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Java > Open Source Codes > org > objectweb > util > explorer > plugin > java > map > MapRemoveEntryAction


1 /*====================================================================
2
3 Objectweb Explorer Framework
4 Copyright (C) 2000-2005 INRIA - USTL - LIFL - GOAL
5 Contact: openccm@objectweb.org
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with this library; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA
21
22 Initial developer(s): Philippe Merle, Jerome Moroy.
23 Contributor(s): ______________________________________.
24
25 ====================================================================
26 $Id: MapRemoveEntryAction.java,v 1.2 2005/07/05 09:23:38 moroy Exp $
27 ====================================================================*/
28
29 package org.objectweb.util.explorer.plugin.java.map;
30 import java.util.Map JavaDoc;
31
32 import org.objectweb.util.explorer.api.MenuItem;
33 import org.objectweb.util.explorer.api.MenuItemTreeView;
34 import org.objectweb.util.explorer.api.TreeView;
35
36 /**
37  * This action removes an entry from a <code>java.util.Map</code> object.
38  *
39  * @author <a HREF="mailto:Philippe.Merle@lifl.fr">Philippe Merle</a>,
40  * <a HREF="mailto:Jerome.Moroy@lifl.fr">Jérôme Moroy</a>
41  *
42  * @version 0.1
43  */
44 public class MapRemoveEntryAction
45   implements MenuItem
46 {
47
48     //==================================================================
49 //
50 // No internal state.
51 //
52 //==================================================================
53
54     //==================================================================
55 //
56 // No constructor.
57 //
58 //==================================================================
59
60     //==================================================================
61 //
62 // No internal method.
63 //
64 //==================================================================
65
66     //==================================================================
67 //
68 // Public methods for MenuItem.
69 //
70 //==================================================================
71
72     /**
73      * Returns enabled status.
74      */
75     public int getStatus(TreeView treeView)
76     {
77         return MenuItem.ENABLED_STATUS;
78     }
79
80     /**
81      * Removes the mapping for this key from this map.
82      */
83     public void actionPerformed(MenuItemTreeView treeView)
84     throws Exception JavaDoc
85     {
86         // Obtains the selected map.
87 Map JavaDoc map = (Map JavaDoc)treeView.getParentObject();
88         
89         // Obtains the entry to remove.
90 Object JavaDoc objectToRemove = treeView.getSelectedEntry().getName();
91         
92         // Removes the entry.
93 map.remove(objectToRemove);
94     }
95         
96 }
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