package roseindia.tutorial.hibernate;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;


/**
* @author Deepak Kumar
*
* http://www.roseindia.net
* Hibernate example to inset data into Contact table
*/
public class FirstExample {

   private static SessionFactory sessionFactory;
   private static ServiceRegistry serviceRegistry;
   
   private static SessionFactory configureSessionFactory() throws HibernateException {
       Configuration configuration = new Configuration();
       configuration.configure();
       serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();       
       sessionFactory = configuration.buildSessionFactory(serviceRegistry);
       return sessionFactory;
   }
   
   /**
    *
    * @param args
    */
   public static void main(String[] args) {
   
      Session session = null;

      try{
         
         // This step will read hibernate.cfg.xml and prepare hibernate for use
         SessionFactory sessionFactory = configureSessionFactory();
         session =  sessionFactory.openSession();
         
         //Create new instance of Contact and set values in it by reading them from form object
         System.out.println("Inserting Record");
         
         Contact contact = new Contact();
         contact.setId(3);
         contact.setFirstName("Deepak");
         contact.setLastName("Kumar");
         contact.setEmail("deepak_38@yahoo.com");
         session.save(contact);
         
         System.out.println("Done");
      }
      catch(Exception e) {
         System.out.println(e.getMessage());
      }
      finally {
         // Actual contact insertion will happen at this step
         session.flush();
         session.close();

      }

   }
}

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
<session-factory>
  <property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver</property>
  <property name="hibernate.connection.url">
jdbc:mysql://localhost/hibernatetutorial</property>
  <property name="hibernate.connection.username">root</property>
  <property name="hibernate.connection.password"></property>
  <property name="hibernate.connection.pool_size">10</property>
  <property name="show_sql">true</property>
  <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
  <property name="hibernate.hbm2ddl.auto">update</property>
  <!-- Mapping files -->
  <mapping resource="contact.hbm.xml"/>
</session-factory>
</hibernate-configuration>

  <class-cache
      class="roseindia.tutorial.hibernate.Contact"
      usage="read-only"
  />

  <event type="load">
     <listener class="org.hibernate.event.def.DefaultLoadEventListener"/>
  </event>
 
  <!-- Register the listeners -->
  <listener type="post-update" class="org.hibernate.event.def.DefaultLoadEventListener"/>