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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2010 Oracle and/or its affiliates. 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_1_1.html
 * or packager/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 packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 *
 * Modifications:
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 * enclosed by brackets [] replaced by your own identifying information:
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
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 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 */

package com.sun.grizzly.cometd.bayeux;

import org.apache.tomcat.util.http.FastHttpDateFormat;
/**
 * Bayeux Unsubscribe implementation. 
 * See http://svn.xantus.org/shortbus/trunk/bayeux/protocol.txt for the technical
 * details.
 *
 * // unsubscription for same:
 * 
 * 	//-----------------
 * 	// CLIENT -> SERVER
 * 	//-----------------
 * 
 * 	[
 * 		{
 * 			"channel":		"/meta/unsubscribe",
 * 			"subscription":	"/some/other/channel",
 * 			// optional
 * 			"authToken":	"SOME_NONCE_PREVIOUSLY_PROVIDED_BY_SERVER"
 * 		}
 * 		// , ...
 * 	]
 * 
 * 	// and the server response:
 * 
 * 	//-----------------
 * 	// SERVER -> CLIENT
 * 	//-----------------
 * 
 * 	[
 * 		{
 * 			"channel":		"/meta/unsubscribe",
 * 			"subscription":	"/some/other/channel",
 * 			"successful":	true,
 * 			"clientId":		"SOME_UNIQUE_CLIENT_ID",
 * 			"error":		"",
 * 			// optional
 * 			"authToken":	"SOME_NONCE"
 * 		}
 * 		// , ...
 * 	]
 * 	
 * @author Jeanfrancois Arcand
 */
abstract public class Unsubscribe extends Subscribe {
    public static final String META_UNSUBSCRIBE = "/meta/unsubscribe";
    
    public Unsubscribe() {
        type = Verb.Type.UNSUBSCRIBE;
        metaChannel = META_UNSUBSCRIBE;
    }
}