persistence work

Author: Eugen

spring-security-rest-full/pom.xml

@@ -80,6 +80,11 @@
 			<artifactId>spring-orm</artifactId>
 			<version>${org.springframework.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.data</groupId>
+			<artifactId>spring-data-jpa</artifactId>
+			<version>${spring-data-jpa.version}</version>
+		</dependency>
 		<dependency>
 			<groupId>org.hibernate</groupId>
 			<artifactId>hibernate-core</artifactId>
@@ -210,6 +215,7 @@
 		<!-- persistence -->
 		<hibernate.version>4.2.2.Final</hibernate.version>
 		<mysql-connector-java.version>5.1.25</mysql-connector-java.version>
+        <spring-data-jpa.version>1.3.2.RELEASE</spring-data-jpa.version>
 
 		<!-- logging -->
 		<org.slf4j.version>1.7.5</org.slf4j.version>

…/persistence/dao/common/IOperations.java …rg/baeldung/persistence/IOperations.javaspring-security-rest-full/src/main/java/org/baeldung/persistence/dao/common/IOperations.java renamed to spring-security-rest-full/src/main/java/org/baeldung/persistence/IOperations.java spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/common/IOperations.java renamed to spring-security-rest-full/src/main/java/org/baeldung/persistence/IOperations.java

@@ -1,4 +1,4 @@
-package org.baeldung.persistence.dao.common;
+package org.baeldung.persistence;
 
 import java.io.Serializable;
 import java.util.List;
@@ -9,7 +9,7 @@ public interface IOperations<T extends Serializable> {
 
     List<T> findAll();
 
-    void create(final T entity);
+    T create(final T entity);
 
     T update(final T entity);
 

spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/IFooDao.java

@@ -1,8 +1,9 @@
 package org.baeldung.persistence.dao;
 
-import org.baeldung.persistence.dao.common.IOperations;
 import org.baeldung.persistence.model.Foo;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 
-public interface IFooDao extends IOperations<Foo> {
+public interface IFooDao extends JpaRepository<Foo, Long>, JpaSpecificationExecutor<Foo> {
     //
 }

spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/common/AbstractHibernateDao.java

@@ -1,6 +1,6 @@
 package org.baeldung.persistence.service;
 
-import org.baeldung.persistence.dao.common.IOperations;
+import org.baeldung.persistence.IOperations;
 import org.baeldung.persistence.model.Foo;
 
 public interface IFooService extends IOperations<Foo> {

spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/common/GenericHibernateDao.java

@@ -3,30 +3,35 @@
 import java.io.Serializable;
 import java.util.List;
 
-import org.baeldung.persistence.dao.common.IOperations;
+import org.baeldung.persistence.IOperations;
+import org.springframework.data.repository.PagingAndSortingRepository;
 import org.springframework.transaction.annotation.Transactional;
 
+import com.google.common.collect.Lists;
+
 @Transactional
 public abstract class AbstractService<T extends Serializable> implements IOperations<T> {
 
     @Override
+    @Transactional(readOnly = true)
     public T findOne(final long id) {
         return getDao().findOne(id);
     }
 
     @Override
+    @Transactional(readOnly = true)
     public List<T> findAll() {
-        return getDao().findAll();
+        return Lists.newArrayList(getDao().findAll());
     }
 
     @Override
-    public void create(final T entity) {
-        getDao().create(entity);
+    public T create(final T entity) {
+        return getDao().save(entity);
     }
 
     @Override
     public T update(final T entity) {
-        return getDao().update(entity);
+        return getDao().save(entity);
     }
 
     @Override
@@ -36,9 +41,9 @@ public void delete(final T entity) {
 
     @Override
     public void deleteById(final long entityId) {
-        getDao().deleteById(entityId);
+        getDao().delete(entityId);
     }
 
-    protected abstract IOperations<T> getDao();
+    protected abstract PagingAndSortingRepository<T, Long> getDao();
 
 }

spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/common/IGenericDao.java

@@ -1,11 +1,11 @@
 package org.baeldung.persistence.service.impl;
 
 import org.baeldung.persistence.dao.IFooDao;
-import org.baeldung.persistence.dao.common.IOperations;
 import org.baeldung.persistence.model.Foo;
 import org.baeldung.persistence.service.IFooService;
 import org.baeldung.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;
 
@@ -23,7 +23,7 @@ public FooService() {
     // API
 
     @Override
-    protected IOperations<Foo> getDao() {
+    protected PagingAndSortingRepository<Foo, Long> getDao() {
         return dao;
     }
 

spring-security-rest-full/src/main/java/org/baeldung/persistence/service/IFooService.java

@@ -8,6 +8,7 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.ImportResource;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.env.Environment;
 import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
@@ -22,6 +23,7 @@
 @EnableTransactionManagement
 @PropertySource({ "classpath:persistence-mysql.properties" })
 @ComponentScan({ "org.baeldung.persistence" })
+@ImportResource("classpath*:springDataPersistenceConfig.xml")
 public class PersistenceConfig {
 
     @Autowired