BAEL-2799 (#6904)

* BAEL-2799

* constructor name fix

* method name fix

* add database

* fix tests

persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/defaultvalues/User.java

@@ -1,4 +1,4 @@
-package com.baeldung.jpadefaultvalues.application;
+package com.baeldung.jpa.defaultvalues;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
@@ -9,7 +9,6 @@ import javax.persistence.Id;
 public class User {
 
     @Id
-    @GeneratedValue
     private Long id;
 
     @Column(columnDefinition = "varchar(255) default 'John Snow'")

persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/defaultvalues/UserRepository.java

@@ -0,0 +1,36 @@
+package com.baeldung.jpa.defaultvalues;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+
+public class UserRepository {
+
+    private EntityManagerFactory emf = null;
+
+    public UserRepository() {
+        emf = Persistence.createEntityManagerFactory("entity-default-values");
+    }
+
+    public User find(Long id) {
+        EntityManager entityManager = emf.createEntityManager();
+        User user = entityManager.find(User.class, id);
+        entityManager.close();
+        return user;
+    }
+
+    public void save(User user, Long id) {
+        user.setId(id);
+
+        EntityManager entityManager = emf.createEntityManager();
+        entityManager.getTransaction().begin();
+        entityManager.persist(user);
+        entityManager.getTransaction().commit();
+        entityManager.close();
+    }
+
+    public void clean() {
+        emf.close();
+    }
+
+}

persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml

@@ -130,4 +130,20 @@
         </properties>
     </persistence-unit>
 
+    <persistence-unit name="entity-default-values">
+        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
+        <class>com.baeldung.jpa.defaultvalues.User</class>
+        <exclude-unlisted-classes>true</exclude-unlisted-classes>
+        <properties>
+            <property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
+            <property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:test" />
+            <property name="javax.persistence.jdbc.user" value="sa" />
+            <property name="javax.persistence.jdbc.password" value="" />
+            <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
+            <property name="hibernate.hbm2ddl.auto" value="create-drop" />
+            <property name="show_sql" value="true" />
+            <property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
+        </properties>
+    </persistence-unit>
+
 </persistence>

persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/defautlvalues/UserDefaultValuesUnitTest.java

@@ -1,31 +1,31 @@
-package com.baeldung.jpadefaultvalues.application;
+package com.baeldung.jpa.defaultvalues;
 
-import com.baeldung.jpadefaultvalues.application.User;
+import com.baeldung.jpa.defaultvalues.User;
-import com.baeldung.jpadefaultvalues.application.UserRepository;
+import com.baeldung.jpa.defaultvalues.UserRepository;
 
 import org.junit.Test;
 import org.junit.Ignore;
-import org.junit.runner.RunWith;
+import org.junit.AfterClass;
-
+import org.junit.BeforeClass;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
-import org.springframework.beans.factory.annotation.Autowired;
 
 import static org.junit.Assert.*;
 
-@RunWith(SpringRunner.class)
-@SpringBootTest
 public class UserDefaultValuesUnitTest {
 
-    @Autowired
+    private static UserRepository userRepository = null;
-    private UserRepository userRepository;
+
+    @BeforeClass
+    public static void once() {
+        userRepository = new UserRepository();
+    }
 
     @Test
     @Ignore // SQL default values are also defined
     public void saveUser_shouldSaveWithDefaultFieldValues() {
         User user = new User();
-        user = userRepository.save(user);
+        userRepository.save(user, 1L);
 
+        user = userRepository.find(1L);
         assertEquals(user.getName(), "John Snow");
         assertEquals(25, (int) user.getAge());
         assertFalse(user.getLocked());
@@ -36,8 +36,9 @@ public class UserDefaultValuesUnitTest {
     public void saveUser_shouldSaveWithNullName() {
         User user = new User();
         user.setName(null);
-        user = userRepository.save(user);
+        userRepository.save(user, 2L);
 
+        user = userRepository.find(2L);
         assertNull(user.getName());
         assertEquals(25, (int) user.getAge());
         assertFalse(user.getLocked());
@@ -46,11 +47,17 @@ public class UserDefaultValuesUnitTest {
     @Test
     public void saveUser_shouldSaveWithDefaultSqlValues() {
         User user = new User();
-        user = userRepository.save(user);
+        userRepository.save(user, 3L);
 
+        user = userRepository.find(3L);
         assertEquals(user.getName(), "John Snow");
         assertEquals(25, (int) user.getAge());
         assertFalse(user.getLocked());
     }
 
+    @AfterClass
+    public static void destroy() {
+        userRepository.clean();
+    }
+
 }

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/jpadefaultvalues/application/Application.java

@@ -1,14 +0,0 @@
-package com.baeldung.jpadefaultvalues.application;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ApplicationContext;
-
-@SpringBootApplication
-public class Application {
-    private static ApplicationContext applicationContext;
-
-    public static void main(String[] args) {
-        applicationContext = SpringApplication.run(Application.class, args);
-    }
-}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/jpadefaultvalues/application/UserRepository.java

@@ -1,8 +0,0 @@
-package com.baeldung.jpadefaultvalues.application;
-
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public interface UserRepository extends JpaRepository<User, Long> {
-}