Merge pull request #9956 from dupirefr/team/JAVA-2306-split-spring_persistence_modules

Team/java 2306 split spring persistence modules

.gitignore

@@ -88,3 +88,6 @@ apache-cxf/cxf-aegis/baeldung.xml
 testing-modules/report-*.json
 
 libraries-2/*.db
+
+# SDKMan
+.sdkmanrc

persistence-modules/core-java-persistence/src/main/java/com/baeldung/spring/jdbc/BatchProcessing.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc;
 
 import java.sql.*;
 import java.util.UUID;

persistence-modules/core-java-persistence/src/main/java/com/baeldung/spring/jdbc/Employee.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc;
 
 import java.util.Objects;
 

persistence-modules/core-java-persistence/src/main/java/com/baeldung/spring/jdbc/joins/ArticleWithAuthor.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.joins;
+package com.baeldung.spring.jdbc.joins;
 
 class ArticleWithAuthor {
 

persistence-modules/core-java-persistence/src/main/java/com/baeldung/spring/jdbc/joins/ArticleWithAuthorDAO.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.joins;
+package com.baeldung.spring.jdbc.joins;
 
 import java.sql.Connection;
 import java.sql.ResultSet;

persistence-modules/core-java-persistence/src/test/java/com/baeldung/spring/jdbc/BatchProcessingLiveTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc;
 
 
 import org.junit.Before;

persistence-modules/core-java-persistence/src/test/java/com/baeldung/spring/jdbc/JdbcDriverLoadingUnitTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc;
 
 import static org.junit.Assert.*;
 

persistence-modules/core-java-persistence/src/test/java/com/baeldung/spring/jdbc/JdbcLiveTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc;
 
 import org.apache.log4j.Logger;
 import org.junit.After;

persistence-modules/core-java-persistence/src/test/java/com/baeldung/spring/jdbc/ResultSetLiveTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc;
 
 import static org.junit.Assert.assertEquals;
 

persistence-modules/core-java-persistence/src/test/java/com/baeldung/spring/jdbc/joins/ArticleWithAuthorDAOLiveTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.joins;
+package com.baeldung.spring.jdbc.joins;
 
 import org.junit.After;
 import org.junit.Before;

persistence-modules/pom.xml

@@ -68,7 +68,9 @@
         <module>spring-data-jpa-enterprise</module>
         <module>spring-data-jpa-filtering</module>
         <module>spring-data-jpa-query</module>
+        <module>spring-data-jpa-query-2</module>
         <module>spring-data-jpa-repo</module>
+        <module>spring-data-jpa-repo-2</module>
 
         <module>spring-data-jdbc</module>
 
@@ -82,9 +84,9 @@
         <module>spring-hibernate4</module>
         <module>spring-jpa</module>
         <module>spring-jpa-2</module>
+        <module>spring-jdbc</module>
         <!-- <module>spring-mybatis</module> --> <!-- needs fixing in BAEL-9021 -->
         <module>spring-persistence-simple</module>
-        <module>spring-persistence-simple-2</module>
     </modules>
 
     <properties>

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

@@ -4,6 +4,7 @@ This module contains articles about querying data using Spring Data JPA
 
 ### Relevant Articles: 
 - [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)
 - More articles: [[<-- prev]](../spring-data-jpa-query)
 
 ### Eclipse Config 

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

@@ -3,7 +3,7 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <artifactId>spring-data-jpa-query</artifactId>
+    <artifactId>spring-data-jpa-query-2</artifactId>
     <name>spring-data-jpa-query-2</name>
 
     <parent>

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

@@ -1,4 +1,4 @@
-package com.baeldung.spring.data.persistence.model;
+package com.baeldung.spring.data.jpa.query;
 
 import javax.persistence.*;
 import java.time.LocalDate;
@@ -8,7 +8,6 @@ import java.util.Objects;
 @Entity
 @Table(name = "users")
 public class User {
-
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private int id;
@@ -28,9 +27,6 @@ public class User {
 
     private Integer status;
 
-    @OneToMany
-    List<Possession> possessionList;
-
     public User() {
         super();
     }
@@ -87,12 +83,20 @@ public class User {
         return creationDate;
     }
 
-    public List<Possession> getPossessionList() {
-        return possessionList;
+    public LocalDate getLastLoginDate() {
+        return lastLoginDate;
     }
 
-    public void setPossessionList(List<Possession> possessionList) {
-        this.possessionList = possessionList;
+    public void setLastLoginDate(LocalDate lastLoginDate) {
+        this.lastLoginDate = lastLoginDate;
+    }
+
+    public boolean isActive() {
+        return active;
+    }
+
+    public void setActive(boolean active) {
+        this.active = active;
     }
 
     @Override
@@ -119,21 +123,4 @@ public class User {
     public int hashCode() {
         return Objects.hash(id, name, creationDate, age, email, status);
     }
-
-    public LocalDate getLastLoginDate() {
-        return lastLoginDate;
-    }
-
-    public void setLastLoginDate(LocalDate lastLoginDate) {
-        this.lastLoginDate = lastLoginDate;
-    }
-
-    public boolean isActive() {
-        return active;
-    }
-
-    public void setActive(boolean active) {
-        this.active = active;
-    }
-
 }

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

@@ -1,6 +1,5 @@
-package com.baeldung.spring.data.persistence.repository;
+package com.baeldung.spring.data.jpa.query;
 
-import com.baeldung.spring.data.persistence.model.User;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
@@ -9,51 +8,16 @@ import org.springframework.data.jpa.repository.Modifying;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 
-import java.time.LocalDate;
 import java.util.Collection;
 import java.util.List;
-import java.util.stream.Stream;
 
 public interface UserRepository extends JpaRepository<User, Integer>, UserRepositoryCustom {
-
-    Stream<User> findAllByName(String name);
-
     @Query("SELECT u FROM User u WHERE u.status = 1")
     Collection<User> findAllActiveUsers();
 
-    @Query("select u from User u where u.email like '%@gmail.com'")
-    List<User> findUsersWithGmailAddress();
-
     @Query(value = "SELECT * FROM Users u WHERE u.status = 1", nativeQuery = true)
     Collection<User> findAllActiveUsersNative();
 
-    @Query("SELECT u FROM User u WHERE u.status = ?1")
-    User findUserByStatus(Integer status);
-
-    @Query(value = "SELECT * FROM Users u WHERE u.status = ?1", nativeQuery = true)
-    User findUserByStatusNative(Integer status);
-
-    @Query("SELECT u FROM User u WHERE u.status = ?1 and u.name = ?2")
-    User findUserByStatusAndName(Integer status, String name);
-
-    @Query("SELECT u FROM User u WHERE u.status = :status and u.name = :name")
-    User findUserByStatusAndNameNamedParams(@Param("status") Integer status, @Param("name") String name);
-
-    @Query(value = "SELECT * FROM Users u WHERE u.status = :status AND u.name = :name", nativeQuery = true)
-    User findUserByStatusAndNameNamedParamsNative(@Param("status") Integer status, @Param("name") String name);
-
-    @Query("SELECT u FROM User u WHERE u.status = :status and u.name = :name")
-    User findUserByUserStatusAndUserName(@Param("status") Integer userStatus, @Param("name") String userName);
-
-    @Query("SELECT u FROM User u WHERE u.name like ?1%")
-    User findUserByNameLike(String name);
-
-    @Query("SELECT u FROM User u WHERE u.name like :name%")
-    User findUserByNameLikeNamedParam(@Param("name") String name);
-
-    @Query(value = "SELECT * FROM users u WHERE u.name LIKE ?1%", nativeQuery = true)
-    User findUserByNameLikeNative(String name);
-
     @Query(value = "SELECT u FROM User u")
     List<User> findAllUsers(Sort sort);
 
@@ -63,6 +27,27 @@ public interface UserRepository extends JpaRepository<User, Integer>, UserReposi
     @Query(value = "SELECT * FROM Users ORDER BY id", countQuery = "SELECT count(*) FROM Users", nativeQuery = true)
     Page<User> findAllUsersWithPaginationNative(Pageable pageable);
 
+    @Query("SELECT u FROM User u WHERE u.status = ?1")
+    User findUserByStatus(Integer status);
+
+    @Query("SELECT u FROM User u WHERE u.status = ?1 and u.name = ?2")
+    User findUserByStatusAndName(Integer status, String name);
+
+    @Query(value = "SELECT * FROM Users u WHERE u.status = ?1", nativeQuery = true)
+    User findUserByStatusNative(Integer status);
+
+    @Query("SELECT u FROM User u WHERE u.status = :status and u.name = :name")
+    User findUserByStatusAndNameNamedParams(@Param("status") Integer status, @Param("name") String name);
+
+    @Query("SELECT u FROM User u WHERE u.status = :status and u.name = :name")
+    User findUserByUserStatusAndUserName(@Param("status") Integer userStatus, @Param("name") String userName);
+
+    @Query(value = "SELECT * FROM Users u WHERE u.status = :status AND u.name = :name", nativeQuery = true)
+    User findUserByStatusAndNameNamedParamsNative(@Param("status") Integer status, @Param("name") String name);
+
+    @Query(value = "SELECT u FROM User u WHERE u.name IN :names")
+    List<User> findUserByNameList(@Param("names") Collection<String> names);
+
     @Modifying
     @Query("update User u set u.status = :status where u.name = :name")
     int updateUserSetStatusForName(@Param("status") Integer status, @Param("name") String name);
@@ -74,25 +59,4 @@ public interface UserRepository extends JpaRepository<User, Integer>, UserReposi
     @Query(value = "INSERT INTO Users (name, age, email, status, active) VALUES (:name, :age, :email, :status, :active)", nativeQuery = true)
     @Modifying
     void insertUser(@Param("name") String name, @Param("age") Integer age, @Param("email") String email, @Param("status") Integer status, @Param("active") boolean active);
-
-    @Modifying
-    @Query(value = "UPDATE Users u SET status = ? WHERE u.name = ?", nativeQuery = true)
-    int updateUserSetStatusForNameNativePostgres(Integer status, String name);
-
-    @Query(value = "SELECT u FROM User u WHERE u.name IN :names")
-    List<User> findUserByNameList(@Param("names") Collection<String> names);
-
-    void deleteAllByCreationDateAfter(LocalDate date);
-
-    @Modifying(clearAutomatically = true, flushAutomatically = true)
-    @Query("update User u set u.active = false where u.lastLoginDate < :date")
-    void deactivateUsersNotLoggedInSince(@Param("date") LocalDate date);
-
-    @Modifying(clearAutomatically = true, flushAutomatically = true)
-    @Query("delete User u where u.active = false")
-    int deleteDeactivatedUsers();
-
-    @Modifying(clearAutomatically = true, flushAutomatically = true)
-    @Query(value = "alter table USERS add column deleted int(1) not null default 0", nativeQuery = true)
-    void addDeletedColumn();
 }

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

@@ -1,6 +1,4 @@
-package com.baeldung.spring.data.persistence.repository;
-
-import com.baeldung.spring.data.persistence.model.User;
+package com.baeldung.spring.data.jpa.query;
 
 import java.util.Collection;
 import java.util.List;

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

@@ -3,7 +3,6 @@
 This module contains articles about querying data using Spring Data JPA 
 
 ### Relevant Articles: 
-- [Query Entities by Dates and Times with Spring Data JPA](https://www.baeldung.com/spring-data-jpa-query-by-date)
 - [The Exists Query in Spring Data](https://www.baeldung.com/spring-data-exists-query)
 - [Customizing the Result of JPA Queries with Aggregation Functions](https://www.baeldung.com/jpa-queries-custom-result-with-aggregation-functions)
 - [Limiting Query Results with JPA and Spring Data JPA](https://www.baeldung.com/jpa-limit-query-results)

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

@@ -0,0 +1,5 @@
+## Spring Data JPA - Repositories
+
+### Relevant Articles: 
+- [Introduction to Spring Data JPA](https://www.baeldung.com/the-persistence-layer-with-spring-data-jpa)
+- More articles: [[<-- prev]](/spring-data-jpa-repo/)

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

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-2</relativePath>
+    </parent>
+
+    <artifactId>spring-data-jpa-repo-2</artifactId>
+    <name>spring-data-jpa-repo-2</name>
+
+    <dependencies>
+        <!-- Persistence -->
+        <dependency>
+            <groupId>javax.persistence</groupId>
+            <artifactId>javax.persistence-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+
+        <!-- Utilities -->
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <guava.version>29.0-jre</guava.version>
+    </properties>
+</project>

persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/repository/Foo.java

@@ -1,16 +1,10 @@
-package com.baeldung.spring.data.persistence.model;
+package com.baeldung.spring.data.persistence.repository;
 
+import javax.persistence.*;
 import java.io.Serializable;
 
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-
 @Entity
 public class Foo implements Serializable {
-
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
     private long id;
@@ -28,8 +22,6 @@ public class Foo implements Serializable {
         this.name = name;
     }
 
-    // API
-
     public long getId() {
         return id;
     }
@@ -46,8 +38,6 @@ public class Foo implements Serializable {
         this.name = name;
     }
 
-    //
-
     @Override
     public int hashCode() {
         final int prime = 31;
@@ -79,5 +69,4 @@ public class Foo implements Serializable {
         builder.append("Foo [name=").append(name).append("]");
         return builder.toString();
     }
-
 }

persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/repository/FooService.java

@@ -0,0 +1,15 @@
+package com.baeldung.spring.data.persistence.repository;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class FooService implements IFooService {
+    @Autowired
+    private IFooDAO dao;
+
+    @Override
+    public Foo create(Foo foo) {
+        return dao.save(foo);
+    }
+}

persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/repository/IFooDAO.java

@@ -1,13 +1,13 @@
 package com.baeldung.spring.data.persistence.repository;
 
-import com.baeldung.spring.data.persistence.model.Foo;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 
-public interface IFooDao extends JpaRepository<Foo, Long> {
+public interface IFooDAO extends JpaRepository<Foo, Long> {
+
+    Foo findByName(String name);
 
     @Query("SELECT f FROM Foo f WHERE LOWER(f.name) = LOWER(:name)")
     Foo retrieveByName(@Param("name") String name);
-
 }

persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/repository/IFooService.java

@@ -0,0 +1,5 @@
+package com.baeldung.spring.data.persistence.repository;
+
+public interface IFooService {
+    Foo create(Foo foo);
+}

persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/repository/PersistenceConfig.java

@@ -1,4 +1,4 @@
-package com.baeldung.spring.data.persistence.config;
+package com.baeldung.spring.data.persistence.repository;
 
 import com.google.common.base.Preconditions;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -20,11 +20,11 @@ import javax.sql.DataSource;
 import java.util.Properties;
 
 @Configuration
+@PropertySource("classpath:persistence.properties")
+@ComponentScan("com.baeldung.spring.data.persistence.repository")
+//@ImportResource("classpath*:*springDataConfig.xml")
 @EnableTransactionManagement
-@PropertySource({ "classpath:persistence-${envTarget:h2}.properties" })
-@ComponentScan({ "com.baeldung.spring.data.persistence" })
-//@ImportResource("classpath*:*springDataJpaRepositoriesConfig.xml")
-@EnableJpaRepositories("com.baeldung.spring.data.persistence.repository")
+@EnableJpaRepositories(basePackages = "com.baeldung.spring.data.persistence.repository")
 public class PersistenceConfig {
 
     @Autowired
@@ -38,7 +38,7 @@ public class PersistenceConfig {
     public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
         final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
         em.setDataSource(dataSource());
-        em.setPackagesToScan("com.baeldung.spring.data.persistence.model");
+        em.setPackagesToScan("com.baeldung.spring.data.persistence.repository");
 
         final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
         em.setJpaVendorAdapter(vendorAdapter);
@@ -78,5 +78,4 @@ public class PersistenceConfig {
 
         return hibernateProperties;
     }
-
 }

persistence-modules/spring-data-jpa-repo-2/src/main/resources/application.properties

@@ -0,0 +1,3 @@
+spring.datasource.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
+spring.datasource.username=sa
+spring.datasource.password=sa

persistence-modules/spring-data-jpa-repo-2/src/main/resources/persistence.properties

@@ -0,0 +1,9 @@
+# jdbc.X
+jdbc.driverClassName=org.h2.Driver
+jdbc.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
+jdbc.user=sa
+jdbc.pass=
+
+# hibernate.X
+hibernate.hbm2ddl.auto=create-drop
+hibernate.dialect=org.hibernate.dialect.H2Dialect

persistence-modules/spring-data-jpa-repo-2/src/main/resources/springDataConfig.xml

@@ -7,7 +7,5 @@
     http://www.springframework.org/schema/data/jpa
     http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"
 >
-
     <jpa:repositories base-package="com.baeldung.spring.data.persistence.repository"/>
-
 </beans>

persistence-modules/spring-data-jpa-repo-2/src/test/java/com/baeldung/spring/data/persistence/repository/FooServiceIntegrationTest.java

@@ -0,0 +1,21 @@
+package com.baeldung.spring.data.persistence.repository;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@ContextConfiguration(classes = PersistenceConfig.class)
+public class FooServiceIntegrationTest {
+
+    @Autowired
+    private IFooService service;
+
+    @Test(expected = DataIntegrityViolationException.class)
+    public final void whenInvalidEntityIsCreated_thenDataException() {
+        service.create(new Foo());
+    }
+}

persistence-modules/spring-data-jpa-repo/README.md

@@ -11,6 +11,7 @@ This module contains articles about repositories in Spring Data JPA
 - [Spring Data Composable Repositories](https://www.baeldung.com/spring-data-composable-repositories)
 - [Spring Data JPA Repository Populators](https://www.baeldung.com/spring-data-jpa-repository-populators)
 - [Calling Stored Procedures from Spring Data JPA Repositories](https://www.baeldung.com/spring-data-jpa-stored-procedures)
+- More articles: [[--> next]](/spring-data-jpa-repo-2/)
 
 ### Eclipse Config 
 After importing the project into Eclipse, you may see the following error:  

persistence-modules/spring-jdbc/README.md

@@ -0,0 +1,6 @@
+## Spring JDBC
+
+### Relevant Articles: 
+- [Spring JDBC Template](https://www.baeldung.com/spring-jdbc-jdbctemplate)
+- [Spring JDBC Template Testing](https://www.baeldung.com/spring-jdbctemplate-testing)
+- [Spring JDBC Template In Clause](https://www.baeldung.com/spring-jdbctemplate-in-list)

persistence-modules/spring-jdbc/pom.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-2</relativePath>
+    </parent>
+
+    <artifactId>spring-jdbc</artifactId>
+    <name>spring-jdbc</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-jdbc</artifactId>
+            <version>${spring-data-jdbc.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <spring-data-jdbc.version>2.0.3.RELEASE</spring-data-jdbc.version>
+    </properties>
+</project>

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/autogenkey/config/PersistenceConfig.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.autogenkey.config;
+package com.baeldung.spring.jdbc.autogenkey.config;
 
 import javax.sql.DataSource;
 
@@ -16,7 +16,7 @@ public class PersistenceConfig {
     public DataSource dataSource(Environment env) {
         return new EmbeddedDatabaseBuilder()
                 .setType(EmbeddedDatabaseType.H2)
-                .addScript("autogenkey-schema.sql")
+                .addScript("com/baeldung/spring/jdbc/autogenkey/autogenkey-schema.sql")
                 .build();
     }
     

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/autogenkey/repository/MessageRepositoryJDBCTemplate.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.autogenkey.repository;
+package com.baeldung.spring.jdbc.autogenkey.repository;
 
 import java.sql.PreparedStatement;
 

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/autogenkey/repository/MessageRepositorySimpleJDBCInsert.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.autogenkey.repository;
+package com.baeldung.spring.jdbc.autogenkey.repository;
 
 import java.util.HashMap;
 import java.util.Map;

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/guide/CustomSQLErrorCodeTranslator.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc.template.guide;
 
 import java.sql.SQLException;
 

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/guide/Employee.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc.template.guide;
 
 public class Employee {
     private int id;

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/guide/EmployeeDAO.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc.template.guide;
 
 import java.sql.PreparedStatement;
 import java.sql.SQLException;

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/guide/EmployeeRowMapper.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc.template.guide;
 
 import java.sql.ResultSet;
 import java.sql.SQLException;

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/guide/config/SpringJdbcConfig.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.config;
+package com.baeldung.spring.jdbc.template.guide.config;
 
 import javax.sql.DataSource;
 
@@ -10,12 +10,16 @@ import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
 
 @Configuration
-@ComponentScan("com.baeldung.jdbc")
+@ComponentScan("com.baeldung.spring.jdbc")
 public class SpringJdbcConfig {
 
     @Bean
     public DataSource dataSource() {
-        return new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.H2).addScript("classpath:jdbc/schema.sql").addScript("classpath:jdbc/test-data.sql").build();
+        return new EmbeddedDatabaseBuilder()
+          .setType(EmbeddedDatabaseType.H2)
+          .addScript("classpath:com/baeldung/spring/jdbc/template/guide/schema.sql")
+          .addScript("classpath:com/baeldung/spring/jdbc/template/guide/test-data.sql")
+          .build();
     }
 
     // @Bean

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/inclause/Employee.java

@@ -0,0 +1,42 @@
+package com.baeldung.spring.jdbc.template.inclause;
+
+public class Employee {
+    private int id;
+
+    private String firstName;
+
+    private String lastName;
+
+
+    public Employee(int id, String firstName, String lastName) {
+        this.id = id;
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(final int id) {
+        this.id = id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(final String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(final String lastName) {
+        this.lastName = lastName;
+    }
+
+
+}

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/inclause/EmployeeDAO.java

@@ -1,10 +1,4 @@
-package com.baeldung.jdbc;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-import javax.sql.DataSource;
+package com.baeldung.spring.jdbc.template.inclause;
 
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
@@ -12,6 +6,11 @@ import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
 import org.springframework.jdbc.core.namedparam.SqlParameterSource;
 import org.springframework.stereotype.Repository;
 
+import javax.sql.DataSource;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 @Repository
 public class EmployeeDAO {
     private JdbcTemplate jdbcTemplate;
@@ -22,10 +21,6 @@ public class EmployeeDAO {
         namedJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);
     }
 
-    public int getCountOfEmployees() {
-        return jdbcTemplate.queryForObject("SELECT COUNT(*) FROM EMPLOYEE", Integer.class);
-    }
-
     public List<Employee> getEmployeesFromIdListNamed(List<Integer> ids) {
         SqlParameterSource parameters = new MapSqlParameterSource("ids", ids);
         List<Employee> employees = namedJdbcTemplate.query(
@@ -63,5 +58,4 @@ public class EmployeeDAO {
 
         return employees;
     }
-
 }

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/testing/Employee.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc.template.testing;
 
 public class Employee {
     private int id;

persistence-modules/spring-jdbc/src/main/java/com/baeldung/spring/jdbc/template/testing/EmployeeDAO.java

@@ -0,0 +1,19 @@
+package com.baeldung.spring.jdbc.template.testing;
+
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import javax.sql.DataSource;
+
+@Repository
+public class EmployeeDAO {
+    private JdbcTemplate jdbcTemplate;
+
+    public void setDataSource(DataSource dataSource) {
+        jdbcTemplate = new JdbcTemplate(dataSource);
+    }
+
+    public int getCountOfEmployees() {
+        return jdbcTemplate.queryForObject("SELECT COUNT(*) FROM EMPLOYEE", Integer.class);
+    }
+}

persistence-modules/spring-jdbc/src/main/resources/com/baeldung/spring/jdbc/template/guide/application.properties

@@ -0,0 +1,3 @@
+spring.datasource.url=jdbc:mysql://localhost:3306/springjdbc
+spring.datasource.username=guest_user
+spring.datasource.password=guest_password

persistence-modules/spring-jdbc/src/main/resources/com/baeldung/spring/jdbc/template/inclause/schema.sql

@@ -0,0 +1,7 @@
+CREATE TABLE EMPLOYEE
+(
+	ID int  NOT NULL PRIMARY KEY,
+	FIRST_NAME varchar(255),
+	LAST_NAME varchar(255),
+	ADDRESS varchar(255)
+);

persistence-modules/spring-jdbc/src/main/resources/com/baeldung/spring/jdbc/template/inclause/test-data.sql

@@ -0,0 +1,7 @@
+INSERT INTO EMPLOYEE VALUES (1, 'James', 'Gosling', 'Canada');
+
+INSERT INTO EMPLOYEE VALUES (2, 'Donald', 'Knuth', 'USA');
+
+INSERT INTO EMPLOYEE VALUES (3, 'Linus', 'Torvalds', 'Finland');
+
+INSERT INTO EMPLOYEE VALUES (4, 'Dennis', 'Ritchie', 'USA');

persistence-modules/spring-jdbc/src/main/resources/com/baeldung/spring/jdbc/template/testing/schema.sql

@@ -0,0 +1,7 @@
+CREATE TABLE EMPLOYEE
+(
+	ID int  NOT NULL PRIMARY KEY,
+	FIRST_NAME varchar(255),
+	LAST_NAME varchar(255),
+	ADDRESS varchar(255)
+);

persistence-modules/spring-jdbc/src/main/resources/com/baeldung/spring/jdbc/template/testing/test-data.sql

@@ -0,0 +1,7 @@
+INSERT INTO EMPLOYEE VALUES (1, 'James', 'Gosling', 'Canada');
+
+INSERT INTO EMPLOYEE VALUES (2, 'Donald', 'Knuth', 'USA');
+
+INSERT INTO EMPLOYEE VALUES (3, 'Linus', 'Torvalds', 'Finland');
+
+INSERT INTO EMPLOYEE VALUES (4, 'Dennis', 'Ritchie', 'USA');

persistence-modules/spring-jdbc/src/test/java/com/baeldung/spring/jdbc/autogenkey/GetAutoGenKeyByJDBC.java

@@ -1,4 +1,4 @@
-package com.baeldung.jdbc.autogenkey;
+package com.baeldung.spring.jdbc.autogenkey;
 
 import static org.junit.Assert.assertEquals;
 
@@ -7,16 +7,17 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
 import org.springframework.test.context.junit4.SpringRunner;
 
-import com.baeldung.jdbc.autogenkey.repository.MessageRepositoryJDBCTemplate;
-import com.baeldung.jdbc.autogenkey.repository.MessageRepositorySimpleJDBCInsert;
+import com.baeldung.spring.jdbc.autogenkey.repository.MessageRepositoryJDBCTemplate;
+import com.baeldung.spring.jdbc.autogenkey.repository.MessageRepositorySimpleJDBCInsert;
 
 @RunWith(SpringRunner.class)
 public class GetAutoGenKeyByJDBC {
 
     @Configuration
-    @ComponentScan(basePackages = { "com.baeldung.jdbc.autogenkey" })
+    @ComponentScan(basePackages = {"com.baeldung.spring.jdbc.autogenkey"})
     public static class SpringConfig {
 
     }
@@ -35,7 +36,6 @@ public class GetAutoGenKeyByJDBC {
         String loadedMessage = messageRepositoryJDBCTemplate.getMessageById(key);
 
         assertEquals(MESSAGE_CONTENT, loadedMessage);
-
     }
 
     @Test

persistence-modules/spring-jdbc/src/test/java/com/baeldung/spring/jdbc/template/guide/EmployeeDAOIntegrationTest.java

@@ -1,9 +1,11 @@
-package com.baeldung.jdbc;
+package com.baeldung.spring.jdbc.template.guide;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import com.baeldung.jdbc.config.SpringJdbcConfig;
+import com.baeldung.spring.jdbc.template.guide.Employee;
+import com.baeldung.spring.jdbc.template.guide.EmployeeDAO;
+import com.baeldung.spring.jdbc.template.guide.config.SpringJdbcConfig;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;

persistence-modules/spring-jdbc/src/test/java/com/baeldung/spring/jdbc/template/inclause/EmployeeDAOUnitTest.java

@@ -1,22 +1,19 @@
-package com.baeldung.jdbc;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.sql.DataSource;
+package com.baeldung.spring.jdbc.template.inclause;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.Mockito;
 import org.mockito.junit.MockitoJUnitRunner;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
-import org.springframework.test.util.ReflectionTestUtils;
+
+import javax.sql.DataSource;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 @RunWith(MockitoJUnitRunner.class)
 
@@ -30,33 +27,9 @@ public class EmployeeDAOUnitTest {
     public void setup() {
         dataSource = new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.H2)
           .generateUniqueName(true)
-          .addScript("classpath:jdbc/schema.sql")
-          .addScript("classpath:jdbc/test-data.sql")
+          .addScript("classpath:com/baeldung/spring/jdbc/template/inclause/schema.sql")
+          .addScript("classpath:com/baeldung/spring/jdbc/template/inclause/test-data.sql")
           .build();
-
-    }
-
-    @Test
-    public void whenMockJdbcTemplate_thenReturnCorrectEmployeeCount() {
-        EmployeeDAO employeeDAO = new EmployeeDAO();
-        ReflectionTestUtils.setField(employeeDAO, "jdbcTemplate", jdbcTemplate);
-        Mockito.when(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM EMPLOYEE", Integer.class))
-          .thenReturn(4);
-
-        assertEquals(4, employeeDAO.getCountOfEmployees());
-
-        Mockito.when(jdbcTemplate.queryForObject(Mockito.anyString(), Mockito.eq(Integer.class)))
-          .thenReturn(3);
-
-        assertEquals(3, employeeDAO.getCountOfEmployees());
-    }
-
-    @Test
-    public void whenInjectInMemoryDataSource_thenReturnCorrectEmployeeCount() {
-        EmployeeDAO employeeDAO = new EmployeeDAO();
-        employeeDAO.setDataSource(dataSource);
-
-        assertEquals(4, employeeDAO.getCountOfEmployees());
     }
 
     @Test

persistence-modules/spring-jdbc/src/test/java/com/baeldung/spring/jdbc/template/testing/EmployeeDAOUnitTest.java

@@ -0,0 +1,56 @@
+package com.baeldung.spring.jdbc.template.testing;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+import org.springframework.test.util.ReflectionTestUtils;
+
+import javax.sql.DataSource;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@RunWith(MockitoJUnitRunner.class)
+public class EmployeeDAOUnitTest {
+    @Mock
+    JdbcTemplate jdbcTemplate;
+
+    DataSource dataSource;
+
+    @Before
+    public void setup() {
+        dataSource = new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.H2)
+          .generateUniqueName(true)
+          .addScript("classpath:com/baeldung/spring/jdbc/template/testing/schema.sql")
+          .addScript("classpath:com/baeldung/spring/jdbc/template/testing/test-data.sql")
+          .build();
+    }
+
+    @Test
+    public void whenMockJdbcTemplate_thenReturnCorrectEmployeeCount() {
+        EmployeeDAO employeeDAO = new EmployeeDAO();
+        ReflectionTestUtils.setField(employeeDAO, "jdbcTemplate", jdbcTemplate);
+        Mockito.when(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM EMPLOYEE", Integer.class))
+          .thenReturn(4);
+
+        assertEquals(4, employeeDAO.getCountOfEmployees());
+
+        Mockito.when(jdbcTemplate.queryForObject(Mockito.anyString(), Mockito.eq(Integer.class)))
+          .thenReturn(3);
+
+        assertEquals(3, employeeDAO.getCountOfEmployees());
+    }
+
+    @Test
+    public void whenInjectInMemoryDataSource_thenReturnCorrectEmployeeCount() {
+        EmployeeDAO employeeDAO = new EmployeeDAO();
+        employeeDAO.setDataSource(dataSource);
+
+        assertEquals(4, employeeDAO.getCountOfEmployees());
+    }
+}

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

@@ -2,4 +2,9 @@
 
 ### Relevant Articles: 
 - [Many-To-Many Relationship in JPA](https://www.baeldung.com/jpa-many-to-many)
+- [A Guide to JPA with Spring](https://www.baeldung.com/the-persistence-layer-with-spring-and-jpa)
+- [Bootstrapping Hibernate 5 with Spring](https://www.baeldung.com/hibernate-5-spring)
+- [Transactions with Spring and JPA](https://www.baeldung.com/transaction-configuration-with-jpa-and-spring)
+- [The DAO with Spring and Hibernate](https://www.baeldung.com/persistence-layer-with-spring-and-hibernate)
+- [Simplify the DAO with Spring and Java Generics](https://www.baeldung.com/simplifying-the-data-access-layer-with-spring-and-java-generics)
 - More articles: [[<-- prev]](/spring-jpa)

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

@@ -15,6 +15,17 @@
 
     <dependencies>
         <!-- Spring -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <version>${spring-boot.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+            <version>${spring-boot.version}</version>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-orm</artifactId>
@@ -43,8 +54,25 @@
             <artifactId>h2</artifactId>
             <version>${h2.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.tomcat</groupId>
+            <artifactId>tomcat-dbcp</artifactId>
+            <version>${tomcat-dbcp.version}</version>
+        </dependency>
+
+        <!-- utilities -->
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
 
         <!-- test scoped -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
@@ -57,6 +85,13 @@
     <properties>
         <!-- Spring -->
         <org.springframework.version>5.1.5.RELEASE</org.springframework.version>
+
+        <!-- persistence -->
+        <tomcat-dbcp.version>9.0.0.M26</tomcat-dbcp.version>
+
+        <!-- utilities -->
+        <guava.version>21.0</guava.version>
+        <spring-boot.version>2.2.6.RELEASE</spring-boot.version>
     </properties>
 
 </project>

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/hibernate/bootstrap/HibernateConf.java

@@ -51,7 +51,7 @@ public class HibernateConf {
         return transactionManager;
     }
 
-    private final Properties hibernateProperties() {
+    private Properties hibernateProperties() {
         final Properties hibernateProperties = new Properties();
         hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
         hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/AbstractHibernateDao.java

@@ -1,52 +1,49 @@
-package com.baeldung.persistence.dao.common;
-
-import java.io.Serializable;
-import java.util.List;
+package com.baeldung.spring.dao.generics;
 
+import com.google.common.base.Preconditions;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import com.google.common.base.Preconditions;
+import java.io.Serializable;
+import java.util.List;
 
 @SuppressWarnings("unchecked")
-public abstract class AbstractHibernateDao<T extends Serializable> extends AbstractDao<T> implements IOperations<T> {
+public abstract class AbstractHibernateDao<T extends Serializable> {
+    private Class<T> clazz;
 
     @Autowired
     protected SessionFactory sessionFactory;
 
-    // API
+    public void setClazz(final Class<T> clazzToSet) {
+        clazz = Preconditions.checkNotNull(clazzToSet);
+    }
 
-    @Override
+    // API
     public T findOne(final long id) {
         return (T) getCurrentSession().get(clazz, id);
     }
 
-    @Override
     public List<T> findAll() {
         return getCurrentSession().createQuery("from " + clazz.getName()).list();
     }
 
-    @Override
     public T create(final T entity) {
         Preconditions.checkNotNull(entity);
         getCurrentSession().saveOrUpdate(entity);
         return entity;
     }
 
-    @Override
     public T update(final T entity) {
         Preconditions.checkNotNull(entity);
         return (T) getCurrentSession().merge(entity);
     }
 
-    @Override
     public void delete(final T entity) {
         Preconditions.checkNotNull(entity);
         getCurrentSession().delete(entity);
     }
 
-    @Override
     public void deleteById(final long entityId) {
         final T entity = findOne(entityId);
         Preconditions.checkState(entity != null);
@@ -56,5 +53,4 @@ public abstract class AbstractHibernateDao<T extends Serializable> extends Abstr
     protected Session getCurrentSession() {
         return sessionFactory.getCurrentSession();
     }
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/AbstractJpaDAO.java

@@ -1,4 +1,4 @@
-package com.baeldung.jpa.dao;
+package com.baeldung.spring.dao.generics;
 
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
@@ -6,7 +6,6 @@ import java.io.Serializable;
 import java.util.List;
 
 public abstract class AbstractJpaDAO<T extends Serializable> {
-
     private Class<T> clazz;
 
     @PersistenceContext(unitName = "entityManagerFactory")
@@ -42,5 +41,4 @@ public abstract class AbstractJpaDAO<T extends Serializable> {
         final T entity = findOne(entityId);
         delete(entity);
     }
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/Foo.java

@@ -1,21 +1,10 @@
-package com.baeldung.persistence.model;
-
-import java.io.Serializable;
-
-import javax.persistence.Cacheable;
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.FetchType;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.JoinColumn;
-import javax.persistence.ManyToOne;
-import javax.persistence.NamedNativeQueries;
-import javax.persistence.NamedNativeQuery;
+package com.baeldung.spring.dao.generics;
 
 import org.hibernate.annotations.CacheConcurrencyStrategy;
 
+import javax.persistence.*;
+import java.io.Serializable;
+
 @Entity
 @Cacheable
 @org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
@@ -41,18 +30,6 @@ public class Foo implements Serializable {
     @Column(name = "NAME")
     private String name;
 
-    @ManyToOne(targetEntity = Bar.class, fetch = FetchType.EAGER)
-    @JoinColumn(name = "BAR_ID")
-    private Bar bar;
-
-    public Bar getBar() {
-        return bar;
-    }
-
-    public void setBar(final Bar bar) {
-        this.bar = bar;
-    }
-
     public Long getId() {
         return id;
     }
@@ -100,5 +77,4 @@ public class Foo implements Serializable {
         builder.append("Foo [name=").append(name).append("]");
         return builder.toString();
     }
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/FooService.java

@@ -0,0 +1,21 @@
+package com.baeldung.spring.dao.generics;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class FooService implements IFooService {
+
+    IGenericDao<Foo> dao;
+
+    @Autowired
+    public void setDao(IGenericDao<Foo> daoToSet) {
+        dao = daoToSet;
+        dao.setClazz(Foo.class);
+    }
+
+    @Override
+    public Foo retrieveByName(String name) {
+        return null;
+    }
+}

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/GenericHibernateDao.java

@@ -1,11 +1,11 @@
-package com.baeldung.persistence.dao.common;
-
-import java.io.Serializable;
+package com.baeldung.spring.dao.generics;
 
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Repository;
 
+import java.io.Serializable;
+
 @Repository
 @Scope(BeanDefinition.SCOPE_PROTOTYPE)
 public class GenericHibernateDao<T extends Serializable> extends AbstractHibernateDao<T> implements IGenericDao<T> {

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/GenericJpaDao.java

@@ -1,12 +1,10 @@
-package com.baeldung.persistence.dao.common;
-
-import java.io.Serializable;
+package com.baeldung.spring.dao.generics;
 
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Repository;
 
-import com.baeldung.jpa.dao.AbstractJpaDAO;
+import java.io.Serializable;
 
 @Repository
 @Scope(BeanDefinition.SCOPE_PROTOTYPE)

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/IFooService.java

@@ -0,0 +1,5 @@
+package com.baeldung.spring.dao.generics;
+
+public interface IFooService {
+    Foo retrieveByName(String name);
+}

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/dao/generics/IGenericDao.java

@@ -1,9 +1,10 @@
-package com.baeldung.persistence.dao.common;
+package com.baeldung.spring.dao.generics;
 
 import java.io.Serializable;
 import java.util.List;
 
-public interface IOperations<T extends Serializable> {
+public interface IGenericDao<T extends Serializable> {
+    void setClazz(Class< T > clazzToSet);
 
     T findOne(final long id);
 
@@ -16,5 +17,4 @@ public interface IOperations<T extends Serializable> {
     void delete(final T entity);
 
     void deleteById(final long entityId);
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/hibernate/AbstractHibernateDao.java

@@ -0,0 +1,56 @@
+package com.baeldung.spring.hibernate;
+
+import com.google.common.base.Preconditions;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.io.Serializable;
+import java.util.List;
+
+@SuppressWarnings("unchecked")
+public abstract class AbstractHibernateDao<T extends Serializable> {
+    private Class<T> clazz;
+
+    @Autowired
+    protected SessionFactory sessionFactory;
+
+    protected final void setClazz(final Class<T> clazzToSet) {
+        clazz = Preconditions.checkNotNull(clazzToSet);
+    }
+
+    // API
+    public T findOne(final long id) {
+        return (T) getCurrentSession().get(clazz, id);
+    }
+
+    public List<T> findAll() {
+        return getCurrentSession().createQuery("from " + clazz.getName()).list();
+    }
+
+    public T create(final T entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().saveOrUpdate(entity);
+        return entity;
+    }
+
+    public T update(final T entity) {
+        Preconditions.checkNotNull(entity);
+        return (T) getCurrentSession().merge(entity);
+    }
+
+    public void delete(final T entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().delete(entity);
+    }
+
+    public void deleteById(final long entityId) {
+        final T entity = findOne(entityId);
+        Preconditions.checkState(entity != null);
+        delete(entity);
+    }
+
+    protected Session getCurrentSession() {
+        return sessionFactory.getCurrentSession();
+    }
+}

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/hibernate/Foo.java

@@ -0,0 +1,42 @@
+package com.baeldung.spring.hibernate;
+
+import javax.persistence.*;
+import java.io.Serializable;
+
+@Entity
+public class Foo implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    public Foo() {
+        super();
+    }
+
+    public Foo(final String name) {
+        super();
+
+        this.name = name;
+    }
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "ID")
+    private Long id;
+    @Column(name = "NAME")
+    private String name;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(final Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(final String name) {
+        this.name = name;
+    }
+}

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/hibernate/FooDao.java

@@ -1,14 +1,9 @@
-package com.baeldung.hibernate.dao;
+package com.baeldung.spring.hibernate;
 
-import com.baeldung.persistence.model.Foo;
 import org.springframework.stereotype.Repository;
 
-import com.baeldung.jpa.dao.IFooDao;
-import com.baeldung.persistence.dao.common.AbstractHibernateDao;
-
 @Repository
 public class FooDao extends AbstractHibernateDao<Foo> implements IFooDao {
-
     public FooDao() {
         super();
 
@@ -16,5 +11,4 @@ public class FooDao extends AbstractHibernateDao<Foo> implements IFooDao {
     }
 
     // API
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/hibernate/IFooDao.java

@@ -1,21 +1,15 @@
-package com.baeldung.jpa.dao;
+package com.baeldung.spring.hibernate;
 
 import java.util.List;
 
-import com.baeldung.persistence.model.Foo;
-
 public interface IFooDao {
-
     Foo findOne(long id);
 
     List<Foo> findAll();
 
-    Foo create(Foo entity);
-
     Foo update(Foo entity);
 
     void delete(Foo entity);
 
     void deleteById(long entityId);
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/jpa/guide/PersistenceJPAConfig.java

@@ -1,9 +1,8 @@
-package com.baeldung.config;
+package com.baeldung.spring.jpa.guide;
 
 import com.google.common.base.Preconditions;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.env.Environment;
@@ -21,17 +20,12 @@ import java.util.Properties;
 
 @Configuration
 @EnableTransactionManagement
-@PropertySource({ "classpath:persistence-h2.properties" })
-@ComponentScan({ "com.baeldung.persistence","com.baeldung.jpa.dao" })
+@PropertySource("classpath:persistence-h2.properties")
 public class PersistenceJPAConfig {
 
     @Autowired
     private Environment env;
 
-    public PersistenceJPAConfig() {
-        super();
-    }
-
     // beans
 
     @Bean
@@ -76,8 +70,6 @@ public class PersistenceJPAConfig {
         hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
         hibernateProperties.setProperty("hibernate.cache.use_second_level_cache", "false");
 
-    
         return hibernateProperties;
     }
-
 }

persistence-modules/spring-jpa-2/src/main/java/com/baeldung/spring/transaction/FooService.java

@@ -0,0 +1,8 @@
+package com.baeldung.spring.transaction;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional
+public class FooService {}

persistence-modules/spring-jpa-2/src/main/resources/application.properties

@@ -0,0 +1,11 @@
+# H2
+spring.datasource.driver-class-name=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+spring.datasource.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
+
+# MySQL
+#spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+#spring.datasource.username=mysqluser
+#spring.datasource.password=mysqlpass
+#spring.datasource.url=jdbc:mysql://localhost:3306/myDb?createDatabaseIfNotExist=true

persistence-modules/spring-jpa-2/src/main/resources/persistence-jpa-config.xml

@@ -6,7 +6,6 @@
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd"
 >
-
     <context:property-placeholder location="classpath:persistence-h2.properties"/>
 
     <bean id="myEmf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
@@ -14,8 +13,6 @@
         <property name="packagesToScan" value="com.baeldung.persistence.model"/>
         <property name="jpaVendorAdapter">
             <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
-            <!-- <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" /> <property name="generateDdl" value="${jpa.generateDdl}" /> <property name="databasePlatform" 
-                value="${persistence.dialect}" /> </bean> -->
         </property>
         <property name="jpaProperties">
             <props>

persistence-modules/spring-persistence-simple-2/README.md

@@ -1,6 +0,0 @@
-### Relevant Articles:
-
-- [Spring JdbcTemplate Unit Testing](https://www.baeldung.com/spring-jdbctemplate-testing)
-- [Using a List of Values in a JdbcTemplate IN Clause](https://www.baeldung.com/spring-jdbctemplate-in-list)
-- [Transactional Annotations: Spring vs. JTA](https://www.baeldung.com/spring-vs-jta-transactional)
-- [Test a Mock JNDI Datasource with Spring](https://www.baeldung.com/spring-mock-jndi-datasource)

persistence-modules/spring-persistence-simple-2/pom.xml

@@ -1,69 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-    <artifactId>spring-persistence-simple-2</artifactId>
-    <version>0.1-SNAPSHOT</version>
-    <name>spring-persistence-simple-2</name>
-
-    <parent>
-        <groupId>com.baeldung</groupId>
-        <artifactId>persistence-modules</artifactId>
-        <version>1.0.0-SNAPSHOT</version>
-    </parent>
-
-    <dependencies>
-        <!-- Spring -->
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-orm</artifactId>
-            <version>${org.springframework.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
-            <version>${org.springframework.version}</version>
-        </dependency>
-
-        <!-- persistence -->
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <version>${h2.version}</version>
-            <scope>test</scope>
-        </dependency>
-		
-        <!-- simple-jndi -->
-        <dependency>
-            <groupId>com.github.h-thurow</groupId>
-            <artifactId>simple-jndi</artifactId>
-            <version>${simple-jndi.version}</version>
-        </dependency>
-
-        <!-- test scoped -->
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-test</artifactId>
-            <version>${org.springframework.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId> 
-            <artifactId>mockito-core</artifactId>
-            <version>${mockito.version}</version> 
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
-    <properties>
-        <!-- Spring -->
-        <org.springframework.version>5.2.4.RELEASE</org.springframework.version>
-        <!-- persistence -->
-        <h2.version>1.4.200</h2.version>
-        <!-- simple-jndi -->
-        <simple-jndi.version>0.23.0</simple-jndi.version>
-        <!-- test scoped -->
-        <mockito.version>3.3.3</mockito.version>
-    </properties>
-
-</project>

persistence-modules/spring-persistence-simple-2/src/main/resources/jdbc/schema.sql

@@ -1,6 +0,0 @@
-CREATE TABLE EMPLOYEE
-(
-    ID int NOT NULL PRIMARY KEY,
-    FIRST_NAME varchar(255),
-    LAST_NAME varchar(255)
-);

persistence-modules/spring-persistence-simple-2/src/main/resources/jdbc/test-data.sql

@@ -1,4 +0,0 @@
-INSERT INTO EMPLOYEE VALUES (1, 'James', 'Gosling');
-INSERT INTO EMPLOYEE VALUES (2, 'Donald', 'Knuth');
-INSERT INTO EMPLOYEE VALUES (3, 'Linus', 'Torvalds');
-INSERT INTO EMPLOYEE VALUES (4, 'Dennis', 'Ritchie');

persistence-modules/spring-persistence-simple/README.md

@@ -4,15 +4,8 @@
 
 
 ### Relevant Articles: 
-- [A Guide to JPA with Spring](https://www.baeldung.com/the-persistence-layer-with-spring-and-jpa)
-- [Bootstrapping Hibernate 5 with Spring](http://www.baeldung.com/hibernate-5-spring)
-- [The DAO with Spring and Hibernate](https://www.baeldung.com/persistence-layer-with-spring-and-hibernate)
-- [Simplify the DAO with Spring and Java Generics](https://www.baeldung.com/simplifying-the-data-access-layer-with-spring-and-java-generics)
-- [Transactions with Spring and JPA](https://www.baeldung.com/transaction-configuration-with-jpa-and-spring)
-- [Introduction to Spring Data JPA](http://www.baeldung.com/the-persistence-layer-with-spring-data-jpa)
-- [Spring Data JPA @Query](http://www.baeldung.com/spring-data-jpa-query)
-- [Spring JDBC](https://www.baeldung.com/spring-jdbc-jdbctemplate)
 - [Transaction Propagation and Isolation in Spring @Transactional](https://www.baeldung.com/spring-transactional-propagation-isolation)
+- [Mock JNDI Datasource](https://www.baeldung.com/spring-mock-jndi-datasource)
 
 ### Eclipse Config 
 After importing the project into Eclipse, you may see the following error:  

persistence-modules/spring-persistence-simple/pom.xml

@@ -24,72 +24,23 @@
             <artifactId>spring-context</artifactId>
             <version>${org.springframework.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-aspects</artifactId>
-            <version>${org.springframework.version}</version>
-        </dependency>
+
         <!-- persistence -->
-        <dependency>
-            <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-core</artifactId>
-            <version>${hibernate.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>javax.transaction</groupId>
-            <artifactId>jta</artifactId>
-            <version>${jta.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-entitymanager</artifactId>
-            <version>${hibernate.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
-            <version>${mysql-connector-java.version}</version>
-            <scope>runtime</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.data</groupId>
-            <artifactId>spring-data-jpa</artifactId>
-            <version>${spring-data-jpa.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
             <version>${h2.version}</version>
-        </dependency>
-
-        <dependency>
-            <groupId>org.apache.tomcat</groupId>
-            <artifactId>tomcat-dbcp</artifactId>
-            <version>${tomcat-dbcp.version}</version>
-        </dependency>
-
-        <!-- utils -->
-
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-            <version>${guava.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.assertj</groupId>
-            <artifactId>assertj-core</artifactId>
-            <version>${assertj.version}</version>
-        </dependency>
-
-        <!-- test scoped -->
-
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-            <version>${commons-lang3.version}</version>
             <scope>test</scope>
         </dependency>
 
+        <!-- simple-jndi -->
+        <dependency>
+            <groupId>com.github.h-thurow</groupId>
+            <artifactId>simple-jndi</artifactId>
+            <version>${simple-jndi.version}</version>
+        </dependency>
+
+        <!-- test scoped -->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
@@ -97,56 +48,21 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>com.querydsl</groupId>
-            <artifactId>querydsl-jpa</artifactId>
-            <version>${querydsl.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.querydsl</groupId>
-            <artifactId>querydsl-apt</artifactId>
-            <version>${querydsl.version}</version>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>${mockito.version}</version>
+            <scope>test</scope>
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>com.mysema.maven</groupId>
-                <artifactId>apt-maven-plugin</artifactId>
-                <version>${apt-maven-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <phase>generate-sources</phase>
-                        <goals>
-                            <goal>process</goal>
-                        </goals>
-                        <configuration>
-                            <outputDirectory>target/generated-sources</outputDirectory>
-                            <processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
         <!-- Spring -->
-        <org.springframework.version>5.2.6.RELEASE</org.springframework.version>
-
+        <org.springframework.version>5.2.4.RELEASE</org.springframework.version>
         <!-- persistence -->
-        <hibernate.version>5.4.13.Final</hibernate.version>
-        <mysql-connector-java.version>8.0.19</mysql-connector-java.version>
         <h2.version>1.4.200</h2.version>
-        <spring-data-jpa.version>2.2.7.RELEASE</spring-data-jpa.version>
-        <tomcat-dbcp.version>9.0.0.M26</tomcat-dbcp.version>
-        <jta.version>1.1</jta.version>
-        <querydsl.version>4.2.1</querydsl.version>
-
-        <!-- util -->
-        <guava.version>21.0</guava.version>
-        <assertj.version>3.8.0</assertj.version>
-        <apt-maven-plugin.version>1.1.3</apt-maven-plugin.version>
+        <!-- simple-jndi -->
+        <simple-jndi.version>0.23.0</simple-jndi.version>
+        <!-- test scoped -->
+        <mockito.version>3.3.3</mockito.version>
     </properties>
-
 </project>

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/config/PersistenceConfig.java

@@ -1,110 +0,0 @@
-package com.baeldung.config;
-
-import com.baeldung.persistence.service.FooService;
-import com.google.common.base.Preconditions;
-import org.apache.tomcat.dbcp.dbcp2.BasicDataSource;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.PropertySource;
-import org.springframework.core.env.Environment;
-import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
-import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
-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;
-import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
-import org.springframework.transaction.PlatformTransactionManager;
-import org.springframework.transaction.annotation.EnableTransactionManagement;
-
-import javax.sql.DataSource;
-import java.util.Properties;
-
-@Configuration
-@EnableTransactionManagement
-@EnableJpaAuditing
-@PropertySource({ "classpath:persistence-mysql.properties" })
-@ComponentScan(basePackages = { "com.baeldung.persistence.dao", "com.baeldung.jpa.dao" })
-public class PersistenceConfig {
-
-    @Autowired
-    private Environment env;
-
-    public PersistenceConfig() {
-        super();
-    }
-
-    @Bean
-    public LocalSessionFactoryBean sessionFactory() {
-        final LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
-        sessionFactory.setDataSource(restDataSource());
-        sessionFactory.setPackagesToScan("com.baeldung.persistence.model");
-        sessionFactory.setHibernateProperties(hibernateProperties());
-
-        return sessionFactory;
-    }
-
-    @Bean
-    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
-        final LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
-        emf.setDataSource(restDataSource());
-        emf.setPackagesToScan("com.baeldung.persistence.model");
-
-        final JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
-        emf.setJpaVendorAdapter(vendorAdapter);
-        emf.setJpaProperties(hibernateProperties());
-
-        return emf;
-    }
-
-    @Bean
-    public DataSource restDataSource() {
-        final BasicDataSource dataSource = new BasicDataSource();
-        dataSource.setDriverClassName(Preconditions.checkNotNull(env.getProperty("jdbc.driverClassName")));
-        dataSource.setUrl(Preconditions.checkNotNull(env.getProperty("jdbc.url")));
-        dataSource.setUsername(Preconditions.checkNotNull(env.getProperty("jdbc.user")));
-        dataSource.setPassword(Preconditions.checkNotNull(env.getProperty("jdbc.pass")));
-
-        return dataSource;
-    }
-
-    @Bean
-    public PlatformTransactionManager hibernateTransactionManager() {
-        final HibernateTransactionManager transactionManager = new HibernateTransactionManager();
-        transactionManager.setSessionFactory(sessionFactory().getObject());
-        return transactionManager;
-    }
-
-    @Bean
-    public PlatformTransactionManager jpaTransactionManager() {
-        final JpaTransactionManager transactionManager = new JpaTransactionManager();
-        transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
-        return transactionManager;
-    }
-
-    @Bean
-    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
-        return new PersistenceExceptionTranslationPostProcessor();
-    }
-
-    @Bean
-    public FooService fooService() {
-        return new FooService();
-    }
-
-    private Properties hibernateProperties() {
-        final Properties hibernateProperties = new Properties();
-        hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
-        hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
-        hibernateProperties.setProperty("hibernate.show_sql", "true");
-
-        // Envers properties
-        hibernateProperties.setProperty("org.hibernate.envers.audit_table_suffix", env.getProperty("envers.audit_table_suffix"));
-
-        return hibernateProperties;
-    }
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/jpa/dao/FooDao.java

@@ -1,17 +0,0 @@
-package com.baeldung.jpa.dao;
-
-import com.baeldung.persistence.model.Foo;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public class FooDao extends AbstractJpaDAO<Foo> implements IFooDao {
-
-    public FooDao() {
-        super();
-
-        setClazz(Foo.class);
-    }
-
-    // API
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/persistence/dao/common/AbstractDao.java

@@ -1,14 +0,0 @@
-package com.baeldung.persistence.dao.common;
-
-import java.io.Serializable;
-
-import com.google.common.base.Preconditions;
-
-public abstract class AbstractDao<T extends Serializable> implements IOperations<T> {
-
-    protected Class<T> clazz;
-
-    protected final void setClazz(final Class<T> clazzToSet) {
-        clazz = Preconditions.checkNotNull(clazzToSet);
-    }
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/persistence/dao/common/IGenericDao.java

@@ -1,7 +0,0 @@
-package com.baeldung.persistence.dao.common;
-
-import java.io.Serializable;
-
-public interface IGenericDao<T extends Serializable> extends IOperations<T> {
-    //
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/persistence/model/Bar.java

@@ -1,102 +0,0 @@
-package com.baeldung.persistence.model;
-
-import java.io.Serializable;
-import java.util.List;
-
-import javax.persistence.CascadeType;
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.FetchType;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.OneToMany;
-import javax.persistence.OrderBy;
-
-@Entity
-public class Bar implements Serializable {
-    private static final long serialVersionUID = 1L;
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.AUTO)
-    private long id;
-
-    @Column(nullable = false)
-    private String name;
-
-    @OneToMany(mappedBy = "bar", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
-    @OrderBy("name ASC")
-    List<Foo> fooList;
-
-    public Bar() {
-        super();
-    }
-
-    public Bar(final String name) {
-        super();
-
-        this.name = name;
-    }
-
-    // API
-
-    public long getId() {
-        return id;
-    }
-
-    public void setId(final long id) {
-
-        this.id = id;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(final String name) {
-        this.name = name;
-    }
-
-    public List<Foo> getFooList() {
-        return fooList;
-    }
-
-    public void setFooList(final List<Foo> fooList) {
-        this.fooList = fooList;
-    }
-
-    //
-
-    @Override
-    public int hashCode() {
-        final int prime = 31;
-        int result = 1;
-        result = prime * result + ((name == null) ? 0 : name.hashCode());
-        return result;
-    }
-
-    @Override
-    public boolean equals(final Object obj) {
-        if (this == obj)
-            return true;
-        if (obj == null)
-            return false;
-        if (getClass() != obj.getClass())
-            return false;
-        final Bar other = (Bar) obj;
-        if (name == null) {
-            if (other.name != null)
-                return false;
-        } else if (!name.equals(other.name))
-            return false;
-        return true;
-    }
-
-    @Override
-    public String toString() {
-        final StringBuilder builder = new StringBuilder();
-        builder.append("Bar [name=").append(name).append("]");
-        return builder.toString();
-    }
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/persistence/service/FooService.java

@@ -1,36 +0,0 @@
-package com.baeldung.persistence.service;
-
-import java.util.List;
-
-import com.baeldung.jpa.dao.IFooDao;
-import com.baeldung.persistence.model.Foo;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-@Service
-@Transactional
-public class FooService {
-
-    @Autowired
-    private IFooDao dao;
-
-    public FooService() {
-        super();
-    }
-
-    // API
-
-    public void create(final Foo entity) {
-        dao.create(entity);
-    }
-
-    public Foo findOne(final long id) {
-        return dao.findOne(id);
-    }
-
-    public List<Foo> findAll() {
-        return dao.findAll();
-    }
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/spring/data/persistence/model/Possession.java

@@ -1,86 +0,0 @@
-package com.baeldung.spring.data.persistence.model;
-
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.Table;
-
-@Entity
-@Table
-public class Possession {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private long id;
-
-    private String name;
-
-    public Possession() {
-        super();
-    }
-
-    public Possession(final String name) {
-        super();
-
-        this.name = name;
-    }
-
-    public long getId() {
-        return id;
-    }
-
-    public void setId(final int id) {
-        this.id = id;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(final String name) {
-        this.name = name;
-    }
-
-    @Override
-    public int hashCode() {
-        final int prime = 31;
-        int result = 1;
-        result = (prime * result) + (int) (id ^ (id >>> 32));
-        result = (prime * result) + ((name == null) ? 0 : name.hashCode());
-        return result;
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (obj == null) {
-            return false;
-        }
-        if (getClass() != obj.getClass()) {
-            return false;
-        }
-        final Possession other = (Possession) obj;
-        if (id != other.id) {
-            return false;
-        }
-        if (name == null) {
-            if (other.name != null) {
-                return false;
-            }
-        } else if (!name.equals(other.name)) {
-            return false;
-        }
-        return true;
-    }
-
-    @Override
-    public String toString() {
-        final StringBuilder builder = new StringBuilder();
-        builder.append("Possesion [id=").append(id).append(", name=").append(name).append("]");
-        return builder.toString();
-    }
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/spring/data/persistence/repository/UserRepositoryCustomImpl.java

@@ -1,52 +0,0 @@
-package com.baeldung.spring.data.persistence.repository;
-
-import com.baeldung.spring.data.persistence.model.User;
-
-import javax.persistence.EntityManager;
-import javax.persistence.PersistenceContext;
-import javax.persistence.criteria.*;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-public class UserRepositoryCustomImpl implements UserRepositoryCustom {
-
-    @PersistenceContext
-    private EntityManager entityManager;
-
-    @Override
-    public List<User> findUserByEmails(Set<String> emails) {
-        CriteriaBuilder cb = entityManager.getCriteriaBuilder();
-        CriteriaQuery<User> query = cb.createQuery(User.class);
-        Root<User> user = query.from(User.class);
-
-        Path<String> emailPath = user.get("email");
-
-        List<Predicate> predicates = new ArrayList<>();
-        for (String email : emails) {
-
-            predicates.add(cb.like(emailPath, email));
-
-        }
-        query.select(user)
-            .where(cb.or(predicates.toArray(new Predicate[predicates.size()])));
-
-        return entityManager.createQuery(query)
-            .getResultList();
-    }
-    
-    @Override
-    public List<User> findAllUsersByPredicates(Collection<java.util.function.Predicate<User>> predicates) {
-        List<User> allUsers = entityManager.createQuery("select u from User u", User.class).getResultList();
-        Stream<User> allUsersStream = allUsers.stream();
-        for (java.util.function.Predicate<User> predicate : predicates) {
-            allUsersStream = allUsersStream.filter(predicate);
-        }
-
-        return allUsersStream.collect(Collectors.toList());
-    }
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/spring/data/persistence/service/IFooService.java

@@ -1,11 +0,0 @@
-package com.baeldung.spring.data.persistence.service;
-
-import com.baeldung.spring.data.persistence.model.Foo;
-
-import com.baeldung.persistence.dao.common.IOperations;
-
-public interface IFooService extends IOperations<Foo> {
-
-    Foo retrieveByName(String name);
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/spring/data/persistence/service/common/AbstractService.java

@@ -1,56 +0,0 @@
-package com.baeldung.spring.data.persistence.service.common;
-
-import java.io.Serializable;
-import java.util.List;
-
-import org.springframework.data.repository.PagingAndSortingRepository;
-import org.springframework.transaction.annotation.Transactional;
-
-import com.baeldung.persistence.dao.common.IOperations;
-import com.google.common.collect.Lists;
-
-@Transactional
-public abstract class AbstractService<T extends Serializable> implements IOperations<T> {
-
-    // read - one
-
-    @Override
-    @Transactional(readOnly = true)
-    public T findOne(final long id) {
-        return getDao().findById(id).orElse(null);
-    }
-
-    // read - all
-
-    @Override
-    @Transactional(readOnly = true)
-    public List<T> findAll() {
-        return Lists.newArrayList(getDao().findAll());
-    }
-
-    // write
-
-    @Override
-    public T create(final T entity) {
-        return getDao().save(entity);
-    }
-
-    @Override
-    public T update(final T entity) {
-        return getDao().save(entity);
-    }
-    
-    @Override
-    public void delete(T entity) {
-        getDao().delete(entity);
-    }
-    
-    @Override
-    public void deleteById(long entityId) {
-        T entity = findOne(entityId);
-        delete(entity);
-    }
-
-    protected abstract PagingAndSortingRepository<T, Long> getDao();
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/spring/data/persistence/service/impl/FooService.java

@@ -1,38 +0,0 @@
-package com.baeldung.spring.data.persistence.service.impl;
-
-
-import com.baeldung.spring.data.persistence.model.Foo;
-import com.baeldung.spring.data.persistence.repository.IFooDao;
-import com.baeldung.spring.data.persistence.service.IFooService;
-import com.baeldung.spring.data.persistence.service.common.AbstractService;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.repository.PagingAndSortingRepository;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-@Service
-@Transactional
-public class FooService extends AbstractService<Foo> implements IFooService {
-
-    @Autowired
-    private IFooDao dao;
-
-    public FooService() {
-        super();
-    }
-
-    // API
-
-    @Override
-    protected PagingAndSortingRepository<Foo, Long> getDao() {
-        return dao;
-    }
-
-    // custom methods
-
-    @Override
-    public Foo retrieveByName(final String name) {
-        return dao.retrieveByName(name);
-    }
-
-}

persistence-modules/spring-persistence-simple/src/main/java/com/baeldung/util/IDUtil.java

@@ -1,33 +0,0 @@
-package com.baeldung.util;
-
-import java.util.Random;
-
-public final class IDUtil {
-
-    private IDUtil() {
-        throw new AssertionError();
-    }
-
-    // API
-
-    public static String randomPositiveLongAsString() {
-        return Long.toString(randomPositiveLong());
-    }
-
-    public static String randomNegativeLongAsString() {
-        return Long.toString(randomNegativeLong());
-    }
-
-    public static long randomPositiveLong() {
-        long id = new Random().nextLong() * 10000;
-        id = (id < 0) ? (-1 * id) : id;
-        return id;
-    }
-
-    private static long randomNegativeLong() {
-        long id = new Random().nextLong() * 10000;
-        id = (id > 0) ? (-1 * id) : id;
-        return id;
-    }
-
-}