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POJSF2 ViewScope/Spring/Hibernate getSessionFactory NULL Error
 

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  1. POJSF2 ViewScope/Spring/Hibernate getSessionFactory NULL Error
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    <p>We are using spring + hibernate + jsf + mysql + atomikos in our project. Here below the version details:</p> <ul> <li>Spring: 3.0.5</li> <li>Hibernate : 3.6.0</li> <li>JSF : 2.0 (myfaces 2.0.12)</li> <li>Mysql: 5.1.38 (InnoDB table structure)</li> <li>Atomikos: 3.8.0</li> <li>Tomcat: 6.0.20</li> </ul> <p>When I use JSF2 ViewScope bean to use transactional service in service layer, it works fine for the first request. It rollsback when there is a problem, and saves the two entities into different table when there is no problem. However, if I do the second request on the same view, then I get null object if I call <code>getSessionFactory()</code> in my DAO. </p> <p>Any help on this?</p> <p>Here below are my settings etc:</p> <pre><code>@ManagedBean @ViewScoped public class TestPageBean { public String click(){ testService.saveTest(obj1, obj2); } } @Transactional public class TestService { @Transactional(readOnly = false, propagation = Propagation.REQUIRED) public void saveTest(Object1 obj1, Object2 obj2) { dao1.save(obj1); dao2.save(obj2); } } </code></pre> <p>GenericDao includes save method:</p> <pre><code>public void save(Entity entity){ Session session = getSessionFactory().getCurrentSession().save(entity); } </code></pre> <p>Here is xml configuration of Spring:</p> <pre><code>&lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"&gt; &lt;property name="dataSource"&gt; &lt;ref bean="atomikosDataSourceBean" /&gt; &lt;/property&gt; &lt;property name="packagesToScan"&gt; &lt;list&gt; &lt;value&gt;com.company.txtest.entity&lt;/value&gt; &lt;/list&gt; &lt;/property&gt; &lt;property name="hibernateProperties"&gt; &lt;props&gt; &lt;prop key="hibernate.hbm2ddl.auto"&gt;update&lt;/prop&gt; &lt;prop key="hibernate.dialect"&gt;org.hibernate.dialect.MySQLDialect&lt;/prop&gt; &lt;prop key="hibernate.connection.characterEncoding"&gt;utf8&lt;/prop&gt; &lt;prop key="hibernate.transaction.factory_class"&gt;com.atomikos.icatch.jta.hibernate3.AtomikosJTATransactionFactory&lt;/prop&gt; &lt;prop key="hibernate.transaction.manager_lookup_class"&gt;com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup&lt;/prop&gt; &lt;prop key="hibernate.current_session_context_class"&gt;jta&lt;/prop&gt; &lt;prop key="hibernate.connection.release_mode"&gt;auto&lt;/prop&gt; &lt;/props&gt; &lt;/property&gt; &lt;/bean&gt; &lt;bean id="atomikosDataSourceBean" class="com.atomikos.jdbc.nonxa.AtomikosNonXADataSourceBean" init-method="init" destroy-method="close"&gt; &lt;property name="uniqueResourceName"&gt;&lt;value&gt;NonXADBMS&lt;/value&gt;&lt;/property&gt; &lt;property name="driverClassName"&gt;&lt;value&gt;com.mysql.jdbc.Driver&lt;/value&gt;&lt;/property&gt; &lt;property name="url"&gt;&lt;value&gt;jdbc:mysql://localhost:3306/txtestdb?autoReconnect=true&lt;/value&gt;&lt;/property&gt; &lt;property name="user"&gt;&lt;value&gt;username&lt;/value&gt;&lt;/property&gt; &lt;property name="password"&gt;&lt;value&gt;password&lt;/value&gt;&lt;/property&gt; &lt;property name="minPoolSize"&gt;&lt;value&gt;1&lt;/value&gt;&lt;/property&gt; &lt;/bean&gt; &lt;!-- Construct Atomikos UserTransactionManager, needed to configure Spring --&gt; &lt;bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager" init-method="init" destroy-method="close"&gt; &lt;!-- when close is called, should we force transactions to terminate or not? --&gt; &lt;property name="forceShutdown"&gt;&lt;value&gt;true&lt;/value&gt;&lt;/property&gt; &lt;/bean&gt; &lt;!-- Also use Atomikos UserTransactionImp, needed to configure Spring --&gt; &lt;bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp"&gt; &lt;property name="transactionTimeout"&gt;&lt;value&gt;300&lt;/value&gt;&lt;/property&gt; &lt;/bean&gt; &lt;tx:annotation-driven/&gt; &lt;!-- Configure the Spring framework to use JTA transactions from Atomikos --&gt; &lt;bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"&gt; &lt;property name="transactionManager"&gt;&lt;ref bean="atomikosTransactionManager" /&gt;&lt;/property&gt; &lt;property name="userTransaction"&gt;&lt;ref bean="atomikosUserTransaction" /&gt;&lt;/property&gt; &lt;/bean&gt; &lt;bean id="genericDaoHibernate" class="com.company.txtest.dao.hibernate.GenericDaoHibernate"&gt; &lt;property name="sessionFactory"&gt; &lt;ref bean="sessionFactory" /&gt; &lt;/property&gt; &lt;/bean&gt; </code></pre>
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    1. UShuzeyfe
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    1. COI think `getSessionFactory().getCurrentSession().save(entity);` returns null if you currently do not have a session.
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      1. USRussell Gutierrez
    2. COYep, that is exactly my problem. So how can I have a session ?
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      1. UShuzeyfe
 

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