DirectoryChangeListener


1   /*
2    * Copyright (C) The Loom Group. All rights reserved.
3    *
4    * This software is published under the terms of the Loom
5    * Software License version 1.1, a copy of which has been included
6    * with this distribution in the LICENSE.txt file.
7    */
8   package org.codehaus.loom.components.util.monitor;
9   
10  import java.util.Set  ;
11  
12  /**
13   * Interface implemented by classes that want to recieve
14   * notifications about changes of a directory's content.
15   *
16   * @author Johan Sjoberg
17   * @version $Revision: 1.2 $
18   */
19  public interface DirectoryChangeListener
20  {
21      /** Addition of files */
22      public static final int ADDITION = 1;
23  
24      /** Removal of files */
25      public static final int REMOVAL = 2;
26  
27      /** Modification of files */
28      public static final int MODIFICATION = 3;
29  
30      /**
31       * Indication that some file or files have been changed.
32       *
33       * @param type Type of change to the directory
34       * @param fileSet a Set of files
35       */
36      public void directoryChange( int type, Set   fileSet );
37  
38      /**
39       * Indication that the scanner was unable to view the contents of the directory
40       */
41      void unableToListContents();
42  }

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