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/*
 * Copyright (c) 2009, Paul Merlin. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package org.codeartisans.java.sos.messagebus;

/**
 * Protected contract (abstract class with no responsibility) of Message instances.
 * 
 * @param  MessageType's Subscriber mark
 */
public abstract class Message
{

    /**
     * @return MessageType
     */
    protected abstract MessageType getMessageType();

    /**
     * @param subscriber Subscriber
     */
    protected abstract void deliver( S subscriber );

}