1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/betwixt/src/test/org/apache/commons/betwixt/LoopBean.java,v 1.4 2002/05/31 22:39:31 jon Exp $
3 * $Revision: 1.4 $
4 * $Date: 2002/05/31 22:39:31 $
5 *
6 * ====================================================================
7 *
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
11 * reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. The end-user documentation included with the redistribution, if
26 * any, must include the following acknowlegement:
27 * "This product includes software developed by the
28 * Apache Software Foundation (http://www.apache.org/)."
29 * Alternately, this acknowlegement may appear in the software itself,
30 * if and wherever such third-party acknowlegements normally appear.
31 *
32 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
33 * Foundation" must not be used to endorse or promote products derived
34 * from this software without prior written permission. For written
35 * permission, please contact apache@apache.org.
36 *
37 * 5. Products derived from this software may not be called "Apache"
38 * nor may "Apache" appear in their names without prior written
39 * permission of the Apache Group.
40 *
41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This software consists of voluntary contributions made by many
56 * individuals on behalf of the Apache Software Foundation. For more
57 * information on the Apache Software Foundation, please see
58 * <http://www.apache.org/>.
59 *
60 * $Id: LoopBean.java,v 1.4 2002/05/31 22:39:31 jon Exp $
61 */
62 package org.apache.commons.betwixt;
63
64 /*** <p> This is a bean specifically designed to test cyclic references.
65 * The idea is that there's a count that counts every time <code>getFriend</code>
66 * gets called and throws a <code>RuntimeException</code> if the count gets too high.</p>
67 *
68 * @author Robert Burrell Donkin
69 * @version $Revision: 1.4 $
70 */
71 public class LoopBean
72 {
73 private static int count = 0;
74
75 private static final int max_count = 100;
76
77 private LoopBean friend;
78
79 private String name;
80
81 public static final LoopBean createNoLoopExampleBean()
82 {
83 LoopBean root = new LoopBean("Root");
84 LoopBean levelOne = new LoopBean("level1");
85 LoopBean levelTwo = new LoopBean("level2");
86 LoopBean levelThree = new LoopBean("level3");
87 LoopBean levelFour = new LoopBean("level4");
88 LoopBean levelFive = new LoopBean("level5");
89
90 root.setFriend(levelOne);
91 levelOne.setFriend(levelTwo);
92 levelTwo.setFriend(levelThree);
93 levelThree.setFriend(levelFour);
94 levelFour.setFriend(levelFive);
95
96 return root;
97 }
98
99 public static final LoopBean createLoopExampleBean()
100 {
101 LoopBean root = new LoopBean("Root");
102 LoopBean levelOne = new LoopBean("level1");
103 LoopBean levelTwo = new LoopBean("level2");
104 LoopBean levelThree = new LoopBean("level3");
105 LoopBean levelFour = new LoopBean("level4");
106 LoopBean levelFive = new LoopBean("level5");
107
108 root.setFriend(levelOne);
109 levelOne.setFriend(levelTwo);
110 levelTwo.setFriend(levelThree);
111 levelThree.setFriend(levelFour);
112 levelFour.setFriend(levelFive);
113 levelFive.setFriend(root);
114
115 return root;
116 }
117
118
119 public static final LoopBean createIdOnlyLoopExampleBean()
120 {
121 LoopBean root = new LoopBean("Root");
122 LoopBean levelOne = new LoopBean("level1");
123 LoopBean levelTwo = new LoopBean("level2");
124 LoopBean levelThree = new LoopBean("level3");
125 LoopBean levelFour = new LoopBean("level4");
126 LoopBean levelFive = new LoopBean("level5");
127 LoopBean notRoot = new LoopBean("Root");
128
129 root.setFriend(levelOne);
130 levelOne.setFriend(levelTwo);
131 levelTwo.setFriend(levelThree);
132 levelThree.setFriend(levelFour);
133 levelFour.setFriend(levelFive);
134 levelFive.setFriend(notRoot);
135
136 return root;
137 }
138
139 public LoopBean(String name)
140 {
141 this.name = name;
142 }
143
144 public LoopBean getFriend()
145 {
146 if (++count > max_count)
147 {
148 throw new RuntimeException("Looping!");
149 }
150 return friend;
151 }
152
153 public void setFriend(LoopBean friend)
154 {
155 this.friend = friend;
156 }
157
158 public String getName()
159 {
160 return name;
161 }
162
163 public String toString()
164 {
165 return "[LoopBean] name=" + name;
166 }
167 }
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