ElementWidget


1   /*
2    * Copyright 2002 (C) TJDO.
3    * All rights reserved.
4    *
5    * This software is distributed under the terms of the TJDO License version 1.0.
6    * See the terms of the TJDO License in the documentation provided with this software.
7    *
8    * $Id: ElementWidget.java,v 1.3 2002/10/17 21:00:59 pierreg0 Exp $
9    */
10  
11  package com.triactive.jdo.test;
12  
13  import javax.jdo.JDOHelper;
14  
15  
16  public class ElementWidget extends Widget
17  {
18      private SetWidget owner;
19  
20  
21      /**
22       * Default constructor required since this is a PersistenceCapable class.
23       */
24      protected ElementWidget() {}
25  
26      public ElementWidget(SetWidget owner)
27      {
28          super();
29  
30          this.owner = owner;
31      }
32  
33  
34      public SetWidget getOwner()
35      {
36          return owner;
37      }
38  
39  
40      public void setOwner(SetWidget owner)
41      {
42          this.owner = owner;
43      }
44  
45  
46      /**
47       * Indicates whether some other object is "equal to" this one.  By comparing
48       * against an original copy of the object, <code>compareTo()</code> can be
49       * used to verify that the object has been written to a database and read
50       * back correctly.
51       *
52       * @param   obj     the reference object with which to compare
53       *
54       * @return  <code>true</code> if this object is equal to the obj argument;
55       *          <code>false</code> otherwise.
56       */
57  
58      public boolean compareTo(Object   obj)
59      {
60          if (this == obj)
61              return true;
62  
63          if (!(obj instanceof ElementWidget) || !super.compareTo(obj))
64              return false;
65          else
66              return true;
67      }
68  
69  
70      /**
71       * Returns a string representation for this object.  All of the field
72       * values are included in the string for debugging purposes.
73       *
74       * @return  a string representation for this object.
75       */
76  
77      public String   toString()
78      {
79          StringBuffer   s = new StringBuffer  (super.toString());
80  
81          s.append("  owner = ").append(JDOHelper.getObjectId(owner));
82          s.append('\n');
83  
84          return s.toString();
85      }
86  }
87
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