/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

/*
 * Copyright 2004-2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
 
/*
 */

package com.sun.enterprise.management.support;

import java.io.IOException;

import javax.management.ObjectName;
import javax.management.MBeanServer;
import javax.management.MBeanServerConnection;
import javax.management.MBeanInfo;
import javax.management.MBeanAttributeInfo;
import javax.management.AttributeList;
import javax.management.Attribute;
import javax.management.AttributeNotFoundException;
import javax.management.InvalidAttributeValueException;
import javax.management.InstanceNotFoundException;
import javax.management.IntrospectionException;
import javax.management.ReflectionException;

/**
	Delegate which delegates to another MBean.
	This is a dummy delegate which is used when the
	remote server instance is yet to be started.
		
 */
public class DummyDelegate extends DelegateBase
{

		private
	DummyDelegate()
	{
	    super( DummyDelegate.class.getName(), null);
	}
    
		public synchronized DummyDelegate
	getInstance()
	{
		if ( INSTANCE == null )
		{
			INSTANCE = new DummyDelegate();
		}
		return( INSTANCE );
	}

	static public DummyDelegate INSTANCE = null;
	
		public Object
	getAttribute( final String attrName )
		throws AttributeNotFoundException
	{
		return null;
	}
	
		public void
	setAttribute( final Attribute attr )
		throws AttributeNotFoundException, InvalidAttributeValueException
	{
		throw new AttributeNotFoundException("no attributes defined for dummy delegate");
	}
	
		public MBeanInfo
	getMBeanInfo()
	{
		return null;
	}


	/**
	 */
		public final Object
	invoke(
		String 		operationName,
		Object[]	args,
		String[]	types )
	{
		return null;
	}
}