001 /**
002 * ========================================
003 * JFreeReport : a free Java report library
004 * ========================================
005 *
006 * Project Info: http://reporting.pentaho.org/
007 *
008 * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
009 *
010 * This library is free software; you can redistribute it and/or modify it under the terms
011 * of the GNU Lesser General Public License as published by the Free Software Foundation;
012 * either version 2.1 of the License, or (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016 * See the GNU Lesser General Public License for more details.
017 *
018 * You should have received a copy of the GNU Lesser General Public License along with this
019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020 * Boston, MA 02111-1307, USA.
021 *
022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023 * in the United States and other countries.]
024 *
025 * ------------
026 * $Id: BigDecimalValueConverter.java,v 1.7 2007/04/01 18:49:34 taqua Exp $
027 * ------------
028 * (C) Copyright 2000-2005, by Object Refinery Limited.
029 * (C) Copyright 2005-2007, by Pentaho Corporation.
030 */
031 package org.jfree.report.util.beans;
032
033 import java.math.BigDecimal;
034
035 /**
036 * A class that handles the conversion of {@link BigDecimal} attributes to and from their
037 * {@link String} representation.
038 *
039 * @author Thomas Morgner
040 */
041 public class BigDecimalValueConverter implements ValueConverter
042 {
043
044 /**
045 * Creates a new value converter.
046 */
047 public BigDecimalValueConverter ()
048 {
049 super();
050 }
051
052 /**
053 * Converts the attribute to a string.
054 *
055 * @param o the attribute ({@link BigDecimal} expected).
056 * @return A string representing the {@link BigDecimal} value.
057 */
058 public String toAttributeValue (final Object o)
059 {
060 if (o instanceof Integer)
061 {
062 return o.toString();
063 }
064 throw new ClassCastException("Give me a real type.");
065 }
066
067 /**
068 * Converts a string to a {@link BigDecimal}.
069 *
070 * @param s the string.
071 * @return a {@link BigDecimal}.
072 */
073 public Object toPropertyValue (final String s)
074 {
075 return new BigDecimal(s);
076 }
077 }