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Java > Open Source Codes > org > objectweb > util > browser > core > common > DefaultRootFactory


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.core.common;
28
29 import org.objectweb.util.browser.api.Context;
30 import org.objectweb.util.browser.api.Entry;
31 import org.objectweb.util.browser.core.api.RootFactory;
32
33 /**
34  * Basic implementation of RootFactory interface.
35  *
36  * @author <a HREF="mailto:Philippe.Merle@lifl.fr">Philippe Merle</a>,
37  * <a HREF="mailto:Jerome.Moroy@lifl.fr">Jérôme Moroy</a>
38  *
39  * @version 0.1
40  */
41 public class DefaultRootFactory
42   implements RootFactory
43 {
44
45     //==================================================================
46 //
47 // Internal states.
48 //
49 //==================================================================
50
51     /** The class to instantiate */
52     protected Class JavaDoc class_ = null;
53
54     //==================================================================
55 //
56 // No constructor.
57 //
58 //==================================================================
59
60     //==================================================================
61 //
62 // No internal method.
63 //
64 //==================================================================
65
66     //==================================================================
67 //
68 // Public methods.
69 //
70 //==================================================================
71
72
73     /**
74      * Provides the root context.
75      *
76      * @return The associated root context.
77      */
78     public Entry[] newRootContext(){
79         if (class_ != null) {
80             try {
81                 Context c = (Context) class_.newInstance();
82                 return c.getEntries();
83             } catch (java.lang.InstantiationException JavaDoc e) {
84                 System.out.println(class_.getName() + " : Instanciation exception");
85             } catch (java.lang.IllegalAccessException JavaDoc e) {
86                 System.out.println(class_.getName() + " : Illegal access exception");
87             }
88         }
89         return null;
90     }
91     
92     /**
93      * Fixes the action class to execute
94      *
95      * @param theClass The class to instantiate
96      */
97     public void setClassName(Class JavaDoc theClass) {
98         class_ = theClass;
99     }
100
101 }
102
103
104     
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