1   /*
2    * Copyright 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  package org.apache.commons.betwixt.schema;
17  
18  /*** 
19   * <p> This is a bean specifically designed to test cyclic references. 
20   * The idea is that there's a count that counts every time <code>getFriend</code>
21   * gets called and throws a <code>RuntimeException</code> if the count gets too high.</p>
22   *
23   * @author <a href='http://jakarta.apache.org/commons'>Jakarta Commons Team</a>, <a href='http://www.apache.org'>Apache Software Foundation</a>
24   */
25  public class CyclicColumn extends ParentColumn {
26      private static int count = 0;     
27      private static final int max_count = 100;
28      
29      private CyclicBean bean;
30        
31        
32      public CyclicColumn(String name) 
33      {
34        super(name);
35      }
36        
37      public CyclicBean getBean()
38      {
39        if (++count > max_count)
40        {
41          throw new RuntimeException("Cyclic Reference!");
42        }
43        return bean;
44      }
45      
46      public void setBean(CyclicBean aBean)
47      {
48        this.bean = aBean;
49      }
50        
51      public String toString()
52      {
53        return "[CyclicColumn] name=" + getName();
54      }
55  
56  }