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1   package org.codehaus.plexus.component.configurator;
2   
3   /*
4    * The MIT License
5    *
6    * Copyright (c) 2004-5, The Codehaus
7    *
8    * Permission is hereby granted, free of charge, to any person obtaining a copy of
9    * this software and associated documentation files (the "Software"), to deal in
10   * the Software without restriction, including without limitation the rights to
11   * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12   * of the Software, and to permit persons to whom the Software is furnished to do
13   * so, subject to the following conditions:
14   *
15   * The above copyright notice and this permission notice shall be included in all
16   * copies or substantial portions of the Software.
17   *
18   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24   * SOFTWARE.
25   */
26  
27  
28  /**
29   * Listen for configuration changes on an object.
30   *
31   * @author <a href="mailto:brett@apache.org">Brett Porter</a>
32   * @version $Id$
33   */
34  public interface ConfigurationListener
35  {
36      /**
37       * Notify the listener that a field has been set using its setter.
38       * @param fieldName the field
39       * @param value the value set
40       * @param target the target object
41       */
42      void notifyFieldChangeUsingSetter( String fieldName, Object value, Object target );
43  
44      /**
45       * Notify the listener that a field has been set using private field injection.
46       * @param fieldName the field
47       * @param value the value set
48       * @param target the target object
49       */
50      void notifyFieldChangeUsingReflection( String fieldName, Object value, Object target );
51  }