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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.chainsaw;
19  
20  import java.util.EventListener;
21  
22  
23  /**
24   * Implementations are notified when new Logger names
25   * are added to the related LoggerNameModel instance.
26   *
27   * @author Paul Smith <psmith@apache.org>
28   */
29  public interface LoggerNameListener extends EventListener {
30      /**
31       * Called by LoggerNameModel instances when a new unique
32       * Logger name string has been introduced into the model
33       *
34       * @param loggerName the new, unique loggerName
35       */
36      void loggerNameAdded(String loggerName);
37  
38      /**
39       * Logger names were reset (used to clear the tree model)
40       */
41      void reset();
42  }