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Classes common for multiple Ant Media projects

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/*
 * RED5 Open Source Media Server - https://github.com/Red5/
 * 
 * Copyright 2006-2016 by respective authors (see below). 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.red5.server.api.event;

/**
 * IEvent interfaces is the essential interface every Event should implement
 */
public interface IEvent {

    /**
     * Returns even type
     * 
     * @return Event type enumeration
     */
    public Type getType();

    /**
     * Returns event context object
     * 
     * @return Event context object
     */
    public Object getObject();

    /**
     * Whether event has source (event listener(s))
     * 
     * @return      * true
     * 
     * 
     *         if so,
     * 
     *              * false
     * 
     * 
     *         otherwise
     */
    public boolean hasSource();

    /**
     * Returns event listener
     * 
     * @return Event listener object
     */
    public IEventListener getSource();

    enum Type {
        SYSTEM, STATUS, SERVICE_CALL, SHARED_OBJECT, STREAM_ACTION, STREAM_CONTROL, STREAM_DATA, CLIENT, CLIENT_INVOKE, CLIENT_NOTIFY, SERVER
    }

}