Merge Hibernte Listener

package com.nmmc.common.utils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;
import org.hibernate.event.MergeEvent;
import org.hibernate.event.def.DefaultMergeEventListener;

/**
 * Audit Log Listener is used to log insert, update, Complete list of
 * listeners/events.
 *
 * @see org.hibernate.event.EventListeners
 * @author Mars Telecom Systems
 */
public final class MergeHibernateListener extends DefaultMergeEventListener
{
    private static final long serialVersionUID = 1L;

    private static Log log = LogFactory.getLog(MergeHibernateListener.class);

    public void onMerge(MergeEvent event) throws HibernateException
    {
    try
    {
        Object object = event.getOriginal();
        if (object != null)
        {
        String strPackageName = object.getClass().getPackage().getName();
        if (strPackageName.startsWith("com.nmmc") && (strPackageName.endsWith("model") || strPackageName.endsWith("search") || strPackageName.endsWith(".dwr")))
        {
            event.setEntity(object);
        }
        }
    } catch (Exception e)
    {
        System.out.println(e.getMessage());
        log.error("Unable to process audit log for Merge operation", e);
    }
    super.onMerge(event);
    }

}