MapDiff


1   /*******************************************************************************
2    * Copyright (c) 2006, 2007 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  
12  package org.eclipse.core.databinding.observable.map;
13  
14  import java.util.Set  ;
15  
16  /**
17   * @since 1.1
18   * 
19   */
20  public abstract class MapDiff {
21  
22      /**
23       * @return the set of keys which were added
24       */
25      public abstract Set   getAddedKeys();
26  
27      /**
28       * @return the set of keys which were removed
29       */
30      public abstract Set   getRemovedKeys();
31  
32      /**
33       * @return the set of keys for which the value has changed
34       */
35      public abstract Set   getChangedKeys();
36  
37      /**
38       * Returns the old value for the given key, which must be an element of
39       * {@link #getRemovedKeys()} or {@link #getChangedKeys()}.
40       * 
41       * @param key
42       * @return the old value for the given key.
43       */
44      public abstract Object   getOldValue(Object   key);
45  
46      /**
47       * Returns the new value for the given key, which must be an element of
48       * {@link #getChangedKeys()} or {@link #getAddedKeys()}.
49       * 
50       * @param key
51       * @return the new value for the given key.
52       */
53      public abstract Object   getNewValue(Object   key);
54  }
55

A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame

Popular Tags