01: /**
02: * ========================================
03: * JFreeReport : a free Java report library
04: * ========================================
05: *
06: * Project Info: http://reporting.pentaho.org/
07: *
08: * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
09: *
10: * This library is free software; you can redistribute it and/or modify it under the terms
11: * of the GNU Lesser General Public License as published by the Free Software Foundation;
12: * either version 2.1 of the License, or (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15: * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16: * See the GNU Lesser General Public License for more details.
17: *
18: * You should have received a copy of the GNU Lesser General Public License along with this
19: * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20: * Boston, MA 02111-1307, USA.
21: *
22: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
23: * in the United States and other countries.]
24: *
25: * ------------
26: * $Id: BigDecimalValueConverter.java 3048 2007-07-28 18:02:42Z tmorgner $
27: * ------------
28: * (C) Copyright 2000-2005, by Object Refinery Limited.
29: * (C) Copyright 2005-2007, by Pentaho Corporation.
30: */package org.jfree.report.util.beans;
31:
32: import java.math.BigDecimal;
33:
34: /**
35: * A class that handles the conversion of {@link BigDecimal} attributes to and from their
36: * {@link String} representation.
37: *
38: * @author Thomas Morgner
39: */
40: public class BigDecimalValueConverter implements ValueConverter {
41:
42: /**
43: * Creates a new value converter.
44: */
45: public BigDecimalValueConverter() {
46: super ();
47: }
48:
49: /**
50: * Converts the attribute to a string.
51: *
52: * @param o the attribute ({@link BigDecimal} expected).
53: * @return A string representing the {@link BigDecimal} value.
54: */
55: public String toAttributeValue(final Object o) {
56: if (o instanceof Integer) {
57: return o.toString();
58: }
59: throw new ClassCastException("Give me a real type.");
60: }
61:
62: /**
63: * Converts a string to a {@link BigDecimal}.
64: *
65: * @param s the string.
66: * @return a {@link BigDecimal}.
67: */
68: public Object toPropertyValue(final String s) {
69: return new BigDecimal(s);
70: }
71: }
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