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


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: ExceptionJoinPointImpl.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
30 import java.util.*;
31 import java.io.*;
32 import ch.ethz.jvmai.JoinPoint;
33 import ch.ethz.jvmai.ExceptionJoinPoint;
34 import ch.ethz.jvmai.JoinPointKinds;
35
36
37 /**
38  * Abstract class ExceptionJoinPoint represents a
39  * joinpoint related to an exception
40  *
41  * @version $Revision: 1.1.1.1 $
42  * @author Philippe Schoch
43  * @author Andrei Popovici
44  */
45 public
46 class ExceptionJoinPointImpl extends CodeJoinPointImpl implements ExceptionJoinPoint,JoinPointKinds {
47
48   protected Throwable JavaDoc exception;
49   protected Class JavaDoc handlerClass;
50
51   protected ExceptionJoinPointImpl(ControlFlow cf, JoinPointContext ctx)
52     {
53       super(cf,ctx);
54       target = null;
55     }
56
57     /**
58      * Specifies the exception object that has been thrown.
59      */
60     public Throwable JavaDoc getException()
61     {
62       return exception;
63     }
64
65     /** True if there is a handler
66      */
67     public boolean hasHandler()
68     {
69       return (handlerClass != null);
70     }
71
72     public Class JavaDoc handlerClass()
73     {
74     return handlerClass;
75     }
76
77
78     public String JavaDoc getKind()
79     {
80     return ExceptionJoinPoint.KIND;
81     }
82
83   public int getMask()
84     {
85       return MASK_CODE_JP | MASK_EXCEPTION_THROW_ARGS_JP;
86     }
87
88 }
89
90
91 //======================================================================
92 //
93 // $Log: ExceptionJoinPointImpl.java,v $
94 // Revision 1.1.1.1 2003/07/02 15:30:50 apopovic
95 // Imported from ETH Zurich
96 //
97 // Revision 1.5 2003/05/06 15:51:14 popovici
98 // Mozilla-ification
99 //
100 // Revision 1.4 2003/05/05 17:46:24 popovici
101 // Refactorization step (runes->prose) cleanup
102 //
103 // Revision 1.3 2003/04/17 08:47:03 popovici
104 // Important functionality additions
105 // - Cflow specializers
106 // - Restructuring of the MethodCut, SetCut, ExceptionCut, and GetCut (they are much smaller)
107 // - Transactional capabilities
108 // - Total refactoring of Specializer evaluation, which permits fine-grained distinction
109 // between static and dynamic specializers.
110 // - Functionality pulled up in abstract classes
111 // - Uniformization of advice methods patterns and names
112 //
113 // Revision 1.2 2003/03/04 16:09:32 popovici
114 // Documentation improvements
115 //
116 // Revision 1.1 2003/03/04 11:26:32 popovici
117 // Important refactorization step (march):
118 // - removal of 'JoinPointEvents'; JoinPoints now have the same function as events
119 // - reimplementation of the JVMAIDebuggerAspectInterface (better performance, coding conventions, removal of ProseVM
120 // structures
121 //
122 // Revision 1.1 2002/10/17 12:23:41 pschoch
123 // Added throw capabability to JVMAI
124 //
125
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