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Java > Open Source Codes > ch > ethz > inf > iks > jvmai > jvmdi > DebuggerProvider


1 //
2 // This file is part of the prose package.
3 //
4 // The contents of this file are subject to the Mozilla Public License
5 // Version 1.1 (the "License"); you may not use this file except in
6 // compliance with the License. You may obtain a copy of the License at
7 // http://www.mozilla.org/MPL/
8 //
9 // Software distributed under the License is distributed on an "AS IS" basis,
10 // WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 // for the specific language governing rights and limitations under the
12 // License.
13 //
14 // The Original Code is prose.
15 //
16 // The Initial Developer of the Original Code is Andrei Popovici. Portions
17 // created by Andrei Popovici are Copyright (C) 2002 Andrei Popovici.
18 // All Rights Reserved.
19 //
20 // Contributor(s):
21 // $Id: DebuggerProvider.java,v 1.1.1.1 2003/07/02 15:30:50 apopovic Exp $
22 // =====================================================================
23 //
24 // (history at end)
25 //
26
27 package ch.ethz.inf.iks.jvmai.jvmdi;
28
29 // used packages/classes
30 import ch.ethz.jvmai.JVMAspectInterface;
31
32 import ch.ethz.jvmai.Provider;
33
34 /**
35
36  *
37  * @version $Revision: 1.1.1.1 $
38  * @author $Author: apopovic $
39  */
40 public
41 class DebuggerProvider extends Provider{
42
43     public DebuggerProvider()
44     {
45     super();
46     }
47
48     private static AspectInterfaceImpl daspect;
49
50     private static boolean isInitialized = false;
51     private static synchronized void idempotentInit()
52     {
53     if (!isInitialized)
54         {
55             daspect = new AspectInterfaceImpl();
56             isInitialized = true;
57         }
58     }
59
60     /**
61      * Returns the apect-interface of the jvmai-system supported by this provider.
62      */
63     public JVMAspectInterface getAspectInterface()
64     {
65     idempotentInit();
66     return daspect;
67     }
68
69
70 }
71
72 //======================================================================
73 //
74 // $Log: DebuggerProvider.java,v $
75 // Revision 1.1.1.1 2003/07/02 15:30:50 apopovic
76 // Imported from ETH Zurich
77 //
78 // Revision 1.5 2003/05/05 17:46:23 popovici
79 // Refactorization step (runes->prose) cleanup
80 //
81 // Revision 1.4 2003/04/30 20:16:24 popovici
82 // Changes for windows portability
83 //
84 // Revision 1.3 2003/03/04 11:26:32 popovici
85 // Important refactorization step (march):
86 // - removal of 'JoinPointEvents'; JoinPoints now have the same function as events
87 // - reimplementation of the JVMAIDebuggerAspectInterface (better performance, coding conventions, removal of ProseVM
88 // structures
89 //
90 // Revision 1.2 2002/03/28 13:48:13 popovici
91 // Mozilla-ified
92 //
93 // Revision 1.1 2002/02/06 11:53:49 popovici
94 // Refactoring from prose classical to jvmai
95 //
96 // Revision 1.2 2002/01/24 12:52:14 smarkwal
97 // Constructor is now 'protected'. Comments added.
98 //
99 // Revision 1.1 2001/12/14 15:01:19 smarkwal
100 // Initial Revision
101 //
102
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