Hibernate optimistic-lock="true" not working

[Pramod Shivale]

I have made optimistic-lock="dirty" dynamic-update="true" for the entity in mapping file.

And the code to test this is:

 
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package hibernatenewappl;
 
import java.util.HashMap;
import java.util.Map;
import org.apache.log4j.Logger;
import org.hibernate.EntityMode;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
 
/**
 *
 *
 */
public class Main {
 
    static Logger logger = Logger.getLogger(Main.class);
    
    static SessionFactory sessionFactory = new Configuration().configure("hibernatenewappl/hibernate.pos.cfg.xml").buildSessionFactory();
    
    public static void main(String[] args) throws Exception {
 
        Session session = sessionFactory.openSession();
       Transaction tx = session.beginTransaction ();
         
        Kit entityInstance = (Kit)session.load (Kit.class, new Long(300));
        System.out.println("name--"+entityInstance.getKitName());
        changeSameEntity();        
        System.out.println("name--"+entityInstance.getKitName());
        entityInstance.setKitName("B");
        session.update(entityInstance);
        tx.commit();
        session.close();
        System.out.println("Main Finished");
    }
    
    public static void changeSameEntity(){
     Session session = sessionFactory.openSession();
        Transaction tx = session.beginTransaction ();
         Kit entityInstance1 = (Kit)session.load (Kit.class, new Long(300));
         
        System.out.println("name--"+entityInstance1.getKitName());
        entityInstance1.setKitName("M");
        session.update(entityInstance1);
        tx.commit ();
        session.close();
        System.out.println("change Finished");
    }
    
    
}

I am excepting StaleObjectStateException but this code runs without any exception.
please provide some suggestions or code to test this.
[ November 25, 2008: Message edited by: Paul Sturrock ]

[Pramod Shivale]

same probelm with optimistic-lock="all"

[Paul Sturrock]

I am excepting StaleObjectStateException but this code runs without any exception.

Why are you expecting this? All your code runs in one transaction (though you do nest another in there), so I wouldn't expect any updates to be made to the database (and hence, no version checking) until the second tx.commit().

Try testing it with two clients, ratehr than one client doing two operations.