1 /***
2 * BadLayerDefinitionException.java
3 *
4 * Project: Dependency Tool
5 *
6 * WHEN WHO WHAT
7 * 06.06.2003 pko initial public release
8 * 25.06.2002 ctr creation
9 *
10 * Copyright 2003 ELCA Informatique SA
11 * Av. de la Harpe 22-24, 1000 Lausanne 13, Switzerland
12 * www.elca.ch
13 *
14 * This library is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU Lesser General Public License
16 * as published by the Free Software Foundation; either version 2.1 of
17 * the License, or (at your option) any later version.
18 *
19 * This library is distributed in the hope that it will be useful, but
20 * WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * Lesser General Public License for more details.
23 *
24 * You should have received a copy of the GNU Lesser General Public
25 * License along with this library; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 * USA
28 */
29
30 package ch.elca.dependency.exception;
31
32 /***
33 * Is thrown if the user defined layers are invalid.
34 *
35 * @author Pawel Kowalski
36 * @version 1.0-beta
37 */
38 public class BadLayerDefinitionException extends Exception {
39
40 /***
41 * Standard error message.
42 */
43 private String m_message = "Invalid user layer definition.";
44
45 /***
46 * Constructor - Calls the constructor of the supperclass with no arguments.
47 */
48 public BadLayerDefinitionException() {
49 super();
50 }
51
52 /***
53 * Constructor with a specific message string. Calls the corresponding
54 * constructor of the superclass.
55 *
56 * @param msg Message string specified by the user.
57 */
58 public BadLayerDefinitionException(String msg) {
59 super(msg);
60 }
61
62 /***
63 * Constructor with an other exception specified as an argument.
64 * The message of the given exception is set to this exception class.
65 *
66 * @param e Original exception.
67 */
68 public BadLayerDefinitionException(Exception e){
69 super(e.getMessage());
70 }
71
72 /***
73 * Gets the message of the wrapped class and displays it with the standard
74 * message of this exception.
75 *
76 * @return A message string composed of the standard message of this class
77 * plus the message of the wrapped <code>Exception</code>.
78 */
79 public String getMessage() {
80 if( super.getMessage() == null ){
81 return m_message;
82 } else {
83 return super.getMessage();
84 }
85 }
86 }
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