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What this is

This file is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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The source code

 * Copyright 2001-2004 The Apache Software Foundation
 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
import java.util.EventListener;

 * There exists a large class of IETF protocols that work by sending an
 * ASCII text command and arguments to a server, and then receiving an
 * ASCII text reply.  For debugging and other purposes, it is extremely
 * useful to log or keep track of the contents of the protocol messages.
 * The ProtocolCommandListener interface coupled with the
 *  ProtocolCommandEvent
 *  class facilitate this process.

* To receive ProtocolCommandEvents, you merely implement the * ProtocolCommandListener interface and register the class as a listener * with a ProtocolCommandEvent source such as * FTPClient . *


* @see ProtocolCommandEvent * @see ProtocolCommandSupport * @author Daniel F. Savarese ***/ public interface ProtocolCommandListener extends EventListener { /*** * This method is invoked by a ProtocolCommandEvent source after * sending a protocol command to a server. *

* @param event The ProtocolCommandEvent fired. ***/ public void protocolCommandSent(ProtocolCommandEvent event); /*** * This method is invoked by a ProtocolCommandEvent source after * receiving a reply from a server. *

* @param event The ProtocolCommandEvent fired. ***/ public void protocolReplyReceived(ProtocolCommandEvent event); }

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