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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  /*
    19   */
    20  package org.apache.log4j.plugins;
    21
    22  import java.util.EventListener;
    23
    24
    25  /**
    26   * PluginListeners are notified when plugins are started or stopped
    27   * by the PluginRegistry.
    28   *
    29   * @author Paul Smith (psmith@apache.org)
    30   */
    31  public interface PluginListener extends EventListener {
    32      /**
    33       * Notification that plugin has started.
    34       * @param e event
    35       */
    36    void pluginStarted(PluginEvent e);
    37
    38      /**
    39       * Notification that plugin has stopped.
    40       * @param e event
    41       */
    42    void pluginStopped(PluginEvent e);
    43  }