01: /*
02: * Copyright (c) 2002-2007 JGoodies Karsten Lentzsch. All Rights Reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * o Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: *
10: * o Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * o Neither the name of JGoodies Karsten Lentzsch nor the names of
15: * its contributors may be used to endorse or promote products derived
16: * from this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20: * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
22: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
27: * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
28: * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29: */
30:
31: package com.jgoodies.binding.tests.value;
32:
33: import com.jgoodies.binding.value.AbstractValueModel;
34:
35: /**
36: * A ValueHolder implementation that creates a new String or Integer
37: * instance every time its value is requested with <code>#getValue</code>.
38: *
39: * @author Karsten Lentzsch
40: * @version $Revision: 1.6 $
41: */
42: public final class CloningValueHolder extends AbstractValueModel {
43:
44: private Object value;
45:
46: public CloningValueHolder(Object initialValue) {
47: this .value = initialValue;
48: }
49:
50: public Object getValue() {
51: if (value instanceof String) {
52: return new String((String) value);
53: } else if (value instanceof Integer) {
54: return new Integer(((Integer) value).intValue());
55: }
56: return value;
57: }
58:
59: public void setValue(Object newValue) {
60: Object oldValue = getValue();
61: value = newValue;
62: fireValueChange(oldValue, newValue);
63: }
64:
65: }
|