No TransactionManagerLookup specified Exception

[Gopu Akraju]

When I am trying to commit, I get the following error.

 
exception
 
javax.servlet.ServletException: #{UserBean.populateAction}: javax.faces.el.EvaluationException: org.hibernate.HibernateException: No TransactionManagerLookup specified
javax.faces.webapp.FacesServlet.service(FacesServlet.java:209)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
 
root cause
 
javax.faces.FacesException: #{UserBean.populateAction}: javax.faces.el.EvaluationException: org.hibernate.HibernateException: No TransactionManagerLookup specified
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
javax.faces.component.UICommand.broadcast(UICommand.java:312)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
 
    

And my hbm file is as below:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping package="test.user.UserBean">
    <class name="test.user.UserBean" table="test" >        
        
        <id name="selectRun"  column="RunNum" unsaved-value="0" type="string">            
        </id>        
        <property name="controlLane" type="string" column="Control"></property>
        
       
    </class>
    
</hibernate-mapping>

May I know why I am getting this exception?
Thanks and Regards

[Gopu Akraju]

Can anyone tell me what the problem is?

javax.faces.el.EvaluationException: org.hibernate.HibernateException: No TransactionManagerLookup specified
My java class where it takes care of database connection is as follows:

import javax.naming.InitialContext;
import org.apache.log4j.Logger;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
 
public class InitSessionFactory {
    
    /**
     * Default constructor.
     */
    private InitSessionFactory() {
    }
    
   
    private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";
    
    /** The single instance of hibernate configuration */
    private static final Configuration cfg = new Configuration();
    
    /** The single instance of hibernate SessionFactory */
    private static org.hibernate.SessionFactory sessionFactory;
    
    /**
     * initialises the configuration if not yet done and returns the current
     * instance
     *
     * @return
     */
    public static SessionFactory getInstance() {
        if (sessionFactory == null)
            initSessionFactory();
        return sessionFactory;
    }
    
    /**
     * Returns the ThreadLocal Session instance. Lazy initialize the
     * <code>SessionFactory</code> if needed.
     *
     * @return Session
     * @throws HibernateException
     */
    public Session openSession() {
        return sessionFactory.getCurrentSession();
    }
    
    /**
     * The behaviour of this method depends on the session context you have
     * configured. This factory is intended to be used with a hibernate.cfg.xml
     * including the following property <property
     * name="current_session_context_class">thread</property> This would return
     * the current open session or if this does not exist, will create a new
     * session
     *
     * @return
     */
    public Session getCurrentSession() {
        return sessionFactory.getCurrentSession();
    }
    
    /**
     * initializes the sessionfactory in a safe way even if more than one thread
     * tries to build a sessionFactory
     */
    private static synchronized void initSessionFactory() {
               
        Logger log = Logger.getLogger(InitSessionFactory.class);
        if (sessionFactory == null) {
            
            
            try {
                cfg.configure(CONFIG_FILE_LOCATION);
                
                    sessionFactory = cfg.buildSessionFactory();
               // }
                
            } catch (Exception e) {
                System.err
                        .println("%%%% Error Creating HibernateSessionFactory %%%%");
                e.printStackTrace();
                throw new HibernateException(
                        "Could not initialize the Hibernate configuration");
            }
        }
    }
    
    public static void close(){
        if (sessionFactory != null)
            sessionFactory.close();
        sessionFactory = null;
        
    }
}

I am calling the database commit from one of the method

public String populateAction() throws SQLException, NamingException{
        
        Transaction tx = null;        
        
        
        System.out.println("The selected run is:"+this.testRun);
        System.out.println("The control lane:"+this.testLane);
        
        Session session = InitSessionFactory.getInstance().getCurrentSession();
        
        try {
            //tx = session.beginTransaction();
            session.save(this.selectRun);
            session.save(this.controlLane);
            //tx.commit();
            session.close();
            
        } catch (HibernateException e) {
            e.printStackTrace();
            if (tx != null && tx.isActive())
                tx.rollback();
        }
        
        
       return "page2" ;
    }
    

[ June 26, 2008: Message edited by: Gopu Akraju ]

[Fabio Falci Rodrigues]

openSession