core.api.Assertions.assertThat;
-import com.baeldung.spring.data.jpa.naturalid.entity.GuestRoom;
-import com.baeldung.spring.data.jpa.naturalid.repository.ConferenceRoomJpaRepo;
-import com.baeldung.spring.data.jpa.naturalid.repository.ConferenceRoomRepository;
-import com.baeldung.spring.data.jpa.naturalid.repository.GuestRoomJpaRepo;
-import jakarta.transaction.Transactional;
-import org.junit.jupiter.api.Test;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.annotation.Rollback;
 
 import java.util.Optional;
 
-import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import com.baeldung.spring.data.jpa.naturalid.entity.ConferenceRoom;
+import com.baeldung.spring.data.jpa.naturalid.entity.GuestRoom;
+import com.baeldung.spring.data.jpa.naturalid.repository.ConferenceRoomRepository;
+import com.baeldung.spring.data.jpa.naturalid.repository.GuestRoomJpaRepository;
 
 @SpringBootTest
 class NaturalIdIntegrationTest {
@@ -22,16 +20,13 @@ class NaturalIdIntegrationTest {
     private HotelRoomsService service;
 
     @Autowired
-	private GuestRoomJpaRepo guestRoomJpaRepo;
+    private GuestRoomJpaRepository guestRoomJpaRepository;
-	@Autowired
-	private ConferenceRoomJpaRepo conferenceRoomJpaRepo;
-
     @Autowired
     private ConferenceRoomRepository conferenceRoomRepository;
 
     @Test
     void whenWeFindByNaturalKey_thenEntityIsReturnedCorrectly() {
-		guestRoomJpaRepo.save(new GuestRoom(23, 3, "B-423", 4));
+        guestRoomJpaRepository.save(new GuestRoom(23, 3, "B-423", 4));
 
         Optional<GuestRoom> result = service.guestRoom(23, 3);
 
@@ -41,7 +36,7 @@ class NaturalIdIntegrationTest {
 
     @Test
     void whenWeFindBySimpleNaturalKey_thenEntityIsReturnedCorrectly() {
-		conferenceRoomJpaRepo.save(new ConferenceRoom("Colorado", 100));
+        conferenceRoomRepository.save(new ConferenceRoom("Colorado", 100));
 
         Optional<ConferenceRoom> result = service.conferenceRoom("Colorado");
 
@@ -50,8 +45,8 @@ class NaturalIdIntegrationTest {
     }
 
     @Test
-	void givenNaturalIdRepo_whenWeFindBySimpleNaturalKey_thenEntityIsReturnedCorrectly() {
+    void givenNaturalIdRepository_whenWeFindBySimpleNaturalKey_thenEntityIsReturnedCorrectly() {
-		conferenceRoomJpaRepo.save(new ConferenceRoom("Nevada", 200));
+        conferenceRoomRepository.save(new ConferenceRoom("Nevada", 200));
 
         Optional<ConferenceRoom> result = conferenceRoomRepository.naturalId("Nevada");