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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17
    18  package org.apache.log4j.net;
    19
    20  import java.util.EventListener;
    21
    22  /**
    23   * Interface used to listen for {@link SocketNode} related
    24   * events. Clients register an instance of the interface and the
    25   * instance is called back when the various events occur.
    26   *
    27   * @author Mark Womack
    28   * @author Paul Smith (psmith@apache.org)
    29   */
    30  public interface SocketNodeEventListener extends EventListener {
    31
    32      /**
    33       * Called when the SocketNode is created and begins awaiting data.
    34       *
    35       * @param remoteInfo remote info
    36       */
    37      void socketOpened(String remoteInfo);
    38
    39      /**
    40       * Called when the socket the node was given has been closed.
    41       *
    42       * @param e exception
    43       */
    44      void socketClosedEvent(Exception e);
    45  }