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Java > Open Source Codes > org > objectweb > openccm > explorer > menu > TreeDialogSingleton


1 /*====================================================================
2
3 OpenCCM: The Open CORBA Component Model Platform
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): Jerome Moroy.
23 Contributor(s): ______________________________________.
24
25 ====================================================================*/
26 package org.objectweb.openccm.explorer.menu;
27
28 import org.objectweb.fractal.api.Component;
29 import org.objectweb.fractal.api.NoSuchInterfaceException;
30 import org.objectweb.openccm.explorer.CORBA.ConsoleFactory;
31 import org.objectweb.util.explorer.api.Tree;
32 import org.objectweb.util.explorer.swing.api.Explorer;
33
34 /**
35  * This class provides a DynamicTree.
36  *
37  * @author <a HREF="mailto:Jerome.Moroy@lifl.fr">Jerome Moroy</a>
38  *
39  * @version 0.1
40  */
41 public class TreeDialogSingleton {
42
43     protected static Component tree_ = null;
44
45     protected static Tree treeItf_ = null;
46     
47     protected static Explorer explorerItf_ = null;
48     
49     /**
50      * Provides an instance of a DynamicTree.
51      * @return A DynamicTree instance.
52      */
53     public static Component getInstance() {
54         if (treeItf_ != null) {
55             treeItf_.refreshAll();
56         }
57         return tree_;
58     }
59
60     /**
61      * Provides the Explorer interface of the current Tree component.
62      * @return The explorer interface to use.
63      */
64     public static Explorer getExplorerInterface(){
65         if (treeItf_ != null) {
66             treeItf_.refreshAll();
67         }
68         return explorerItf_;
69     }
70     
71     /**
72      * Provides the Tree interface of the current Tree component.
73      * @return The tree interface to use.
74      */
75     public static Tree getTreeInterface(){
76         if (treeItf_ != null) {
77             treeItf_.refreshAll();
78         }
79         return treeItf_;
80     }
81         
82     /**
83      * Fixes the Component instance.
84      * @param instance The instance to use.
85      */
86     public static void setInstance(Component instance) {
87         tree_ = instance;
88         if(tree_!=null){
89             try {
90                 treeItf_ = (Tree)tree_.getFcInterface(Tree.TREE);
91                 explorerItf_ = (Explorer)tree_.getFcInterface(Explorer.EXPLORER);
92             } catch (NoSuchInterfaceException e) {
93                 ConsoleFactory.getDebugConsole().add(e.getMessage());
94             }
95         }
96     }
97
98 }
99
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