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Java > Open Source Codes > org > apache > commons > logging > LogConfigurationException


1 /*
2  * Copyright 2001-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.commons.logging;
18
19
20 /**
21  * <p>An exception that is thrown only if a suitable <code>LogFactory</code>
22  * or <code>Log</code> instance cannot be created by the corresponding
23  * factory methods.</p>
24  *
25  * <p>In this version of JCL, this exception will never be thrown in practice. However, it is
26  * included here to ensure total compile time and run time compatibility with the original JCL 1.0.4.
27  *
28  * @author Craig R. McClanahan
29  */
30
31 public class LogConfigurationException extends RuntimeException JavaDoc {
32
33
34     /**
35      * Construct a new exception with <code>null</code> as its detail message.
36      */
37     public LogConfigurationException() {
38
39         super();
40
41     }
42
43
44     /**
45      * Construct a new exception with the specified detail message.
46      *
47      * @param message The detail message
48      */
49     public LogConfigurationException(String JavaDoc message) {
50
51         super(message);
52
53     }
54
55
56     /**
57      * Construct a new exception with the specified cause and a derived
58      * detail message.
59      *
60      * @param cause The underlying cause
61      */
62     public LogConfigurationException(Throwable JavaDoc cause) {
63
64         this((cause == null) ? null : cause.toString(), cause);
65
66     }
67
68
69     /**
70      * Construct a new exception with the specified detail message and cause.
71      *
72      * @param message The detail message
73      * @param cause The underlying cause
74      */
75     public LogConfigurationException(String JavaDoc message, Throwable JavaDoc cause) {
76
77         super(message + " (Caused by " + cause + ")");
78         this.cause = cause; // Two-argument version requires JDK 1.4 or later
79
80     }
81
82
83     /**
84      * The underlying cause of this exception.
85      */
86     protected Throwable JavaDoc cause = null;
87
88
89     /**
90      * Return the underlying cause of this exception (if any).
91      */
92     public Throwable JavaDoc getCause() {
93
94         return (this.cause);
95
96     }
97
98
99 }
100
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