View Javadoc
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.spi;
19  
20  
21  /**
22   * Interface used to listen for LoggerRepository related
23   * events such as startup, reset, and shutdown.  Clients register
24   * an instance of the interface and the instance is called back
25   * when the various events occur.
26   * <p>
27   * LoggerRepository provides methods for adding and removing
28   * LoggerRepositoryEventListener instances.
29   *
30   * @author Ceki G&uuml;lc&uuml;
31   * @author Mark Womack
32   */
33  public interface LoggerRepositoryEventListener {
34      /**
35       * Called when the repository configuration is reset.
36       *
37       * @param repository repository
38       */
39      void configurationResetEvent(LoggerRepository repository);
40  
41      /**
42       * Called when the repository configuration is changed.
43       *
44       * @param repository repository
45       */
46      void configurationChangedEvent(LoggerRepository repository);
47  
48      /**
49       * Called when the repository is shutdown. When this method is
50       * invoked, the repository is still valid (ie it has not been
51       * shutdown, but will be after this method returns).
52       *
53       * @param repository repository.
54       */
55      void shutdownEvent(LoggerRepository repository);
56  }