| /* |
| * 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.commons.net; |
| 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 |
| * {@link ProtocolCommandEvent} class facilitate this process. |
| * <p> |
| * To receive ProtocolCommandEvents, you merely implement the |
| * ProtocolCommandListener interface and register the class as a listener |
| * with a ProtocolCommandEvent source such as |
| * {@link org.apache.commons.net.ftp.FTPClient}. |
| * |
| * |
| * @see ProtocolCommandEvent |
| * @see ProtocolCommandSupport |
| ***/ |
| |
| 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); |
| |
| } |