Merge pull request #10103 from sampada07/JAVA-2432

JAVA-2432: Move articles out of spring-hibernate4

persistence-modules/hibernate-enterprise/README.md

@@ -9,4 +9,5 @@ This module contains articles about enterprise concerns such as Multitenancy, Er
 - [Hibernate Aggregate Functions](https://www.baeldung.com/hibernate-aggregate-functions)
 - [Common Hibernate Exceptions](https://www.baeldung.com/hibernate-exceptions)
 - [Hibernate Error “Not all named parameters have been set”](https://www.baeldung.com/hibernate-error-named-parameters-not-set)
-- [Various Logging Levels in Hibernate](https://www.baeldung.com/hibernate-logging-levels)
+- [Various Logging Levels in Hibernate](https://www.baeldung.com/hibernate-logging-levels)
+- [Hibernate: save, persist, update, merge, saveOrUpdate](https://www.baeldung.com/hibernate-save-persist-update-merge-saveorupdate)

persistence-modules/hibernate-enterprise/pom.xml

@@ -61,13 +61,25 @@
             <version>${byte-buddy.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
+            <version>${hsqldb.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <repositories>
         <repository>
-            <id>geodb-repo</id>
-            <name>GeoDB repository</name>
-            <url>http://repo.boundlessgeo.com/main/</url>
+            <id>osgeo</id>
+            <name>OSGeo Release Repository</name>
+            <url>https://repo.osgeo.org/repository/release/</url>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
         </repository>
     </repositories>
 
@@ -77,6 +89,7 @@
         <mariaDB4j.version>2.2.3</mariaDB4j.version>
         <assertj-core.version>3.8.0</assertj-core.version>
         <geodb.version>0.9</geodb.version>
+        <hsqldb.version>2.3.4</hsqldb.version>
     </properties>
 
 </project>

persistence-modules/hibernate-enterprise/src/test/java/com/baeldung/persistence/save/SaveMethodsIntegrationTest.java

@@ -1,6 +1,14 @@
 package com.baeldung.persistence.save;
 
-import com.baeldung.persistence.model.Person;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNotSame;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+
+import javax.persistence.PersistenceException;
+
 import org.hibernate.HibernateException;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
@@ -8,9 +16,13 @@ import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
 import org.hibernate.cfg.Configuration;
 import org.hibernate.dialect.HSQLDialect;
 import org.hibernate.service.ServiceRegistry;
-import org.junit.*;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
-import static org.junit.Assert.*;
+import com.baeldung.persistence.model.Person;
 
 /**
  * Testing specific implementation details for different methods:
@@ -21,12 +33,19 @@ public class SaveMethodsIntegrationTest {
     private static SessionFactory sessionFactory;
 
     private Session session;
+    private boolean doNotCommit = false;
 
     @BeforeClass
     public static void beforeTests() {
-        Configuration configuration = new Configuration().addAnnotatedClass(Person.class).setProperty("hibernate.dialect", HSQLDialect.class.getName()).setProperty("hibernate.connection.driver_class", org.hsqldb.jdbcDriver.class.getName())
-                .setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:test").setProperty("hibernate.connection.username", "sa").setProperty("hibernate.connection.password", "").setProperty("hibernate.hbm2ddl.auto", "update");
-        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
+        Configuration configuration = new Configuration().addAnnotatedClass(Person.class)
+            .setProperty("hibernate.dialect", HSQLDialect.class.getName())
+            .setProperty("hibernate.connection.driver_class", org.hsqldb.jdbcDriver.class.getName())
+            .setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:test")
+            .setProperty("hibernate.connection.username", "sa")
+            .setProperty("hibernate.connection.password", "")
+            .setProperty("hibernate.hbm2ddl.auto", "update");
+        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties())
+            .build();
         sessionFactory = configuration.buildSessionFactory(serviceRegistry);
     }
 
@@ -34,6 +53,7 @@ public class SaveMethodsIntegrationTest {
     public void setUp() {
         session = sessionFactory.openSession();
         session.beginTransaction();
+        doNotCommit = false;
     }
 
     @Test
@@ -43,7 +63,8 @@ public class SaveMethodsIntegrationTest {
         person.setName("John");
         session.persist(person);
 
-        session.getTransaction().commit();
+        session.getTransaction()
+            .commit();
         session.close();
 
         session = sessionFactory.openSession();
@@ -68,15 +89,33 @@ public class SaveMethodsIntegrationTest {
         assertEquals(id1, id2);
     }
 
-    @Test(expected = HibernateException.class)
+    @Test(expected = PersistenceException.class)
     public void whenPersistDetached_thenThrowsException() {
 
+        doNotCommit = true;
+        
         Person person = new Person();
         person.setName("John");
         session.persist(person);
         session.evict(person);
-
+        
         session.persist(person);
+    }
+
+    @Test
+    public void whenMergeDetached_thenEntityUpdatedFromDatabase() {
+
+        Person person = new Person();
+        person.setName("John");
+        session.save(person);
+        session.flush();
+        session.evict(person);
+
+        person.setName("Mary");
+        Person mergedPerson = (Person) session.merge(person);
+
+        assertNotSame(person, mergedPerson);
+        assertEquals("Mary", mergedPerson.getName());
 
     }
 
@@ -92,7 +131,8 @@ public class SaveMethodsIntegrationTest {
 
         assertNotNull(id);
 
-        session.getTransaction().commit();
+        session.getTransaction()
+            .commit();
         session.close();
 
         assertEquals(id, person.getId());
@@ -128,22 +168,6 @@ public class SaveMethodsIntegrationTest {
 
     }
 
-    @Test
-    public void whenMergeDetached_thenEntityUpdatedFromDatabase() {
-
-        Person person = new Person();
-        person.setName("John");
-        session.save(person);
-        session.evict(person);
-
-        person.setName("Mary");
-        Person mergedPerson = (Person) session.merge(person);
-
-        assertNotSame(person, mergedPerson);
-        assertEquals("Mary", mergedPerson.getName());
-
-    }
-
     @Test
     public void whenMergeTransient_thenNewEntitySavedToDatabase() {
 
@@ -151,7 +175,8 @@ public class SaveMethodsIntegrationTest {
         person.setName("John");
         Person mergedPerson = (Person) session.merge(person);
 
-        session.getTransaction().commit();
+        session.getTransaction()
+            .commit();
         session.beginTransaction();
 
         assertNull(person.getId());
@@ -227,7 +252,8 @@ public class SaveMethodsIntegrationTest {
         person.setName("John");
         session.saveOrUpdate(person);
 
-        session.getTransaction().commit();
+        session.getTransaction()
+            .commit();
         session.close();
 
         session = sessionFactory.openSession();
@@ -250,7 +276,10 @@ public class SaveMethodsIntegrationTest {
 
     @After
     public void tearDown() {
-        session.getTransaction().commit();
+        if (!doNotCommit) {
+            session.getTransaction()
+                .commit();
+        }
         session.close();
     }
 

persistence-modules/pom.xml

@@ -81,8 +81,7 @@
         <module>spring-data-redis</module>
         <module>spring-data-solr</module>
         <module>spring-hibernate-3</module>
-        <module>spring-hibernate-5</module> <!-- long running -->
-        <module>spring-hibernate4</module>
+        <module>spring-hibernate-5</module> <!-- long running -->        
         <module>spring-jpa</module>
         <module>spring-jpa-2</module>
         <module>spring-jdbc</module>

persistence-modules/spring-data-jpa-query-2/README.md

@@ -6,6 +6,12 @@ This module contains articles about querying data using Spring Data JPA
 - [Spring Data JPA @Query Annotation](https://www.baeldung.com/spring-data-jpa-query)
 - [Use Criteria Queries in a Spring Data Application](https://www.baeldung.com/spring-data-criteria-queries)
 - [Query Entities by Dates and Times with Spring Data JPA](https://www.baeldung.com/spring-data-jpa-query-by-date)
+- [Hibernate Pagination](https://www.baeldung.com/hibernate-pagination)
+- [Sorting with Hibernate](https://www.baeldung.com/hibernate-sort)
+- [Stored Procedures with Hibernate](https://www.baeldung.com/stored-procedures-with-hibernate-tutorial)
+- [Eager/Lazy Loading In Hibernate](https://www.baeldung.com/hibernate-lazy-eager-loading)
+- [Auditing with JPA, Hibernate, and Spring Data JPA](https://www.baeldung.com/database-auditing-jpa)
+
 - More articles: [[<-- prev]](../spring-data-jpa-query)
 
 ### Eclipse Config 

persistence-modules/spring-data-jpa-query-2/pom.xml

@@ -18,6 +18,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-core</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>com.h2database</groupId>
@@ -28,6 +32,55 @@
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
         </dependency>
+        
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-envers</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.transaction</groupId>
+            <artifactId>jta</artifactId>
+            <version>${jta.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.tomcat</groupId>
+            <artifactId>tomcat-dbcp</artifactId>
+            <version>${tomcat-dbcp.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-core</artifactId>
+            <version>${hibernate.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-envers</artifactId>
+            <version>${hibernate.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>
@@ -35,5 +88,10 @@
         <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
         <junit-jupiter.version>5.6.2</junit-jupiter.version>
         <junit.version>4.13</junit.version>
+        <tomcat-dbcp.version>9.0.0.M26</tomcat-dbcp.version>
+        <jta.version>1.1</jta.version>
+        <guava.version>21.0</guava.version>
+        <!-- persistence -->
+        <hibernate.version>5.2.10.Final</hibernate.version>
     </properties>
 </project>

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/config/PersistenceConfig.java

@@ -1,4 +1,4 @@
-package com.baeldung.spring;
+package com.baeldung.config;
 
 import java.util.Properties;
 
@@ -15,8 +15,8 @@ import org.springframework.dao.annotation.PersistenceExceptionTranslationPostPro
 import org.springframework.data.domain.AuditorAware;
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
-import org.springframework.orm.hibernate4.HibernateTransactionManager;
-import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
+import org.springframework.orm.hibernate5.HibernateTransactionManager;
+import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
 import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.orm.jpa.JpaVendorAdapter;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
@@ -47,7 +47,7 @@ import com.google.common.base.Preconditions;
 
 @Configuration
 @EnableTransactionManagement
-@EnableJpaRepositories(basePackages = { "com.baeldung.persistence" }, transactionManagerRef = "jpaTransactionManager")
+@EnableJpaRepositories(basePackages = { "com.baeldung.persistence" }, transactionManagerRef = "jpaTransactionManager", entityManagerFactoryRef = "jpaEntityManager")
 @EnableJpaAuditing(auditorAwareRef = "auditorProvider")
 @PropertySource({ "classpath:persistence-h2.properties" })
 @ComponentScan({ "com.baeldung.persistence" })
@@ -75,7 +75,7 @@ public class PersistenceConfig {
         return sessionFactory;
     }
 
-    @Bean
+    @Bean("jpaEntityManager")
     public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
         final LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
         emf.setDataSource(restDataSource());

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/config/PersistenceXmlConfig.java

@@ -1,4 +1,4 @@
-package com.baeldung.spring;
+package com.baeldung.config;
 
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/hibernate/audit/AuditorAwareImpl.java

@@ -9,11 +9,10 @@ import org.springframework.security.core.context.SecurityContextHolder;
 public class AuditorAwareImpl implements AuditorAware<String> {
 
     @Override
-    public String getCurrentAuditor() {
+    public Optional<String> getCurrentAuditor() {
         return Optional.ofNullable(SecurityContextHolder.getContext())
             .map(e -> e.getAuthentication())
-            .map(Authentication::getName)
-            .orElse(null);
+            .map(Authentication::getName);
     }
 
 }

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/persistence/dao/BookRepository.java

@@ -1,9 +0,0 @@
-package com.baeldung.persistence.dao;
-
-import com.baeldung.persistence.model.Book;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
-
-public interface BookRepository extends JpaRepository<Book, Long>, BookRepositoryCustom, JpaSpecificationExecutor<Book> {
-
-}

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/persistence/dao/BookRepositoryCustom.java

@@ -1,11 +0,0 @@
-package com.baeldung.persistence.dao;
-
-import com.baeldung.persistence.model.Book;
-
-import java.util.List;
-
-public interface BookRepositoryCustom {
-
-    List<Book> findBooksByAuthorNameAndTitle(String authorName, String title);
-    
-}

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/persistence/dao/BookRepositoryImpl.java

@@ -1,44 +0,0 @@
-package com.baeldung.persistence.dao;
-
-import com.baeldung.persistence.model.Book;
-import org.springframework.stereotype.Repository;
-
-import javax.persistence.EntityManager;
-import javax.persistence.TypedQuery;
-import javax.persistence.criteria.CriteriaBuilder;
-import javax.persistence.criteria.CriteriaQuery;
-import javax.persistence.criteria.Predicate;
-import javax.persistence.criteria.Root;
-import java.util.ArrayList;
-import java.util.List;
-
-@Repository
-public class BookRepositoryImpl implements BookRepositoryCustom {
-
-    private EntityManager em;
-
-    public BookRepositoryImpl(EntityManager em) {
-        this.em = em;
-    }
-
-    @Override
-    public List<Book> findBooksByAuthorNameAndTitle(String authorName, String title) {
-        CriteriaBuilder cb = em.getCriteriaBuilder();
-        CriteriaQuery<Book> cq = cb.createQuery(Book.class);
-
-        Root<Book> book = cq.from(Book.class);
-        List<Predicate> predicates = new ArrayList<>();
-
-        if (authorName != null) {
-            predicates.add(cb.equal(book.get("author"), authorName));
-        }
-        if (title != null) {
-            predicates.add(cb.like(book.get("title"), "%" + title + "%"));
-        }
-        cq.where(predicates.toArray(new Predicate[0]));
-
-        TypedQuery<Book> query = em.createQuery(cq);
-        return query.getResultList();
-    }
-
-}

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/persistence/dao/BookService.java

@@ -1,25 +0,0 @@
-package com.baeldung.persistence.dao;
-
-import com.baeldung.persistence.model.Book;
-import org.springframework.stereotype.Service;
-
-import java.util.List;
-
-import static com.baeldung.persistence.dao.BookSpecifications.hasAuthor;
-import static com.baeldung.persistence.dao.BookSpecifications.titleContains;
-import static org.springframework.data.jpa.domain.Specification.where;
-
-@Service
-public class BookService {
-
-    private BookRepository bookRepository;
-
-    public BookService(BookRepository bookRepository) {
-        this.bookRepository = bookRepository;
-    }
-
-    public List<Book> query(String author, String title) {
-        return bookRepository.findAll(where(hasAuthor(author)).and(titleContains(title)));
-    }
-
-}

persistence-modules/spring-data-jpa-query-2/src/main/java/com/baeldung/persistence/dao/BookSpecifications.java

@@ -1,16 +0,0 @@
-package com.baeldung.persistence.dao;
-
-import com.baeldung.persistence.model.Book;
-import org.springframework.data.jpa.domain.Specification;
-
-public class BookSpecifications {
-
-    public static Specification<Book> hasAuthor(String author) {
-        return (book, cq, cb) -> cb.equal(book.get("author"), author);
-    }
-
-    public static Specification<Book> titleContains(String title) {
-        return (book, cq, cb) -> cb.like(book.get("title"), "%" + title + "%");
-    }
-
-}