KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > widget > TransientProperty


1 /*
2  * Copyright (c) 1998-2005 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Sam
27  */
28
29 package com.caucho.widget;
30
31 /**
32  * If transient is true, the widget does not save it's parameters or
33  * the parameters of any children, default is false.
34  */
35 public class TransientProperty
36 {
37   static public final VarDefinition TRANSIENT
38     = new VarDefinition("com.caucho.widget.transient", Boolean.class)
39     {
40       {
41         setValue(false);
42         setAllowNull(false);
43       }
44     };
45
46   private boolean _isTransient;
47   private Widget _widget;
48
49   public TransientProperty(Widget widget)
50   {
51     _widget = widget;
52   }
53
54   public void setValue(boolean isTransient)
55   {
56     _isTransient = isTransient;
57   }
58
59   public boolean getValue()
60   {
61     return _isTransient;
62   }
63
64   public void init(WidgetInit init)
65     throws WidgetException
66   {
67     init.addVarDefinition(TRANSIENT);
68     setValue(init, _isTransient);
69   }
70
71   public void setValue(VarContext context, boolean isTransient)
72   {
73     context.setVar(_widget, TRANSIENT, isTransient);
74   }
75
76   public boolean getValue(VarContext context)
77   {
78     Boolean isTransient = context.getVar(_widget, TRANSIENT);
79
80     return isTransient.booleanValue();
81   }
82 }
83
Popular Tags