CollectionAddObjectOnDropAction


1   /*====================================================================
2   
3   Objectweb Browser Framework
4   Copyright (C) 2000-2003 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  
27  package org.objectweb.util.browser.plugin.java;
28  
29  import java.util.Collection  ;
30  
31  import org.objectweb.util.browser.api.DropAction;
32  import org.objectweb.util.browser.api.DropTreeView;
33  
34  /**
35   * This action adds an element into a <code>java.util.Collection</code> 
36   * object using the Drag&Drop mechanism. 
37   *
38   * @author <a HREF="mailto:Philippe.Merle@lifl.fr">Philippe Merle</a>,
39   *         <a HREF="mailto:Jerome.Moroy@lifl.fr">J�r�me Moroy</a>
40   * 
41   * @version 0.1
42   */
43  public class CollectionAddObjectOnDropAction 
44      implements DropAction {
45  
46      //==================================================================
47      //
48      // No internal state.
49      //
50      //==================================================================
51  
52      //==================================================================
53      //
54      // No constructor.
55      // 
56      //==================================================================
57  
58      //==================================================================
59      //
60      // No internal method.
61      //
62      //==================================================================
63  
64      //==================================================================
65      //
66      // Public methods for DropAction interface.
67      //
68      //==================================================================
69  
70      /**
71       * Executes the action.
72       * 
73       * @param dropTreeView The current view on the tree.
74       *   
75       * @exception Exception The invocation may thrown every kind of exception.
76       */
77      public void 
78      execute(DropTreeView dropTreeView) 
79      throws Exception  {
80          Collection   collection = (Collection  )dropTreeView.getSelectedObject();
81          Object   objectToAdd = dropTreeView.getDragSourceObject();
82          collection.add(objectToAdd);    
83      }
84          
85  }
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