java code for Dao Load

import java.util.*;

import org.hibernate.*;
import org.hibernate.criterion.*;

public class Main {


public static void main(String[] args) {
HibernateUtil.setup("create table EVENTS ( uid int, name VARCHAR, start_Date date, duration int);");

// hibernate code start


SimpleEventDao eventDao = new SimpleEventDao();
Event event = new Event();
event.setName("Create an Event");

eventDao.create(event);

Event foundEvent = eventDao.find(/*event.getId()*/1L);

System.out.println(foundEvent.getName());


HibernateUtil.checkData("select uid, name from events");
// hibernate code end
}

}



/////////////////////////////////////////////////////////////////////////

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.Query;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.List;

public class SimpleEventDao {
Log log = LogFactory.getLog(SimpleEventDao.class);
private Session session;
private Transaction tx;

public SimpleEventDao() {
HibernateFactory.buildIfNeeded();
}

/**
* Insert a new Event into the database.
* @param event
*/
public void create(Event event) throws DataAccessLayerException {
try {
startOperation();
session.save(event);
tx.commit();
} catch (HibernateException e) {
handleException(e);
} finally {
HibernateFactory.close(session);
}
}


/**
* Delete a detached Event from the database.
* @param event
*/
public void delete(Event event) throws DataAccessLayerException {
try {
startOperation();
session.delete(event);
tx.commit();
} catch (HibernateException e) {
handleException(e);
} finally {
HibernateFactory.close(session);
}
}
/**
* Find an Event by its primary key.
* @param id
* @return
*/
public Event find(Long id) throws DataAccessLayerException {
Event event = null;
try {
startOperation();
event = (Event) session.load(Event.class, id);
tx.commit();
} catch (HibernateException e) {
handleException(e);
} finally {
HibernateFactory.close(session);
}
return event;
}

/**
* Updates the state of a detached Event.
*
* @param event
*/
public void update(Event event) throws