1 /*
2 * Copyright 1999-2001,2004 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.workflow;
18
19
20 /**
21 * <p>A <strong>WorkflowException</strong> is the base class for exceptions
22 * related to the workflow engine framework.</p>
23 *
24 * @version $Revision: 155475 $ $Date: 2005-02-26 13:31:11 +0000 (Sat, 26 Feb 2005) $
25 * @author Craig R. McClanahan
26 */
27
28 public class WorkflowException extends Exception {
29
30
31 // ----------------------------------------------------------- Constructors
32
33
34 /**
35 * Construct an empty WorkflowException.
36 */
37 public WorkflowException() {
38
39 super();
40
41 }
42
43
44 /**
45 * Construct a WorkflowException with the specified message.
46 *
47 * @param message Message associated with this exception
48 */
49 public WorkflowException(String message) {
50
51 super(message);
52
53 }
54
55
56 /**
57 * Construct a WorkflowException with the specified underlying cause.
58 * [JDK 1.4 compatible]
59 *
60 * @param cause Underlying root cause
61 */
62 public WorkflowException(Throwable cause) {
63
64 super();
65 this.cause = cause;
66
67 }
68
69
70 /**
71 * Construct a WorkflowException with the specified message and
72 * underlying cause. [JDK 1.4 compatbile]
73 *
74 * @param message Message associated with this exception
75 * @param cause Underlying root cause
76 */
77 public WorkflowException(String message, Throwable cause) {
78
79 super(message);
80 this.cause = cause;
81
82 }
83
84
85 // ------------------------------------------------------------- Properties
86
87
88 /**
89 * The underlying cause exception (if any).
90 */
91 protected Throwable cause = null;
92
93 public Throwable getCause() {
94 return (this.cause);
95 }
96
97
98 }
99
100
101