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1 | /* | |
2 | * Copyright (c) 2000-2005, University of Salford | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions are met: | |
7 | * | |
8 | * Redistributions of source code must retain the above copyright notice, this | |
9 | * list of conditions and the following disclaimer. | |
10 | * | |
11 | * Redistributions in binary form must reproduce the above copyright notice, | |
12 | * this list of conditions and the following disclaimer in the documentation | |
13 | * and/or other materials provided with the distribution. | |
14 | * | |
15 | * Neither the name of the University of Salford nor the names of its | |
16 | * contributors may be used to endorse or promote products derived from this | |
17 | * software without specific prior written permission. | |
18 | * | |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
20 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
23 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
29 | * POSSIBILITY OF SUCH DAMAGE. | |
30 | */ | |
31 | ||
32 | package issrg.pba; | |
33 | ||
34 | /** | |
35 | * This is an exception to be thrown by PBA API implementations in cases of | |
36 | * need. It contains the real cause of the error, in case the error has been | |
37 | * caused by some other objects used by the implementation. | |
38 | * | |
39 | * <p>Example: | |
40 | * <p><code>try{<br> | |
41 | * ...<br> | |
42 | * }catch(PbaException pba){<br> | |
43 | * throw pba;<br> | |
44 | * }catch(Throwable th){<br> | |
45 | * throw new PbaException("Internal error", th);<br> | |
46 | * }<br> | |
47 | * </code> | |
48 | * Note that the code above will throw only PbaExceptions. All other errors | |
49 | * are caught and embedded. This allows the caller of the code to catch | |
50 | * PbaExceptions only, and be sure nothing else will happen. The simplest | |
51 | * error handler will just display an error, a sophisticated error handler | |
52 | * can still extract the real cause of the error and do something cleverer. | |
53 | * | |
54 | * @author A Otenko | |
55 | * @version 1.0 | |
56 | */ | |
57 | ||
58 | public class PbaException extends issrg.utils.EmbeddedException { | |
59 | //public static final int UNDEFINED_ERROR=-1; | |
60 | ||
61 | //protected int errCode=UNDEFINED_ERROR; | |
62 | /** | |
63 | * The default constructor builds an exception with no explanation | |
64 | * message and no embedded exception. | |
65 | */ | |
66 | 0 | public PbaException(){ |
67 | 0 | super(); |
68 | } | |
69 | ||
70 | /** | |
71 | * This constructor builds an exception with a message but no | |
72 | * embedded exception. | |
73 | * | |
74 | * @param msg is the String message explaining the error; can be null | |
75 | */ | |
76 | 824 | public PbaException(String msg){ |
77 | 824 | super(msg); |
78 | } | |
79 | ||
80 | /** | |
81 | * This constructor builds an exception with a message and an | |
82 | * embedded exception to be returned by getEmbedded method. | |
83 | * | |
84 | * @param msg is the String explanation of the error; can be null | |
85 | * @param th is the Throwable object to be believed the cause of | |
86 | * the error; can be null, if there is no embedded exception | |
87 | * | |
88 | * @see issrg.utils.EmbeddedException#getEmbedded() | |
89 | */ | |
90 | 199 | public PbaException(String msg, Throwable th){ |
91 | 199 | super(msg, th); |
92 | } | |
93 | } |
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