Develop Reference

How to use Persistence EntityManager along with SessionFactory in spring 4 hibernate 5?

I was using sessionFactory by autowiring it in my DAOImpl files.
Things were working fine until I started facing an issue of "Too many database connections" in certain DAO methods. After searching for possible reasons and solutions, I realized that I might have misconfigured my applicationContext.xml and the way I am using EntityManager is incorrect.
Below is my applicationContext.xml file content:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- Enables the Spring MVC #Controller programming model -->
<!-- enables cors (cross origin request) for all urls -->
<mvc:cors>
<mvc:mapping path="/**" />
</mvc:cors>
<!-- <mvc:annotation-driven /> -->
<mvc:annotation-driven>
<mvc:message-converters>
<!-- Use the HibernateAware mapper instead of the default -->
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper">
<bean class="com.typjaipur.core.objectmapper.HibernateAwareObjectMapper" />
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<context:component-scan base-package="com.typjaipur" />
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages" />
<property name="defaultEncoding" value="UTF-8" />
</bean>
<bean id="propertyPlaceholder" class="com.typjaipur.core.config.EnvironmentPropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
<value>classpath:core.properties</value>
<value>classpath:mailer.properties</value>
</list>
</property>
</bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.typjaipur.model" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.max_fetch_depth">3</prop>
<prop key="hibernate.default_batch_fetch_size">4</prop>
<prop key="hibernate.jdbc.fetch_size">50</prop>
<prop key="hibernate.jdbc.batch_size">20</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
</props>
</property>
</bean>
<bean id="hibernateTransactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="hibernateTransactionManager" />
<mvc:interceptors>
<bean class="org.springframework.orm.hibernate5.support.OpenSessionInViewInterceptor">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<mvc:interceptor>
<mvc:mapping path="/**" />
<!-- excluded urls -->
<mvc:exclude-mapping path="/" />
<bean class="com.typjaipur.interceptor.ApiAuthenticationInterceptor" />
</mvc:interceptor>
</mvc:interceptors>
<!-- Enables swgger ui -->
<mvc:resources mapping="swagger-ui.html" location="classpath:/META-INF/resources/" />
<mvc:resources mapping="/webjars/**"
location="classpath:/META-INF/resources/webjars/" />
<!-- Include a swagger configuration -->
<bean name="/applicationSwaggerConfig" class="com.typjaipur.config.SwaggerConfig" />
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<!-- <property name="maxUploadSize" value="100000"/> -->
</bean>
</beans>
Below is DAOImpl code example of how I am using EntityManager which is working too but I feel its not correct maybe.
#Repository
public class BusinessDetailsDAOImpl extends BaseDAOImpl<BusinessDetails, Long> implements BusinessDetailsDAO {
#Autowired
private SessionFactory sessionFactory;
#Override
public List<BusinessDetails> searchBusiness(BusinessSearchDTO businessSearchDTO, List<Long> businessIds) {
EntityManager entityManager = sessionFactory.getCurrentSession().getEntityManagerFactory().createEntityManager();
CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
CriteriaQuery<BusinessDetails> query = criteriaBuilder.createQuery(BusinessDetails.class);
Root<BusinessDetails> businessDetails = query.from(BusinessDetails.class);
List<Predicate> predicates = new ArrayList<Predicate>();
...//rest of code
It is tough for me to avoid sessionFactory at this point as I have used it all over my project. Is there anyway through which I can configure my xml file to allow me to use EntityManager as well as SessionFactory together?
I saw several examples of configuring EntityManager but none of them has added any line in xml file related to SessionFactory. So I am confused in this.

Use LocalContainerEntityManagerFactoryBean to create the EntityManager instead of using LocalSessionFactoryBean, so you do not have call sessionFactory.getCurrentSession().getEntityManagerFactory().createEntityManager() to get the entityManager :
In spring config file replace this current config with :
<!-- Create a datasource -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>
<!-- Create an Hibernate to Jpa adapter -->
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="generateDdl" value="true" />
<property name="showSql" value="false" />
<property name="database" value="MYSQL" />
</bean>
<!-- persistenceUnitManager is optional -->
<bean id="persistenceUnitManager" class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
<property name="defaultDataSource" ref="dataSource"/>
</bean>
<!-- create entityManagerFactory -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitManager" ref="persistenceUnitManager"/>
<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
<property name="jpaProperties">
<props>
<prop key="hibernate.temp.use_jdbc_metadata_defaults">false</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
</props>
</property>
</bean>
<!-- and create transactionManager -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
Use it like this :
#Repository
public class BusinessDetailsDAOImpl extends BaseDAOImpl<BusinessDetails, Long> implements BusinessDetailsDAO {
#PersistenceContext
protected EntityManager entityManager;
#Override
public List<BusinessDetails> searchBusiness(BusinessSearchDTO businessSearchDTO, List<Long> businessIds) {
// use directly entityManager instead of sessionFactory.getCurrentSession().getEntityManagerFactory().createEntityManager();
CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
// ...
}
Edit : update your config as follow :
<property name="jpaProperties">
<props>
<prop key="hibernate.temp.use_jdbc_metadata_defaults">false</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<!-- add this line -->
<prop key="hibernate.enable_lazy_load_no_trans">true</prop>
</props>
</property>

set timeout query on entityManager

How I can configure the timeout for persiste() query of EntityManager ? I would like that the insert request never takes more time than 1 second!
Here is the code of DAO service :
#Service
#Transactional
public class DAOServiceImpl implements DAOService {
#PersistenceContext
private EntityManager entityManager;
public void save(DAOBean bean) {
entityManager.persist(bean);
}
}
Spring config file :
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jdbc/datasource" />
<property name="lookupOnStartup" value="true" />
<property name="resourceRef" value="true" />
<property name="cache" value="false" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceProviderClass" value="org.hibernate.ejb.HibernatePersistence"/>
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<property name="dataSource" ref="dataSource"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" >
<property name="showSql" value="true"/>
</bean>
</property>
</bean>
<!-- Transactiom Manager -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<task:annotation-driven />
<context:component-scan base-package="xx.xxx.xxx" />
</beans>
i am using sqljdbc-4.0.jar driver
Thanks.

NULL Database Record Returned After Reading Database Record Immediately After Insert

I'm using Spring JMS with the JPA Hibernate implementation and I'm seeing an intermittent issue with a insert and then instant read of the same record.
web application flow:
-Data gets posted to my web applications web service and the data is sent to a Glassfish OpenMQ queue (STUInputQ below).
-com.api.listener.backoffice.STUMessageListener reads the STUInputQ queue and does a insert into our Oracle Database and then sends a message (with the new database primary key) to another queue (ArchiveQ below).
-com.api.listener.backoffice.StorableMessageListener reads the ArchiveQ queue and attempts to do an read of the database using the primary key of the database record that was inserted by com.api.listener.backoffice.STUMessageListener.
Problem:
Sometimes (about 18%) the read operation in StorableMessageListener returns null, even though the record does exist. It seems to me the insert commit hasn't processed before the read occurs even though the insert returns the sequence generated primary key. I've put a unix timestamp at the end of the method that inserts the data and the one that reads it and when the issue occurs the unix timestamps are the same, so it seems as though the read gets the message before the commit is final.
Temporary Solution:
I've added some logic to sleep the thread and that ensures that I never get a null with the database read. I don't really think the thread sleep is a long term solution. Any ideas on why it seems the STUMessageListener isn't able to commit the transaction before the StorableMessageListener reads it?
Dependencies:
hibernate-core.3.3.2.GA
hibernate-entitymanager-3.4.0.GA
spring 3.0.6.RELEASE
Java 1.5
Spring Configuration:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:hz="http://www.hazelcast.com/schema/spring"
xsi:schemaLocation="
http://www.hazelcast.com/schema/spring
http://www.hazelcast.com/schema/spring/hazelcast-spring-2.5.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<!-- Generic -->
<context:annotation-config />
<context:component-scan base-package="myapp.api" />
<aop:aspectj-autoproxy/>
<!-- JPA -->
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<tx:annotation-driven />
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
<property name="persistenceUnitName" value="MyApp" />
<property name="jpaProperties">
<props>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.generate_statistics">true</prop>
<prop key="hibernate.archive.autodetection">class</prop>
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.provider_class">com.hazelcast.hibernate.provider.HazelcastCacheProvider</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.cache.use_minimal_puts">true</prop>
</props>
</property>
</bean>
<hz:hazelcast id="instance">
<hz:config>
//rest of Hazelast config maps here
</hz:config>
</hz:hazelcast>
<hz:hibernate-region-factory id="regionFactory" instance-ref="instance"/>
<!-- Define JPA Provider Adapter -->
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="generateDdl" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.OracleDialect" />
</bean>
<bean id="dataSourceTarget" class="oracle.jdbc.pool.OracleDataSource" destroy-method="close">
<property name="URL" value="jdbc:oracle:thin:#server:1525:name" />
<property name="user" value="test" />
<property name="password" value="123" />
<property name="connectionCachingEnabled" value="true" />
<property name="connectionCacheProperties">
<props merge="default">
<prop key="MinLimit">5</prop>
<prop key="MaxLimit">50</prop>
</props>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
<property name="targetDataSource" ref="dataSourceTarget"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="false"/>
<bean id="genericDAO" class="myapp.api.dao.impl.GenericDAOImpl">
<constructor-arg>
<value>java.io.Serializable</value>
</constructor-arg>
</bean>
<bean id="springContextHolder" class="myapp.api.util.SpringContextHolder" factory-method="getInstance" />
<bean id="executionInterceptor" class="myapp.api.listener.backoffice.ExecutionInterceptor" />
<!-- JNDI-->
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate"/>
<!-- JMS -->
<bean id="jmsQueueConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiTemplate">
<ref bean="jndiTemplate"/>
</property>
<property name="jndiName" value="${jms.jndi.qconnectionfactory}">
</property>
</bean>
<bean id="myJMSConnectionFactory" class="com.api.model.vo.backoffice.OpenMqConnectionFactoryBean">
<property name="imqAddressList" value="${jms.imq.url}" />
<property name="imqDefaultUsername" value="${jms.imq.user}" />
<property name="imqDefaultPassword" value="${jms.imq.password}" />
<property name="imqHost" value="${jms.imq.host}" />
<property name="imqPort" value="${jms.imq.port}" />
</bean>
<bean id="stuMessageListener" class="com.api.listener.backoffice.STUMessageListener" />
<bean id="storeListener" class="com.api.listener.backoffice.StorableMessageListener"/>
<bean id="executionInterceptor" class="com.api.listener.backoffice.ExecutionInterceptor" />
<bean id="stuJmsContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsQueueConnectionFactory"/>
<property name="destinationName" value="STUInputQ"/>
<property name="sessionTransacted" value="false"/>
<property name="messageListener" ref="stuMessageListener" />
<property name="concurrentConsumers" value="5" />
<property name="maxConcurrentConsumers" value="100" />
<property name="receiveTimeout" value="30000" />
<property name="cacheLevelName" value="CACHE_NONE" />
</bean>
<bean id="storeJmsContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsQueueConnectionFactory"/>
<property name="destinationName" value="ArchiveQ"/>
<property name="sessionTransacted" value="false"/>
<property name="messageListener" ref="storeListener" />
<property name="concurrentConsumers" value="5" />
<property name="maxConcurrentConsumers" value="100" />
<property name="receiveTimeout" value="30000" />
<property name="cacheLevelName" value="CACHE_NONE" />
</bean>
</beans>
Persistence Configuration:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="com" transaction-type="RESOURCE_LOCAL">
</persistence-unit>
</persistence>
Classes that insert record:
public class STUMessageListener implements javax.jms.MessageListener{
#Autowired
StoringService storingService;
#Transactional
public void onMessage(Message message) throws RuntimeException {
try {
Object omsg = ((ObjectMessage) message).getObject();
if (omsg instanceof StorableMessage) {
StorableMessage storableMessage = (StorableMessage) omsg;
//StorableMessage insert into Database
storingService.store(storableMessage);
//jms logic here to send message to next queue (ArchiveQ)
}
catch (Throwable ex) {
throw new RuntimeException(ex);
}
}
#Service("storingService")
public class StoringServiceImpl{
#Autowired
MessagesDAO messagesDAO;
#Transactional
public StorableMessage store(StorableMessage storableMessage) {
messagesDAO.save(storableMessage);
}
}
#Repository("messagesDAO")
public class MessagesDAOImpl{
private Class<T> type
#PersistenceContext
EntityManager entityManager;
public void save(T object) {
entityManager.persist(object);
}
public T findById(Serializable id) {
return entityManager.find(type, id);
}
}
Classes that Read the Database Record:
public class StorableMessageListener implements javax.jms.MessageListener {
#Autowired
MessageDAO messageDAO;
#Transactional
public void onMessage(Message message) throws RuntimeException {
if (omsg instanceof StorableMessage) {
//this is where null is returned for the Messages object 18% of the time
//sleep thread by 1 second logic here helps eliminate the null Messages object
//uses same MessageDAO as above
Messages msg = messageDAO.findById(storableMessage.getMessageKey());
}
}

Try to change the annotation of the insert method as
#Transactional(propagation = Propagation.REQUIRES_NEW)
This will commit the insert as soon as the method finishes.

Spring/JPA/Hibernate persist entity : Nothing happen

I'm trying to make an application with Spring 3, JPA 2 and Hibernate 3.
I have a problem when y persist an entity : nothing happen ! Data are not inserted in database, and not query is executed.
But when i'm using a request like query.getResultList() a select works correctly.
So I think my problem is only on a persist/update and on the transaction manager but i'm not really good with spring.
Can you help me please ?
Here are my configuration files :
My applicationContext.xml
<jee:jndi-lookup id="soireeentreamis_DS" jndi-name="jdbc/soireeentreamis" />
<bean id="persistenceUnitManager"
class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
<property name="persistenceXmlLocations">
<list>
<value>classpath*:META-INF/persistence.xml</value>
</list>
</property>
<property name="defaultDataSource" ref="soireeentreamis_DS" />
<property name="dataSources">
<map>
<entry key="soireeentreamisDS" value-ref="soireeentreamis_DS" />
</map>
</property>
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitManager" ref="persistenceUnitManager" />
<property name="persistenceUnitName" value="soireeentreamisPU" />
<property name="jpaDialect">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="false" />
</bean>
</property>
</bean>
<bean id="soireeentreamisTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="jpaDialect">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
</property>
</bean>
<tx:annotation-driven transaction-manager="soireeentreamisTransactionManager" />
<context:annotation-config />
</beans>
My persistence.xml
<persistence-unit name="soireeentreamisPU"
transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>soireeentreamisDS</non-jta-data-source>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
<property name="hibernate.hbm2ddl.auto" value="create"/>
</properties>
</persistence-unit>
My service
#Service
#Transactional("soireeentreamisTransactionManager")
public class UserServiceImpl implements UserService ...
My dao
#Repository
public class UserDaoImpl extends GenericDaoImpl<User, String> implements
UserDao {
#PersistenceContext(unitName = "soireeentreamisPU")
private EntityManager em;
public void persist(final User entity) {
em.persist(entity);
}
}
Can somebody help me please?

I find similar problem a while ago. In my case I needed to add line below to my dispacher-servlet.xml. So I need this in 2 places (applicationContex.xml and dispacher-servlet.xml)
<tx:annotation-driven />
And to clear something out, you didn't show your service methode that "store" object, but I believe that it's annotated with #Transactional - cause wihout this one you want create new transaction.

This happened to me recently. The problem is as you say a transactional problem, add the #Transactional annotation to all the methods that update the DB. Then add the CGLIB library to your calsspath or add it to your pom.xml if you are using Maven, this is necessary for spring make transactions. Even if I did it on a different way I hope it can help you. Here is my db.xml where I have all the data base related spring configuration.
<!-- Scans within the base package of the application for #Components to configure as beans -->
<context:property-placeholder location="classpath:db.properties"/>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="generateDdl" value="true" />
<property name="databasePlatform" value="${db.dialect}" />
</bean>
</property>
</bean>
<bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"
destroy-method="close">
<property name="driverClass" value="${db.driver}" />
<property name="jdbcUrl" value="${db.url}" />
<property name="username" value="${db.username}" />
<property name="password" value="${db.password}" />
<property name="idleConnectionTestPeriodInMinutes" value="1" />
<property name="idleMaxAgeInMinutes" value="4" />
<property name="maxConnectionsPerPartition" value="30" />
<property name="minConnectionsPerPartition" value="10" />
<property name="partitionCount" value="3" />
<property name="acquireIncrement" value="5" />
<property name="statementsCacheSize" value="100" />
<property name="releaseHelperThreads" value="3" />
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
<property name="jpaDialect" ref="jpaDialect"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean
class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
And here is my persistence.xml
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="pu-app" transaction-type="RESOURCE_LOCAL">
</persistence-unit>

You need to add the model object into the persistence.xml file. Right below the provider element add
<class>com.your.domain.object.User</class>

If TransactionProxyFactoryBean is used for service layer bean then is there any need of transaction annotation driven in dao?

The interface for service layer is :
EMS.java:
public interface EMS extends UserDetailsService {
public void saveUser(User user);
}
and its implementation:
EMSImpl.java:
#Service("emsImpl")
#Transactional(readOnly=true)
public class EMSImpl implements EMS {
private final Logger logger = LoggerFactory.getLogger(getClass());
#Autowired
#Qualifier("dao")
private EMSDao dao;
#Transactional(readOnly=false)
public void saveUser(User user) {
dao.saveUser();
}
}
The interface for dao:
EMSDao.java:
public interface EMSDao {
public void saveUser(User user);
}
And its implementation:
HibernateEMSDao.java
#Repository("EMSDao")
public class HibernateEMSDao extends HibernateDaoSupport implements EMSDao {
private final Logger logger = LoggerFactory.getLogger(getClass());
private SchemaHelper schemaHelper;
public void setSchemaHelper(SchemaHelper schemaHelper) {
this.schemaHelper = schemaHelper;
}
#Transactional(readOnly=false)
public synchronized void saveUser(final User user) {
Session session = getSessionFactory().getCurrentSession();
session.merge(user);
}
private void storeUser(User user) {
getHibernateTemplate().save(user);
}
public void createSchema() {
try {
getHibernateTemplate().find("from User user where user.id = 1");
} catch (Exception e) {
logger.warn("expected database schema does not exist, will create. Error is: " + e.getMessage());
schemaHelper.createSchema();
User admin = new User();
admin.setUsername("admin");
admin.setName("Admin");
admin.setEmail("admin");
admin.setPassword("21232f297a57a5a743894a0e4a801fc3");
admin.setRoles(new HashSet<Role>(Arrays.asList(new Role("admin", "ADMINISTRATOR"))));
logger.info("inserting default admin user into database");
storeUser(admin);
logger.info("schema creation complete");
return;
}
logger.info("database schema exists, normal startup");
}
}
The bean ems in appliactionContext.xml is created by TransactionProxyFactoryBean. Also I am using <tx:annotation-driven />
The complete applicationContext.xml is:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
<bean class="info.ems.config.EMSConfigurer"/>
<bean id="passwordEncoder" class="org.acegisecurity.providers.encoding.Md5PasswordEncoder"/>
<bean id="ems" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager" ref="transactionManager"/>
<property name="target">
<bean class="info.ems.EMSImpl" init-method="init">
<property name="dao" ref="dao"/>
<property name="passwordEncoder" ref="passwordEncoder"/>
<property name="localeList" value="${ems.locales}"/>
<property name="releaseVersion" value="${ems.version}"/>
<property name="releaseTimestamp" value="${ems.timestamp}"/>
<property name="emsHome" value="${ems.home}"/>
</bean>
</property>
<property name="transactionAttributes">
<props>
<prop key="store*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="remove*">PROPAGATION_REQUIRED</prop>
<prop key="bulkUpdate*">PROPAGATION_REQUIRED</prop>
<prop key="*">PROPAGATION_SUPPORTS,readOnly</prop>
</props>
</property>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="dataSource" class="info.ems.datasource.DataSourceFactory">
<property name="driverClassName" value="${database.driver}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="validationQuery" value="${database.validationQuery}"/>
<property name="dataSourceJndiName" value="${database.datasource.jndiname}"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation">
<value>/WEB-INF/hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.current_session_context_class">org.hibernate.context.ThreadLocalSessionContext</prop>
</props>
</property>
</bean>
<bean id="dao" class="info.ems.hibernate.HibernateEMSDao" init-method="createSchema">
<property name="hibernateTemplate">
<bean class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
</property>
<property name="schemaHelper">
<bean class="info.ems.hibernate.SchemaHelper">
<property name="driverClassName" value="${database.driver}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="hibernateDialect" value="${hibernate.dialect}"/>
<property name="dataSourceJndiName" value="${database.datasource.jndiname}"/>
</bean>
</property>
</bean>
</beans>
I want to know:
Is it the right configuration for handling database transaction by spring?
Is it needed to use TransactionProxyFactoryBean along with <tx:annotation-driven />?
Any information or web-link where I can get example will be very helpful.
Thanks and regards.
Edit: after getting suggestion from skaffman the modified appliactionContext.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
<bean class="info.ems.config.EMSConfigurer"/>
<bean id="passwordEncoder" class="org.acegisecurity.providers.encoding.Md5PasswordEncoder"/>
<bean id="ems" class="info.ems.EMSImpl" init-method="init">
<property name="dao" ref="dao"/>
<property name="passwordEncoder" ref="passwordEncoder"/>
<property name="localeList" value="${ems.locales}"/>
<property name="releaseVersion" value="${ems.version}"/>
<property name="releaseTimestamp" value="${ems.timestamp}"/>
<property name="emsHome" value="${ems.home}"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="dataSource" class="info.ems.datasource.DataSourceFactory">
<property name="driverClassName" value="${database.driver}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="validationQuery" value="${database.validationQuery}"/>
<property name="dataSourceJndiName" value="${database.datasource.jndiname}"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation">
<value>/WEB-INF/hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.current_session_context_class">org.hibernate.context.ThreadLocalSessionContext</prop>
</props>
</property>
</bean>
<bean id="dao" class="info.ems.hibernate.HibernateEMSDao" init-method="createSchema">
<property name="hibernateTemplate">
<bean class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
</property>
<property name="schemaHelper">
<bean class="info.ems.hibernate.SchemaHelper">
<property name="driverClassName" value="${database.driver}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="hibernateDialect" value="${hibernate.dialect}"/>
<property name="dataSourceJndiName" value="${database.datasource.jndiname}"/>
</bean>
</property>
</bean>
</beans>

Is it the right configuration for handling database transaction by spring?
It's perfectly valid, but it's confusing and duplicates work. This will probably generate two layers of transactional proxies, although I doubt that will behave any differently.
As you say, you probably don't want to use both TransactionProxyFactoryBean and <tx:annotation-driven /> at the same time.
Your TransactionProxyFactoryBean config is using externalised method name patterns to decide which methods get which transaction semantics. This is fine, although with current versions of Spring it's usually easier to use annotations instead of the transactionAttributes property on TransactionProxyFactoryBean.
Given your config, I suggest getting rid of the explicit TransactionProxyFactoryBean bean definition (<tx:annotation-driven /> will create its own one as required, behind the scenes). Replace that with the undecorated EMSImpl, and <tx:annotation-driven /> will generate the transaction proxy automatically.