ioservicelistener.java

mina是以Java实现的一个开源的网络程序框架

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 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.mina.core.service;

import java.util.EventListener;

import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;

/**
 * Listens to events related to an {@link IoService}.
 *
 * @author The Apache MINA Project ([e-mail])
 * @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (Thu, 26 Jun 2008) $
 */
public interface IoServiceListener extends EventListener {
    /**
     * Invoked when a new service is activated by an {@link IoService}.
     *
     * @param service the {@link IoService}
     */
    void serviceActivated(IoService service) throws Exception;
    
    /**
     * Invoked when a service is idle.
     */
    void serviceIdle(IoService service, IdleStatus idleStatus) throws Exception;

    /**
     * Invoked when a service is deactivated by an {@link IoService}.
     *
     * @param service the {@link IoService}
     */
    void serviceDeactivated(IoService service) throws Exception;

    /**
     * Invoked when a new session is created by an {@link IoService}.
     *
     * @param session the new session
     */
    void sessionCreated(IoSession session) throws Exception;

    /**
     * Invoked when a session is being destroyed by an {@link IoService}.
     *
     * @param session the session to be destroyed
     */
    void sessionDestroyed(IoSession session) throws Exception;
}