Hibernate example source code file (NamingHelper.java)

This example Hibernate source code file (NamingHelper.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

an, ejb3configuration, jndi, jndiserviceimpl, jndiserviceimpl, listener, log, namespacechangelistener, namespacechangelistener, naminghelper, naminghelper, no, string, string

The Hibernate NamingHelper.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.ejb.util;

import javax.naming.event.NamespaceChangeListener;
import javax.naming.event.NamingEvent;
import javax.naming.event.NamingExceptionEvent;

import org.jboss.logging.Logger;

import org.hibernate.ejb.AvailableSettings;
import org.hibernate.ejb.Ejb3Configuration;
import org.hibernate.ejb.internal.EntityManagerMessageLogger;
import org.hibernate.service.jndi.JndiException;
import org.hibernate.service.jndi.JndiNameException;
import org.hibernate.service.jndi.internal.JndiServiceImpl;

/**
 * @author Emmanuel Bernard
 */
public class NamingHelper {
	private NamingHelper() {}

    private static final EntityManagerMessageLogger LOG = Logger.getMessageLogger(EntityManagerMessageLogger.class, NamingHelper.class.getName());

	public static void bind(Ejb3Configuration cfg) {
		String name = cfg.getHibernateConfiguration().getProperty( AvailableSettings.CONFIGURATION_JNDI_NAME );
        if ( name == null ) {
			LOG.debug( "No JNDI name configured for binding Ejb3Configuration" );
		}
		else {
            LOG.ejb3ConfigurationName( name );

			// todo : instantiating the JndiService here is temporary until HHH-6159 is resolved.
			JndiServiceImpl jndiService = new JndiServiceImpl( cfg.getProperties() );
			try {
				jndiService.bind( name, cfg );
				LOG.boundEjb3ConfigurationToJndiName( name );
				try {
					jndiService.addListener( name, LISTENER );
				}
				catch (Exception e) {
					LOG.couldNotBindJndiListener();
				}
			}
			catch (JndiNameException e) {
				LOG.invalidJndiName( name, e );
			}
			catch (JndiException e) {
				LOG.unableToBindEjb3ConfigurationToJndi( e );
			}
		}
	}

	private static final NamespaceChangeListener LISTENER = new NamespaceChangeListener() {
		public void objectAdded(NamingEvent evt) {
            LOG.debugf("An Ejb3Configuration was successfully bound to name: %s", evt.getNewBinding().getName());
		}

		public void objectRemoved(NamingEvent evt) {
			String name = evt.getOldBinding().getName();
            LOG.ejb3ConfigurationUnboundFromName(name);
		}

		public void objectRenamed(NamingEvent evt) {
			String name = evt.getOldBinding().getName();
            LOG.ejb3ConfigurationRenamedFromName(name);
		}

		public void namingExceptionThrown(NamingExceptionEvent evt) {
            LOG.unableToAccessEjb3Configuration(evt.getException());
		}
	};


}