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: DefaultDataFlags.java,v 1.3 2007/04/01 18:49:24 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.data;
032
033 import java.util.Date;
034
035 import org.jfree.report.DataFlags;
036
037 /**
038 * Creation-Date: 20.02.2006, 16:00:34
039 *
040 * @author Thomas Morgner
041 */
042 public class DefaultDataFlags implements DataFlags
043 {
044 private Object value;
045 private boolean changed;
046 private String name;
047
048 public DefaultDataFlags(final String name,
049 final Object value,
050 final boolean changed)
051 {
052 this.value = value;
053 this.changed = changed;
054 this.name = name;
055 }
056
057 public boolean isNumeric()
058 {
059 return value instanceof Number;
060 }
061
062 public boolean isDate()
063 {
064 return value instanceof Date;
065 }
066
067 public boolean isNull()
068 {
069 return value == null;
070 }
071
072 public boolean isZero()
073 {
074 if (isNumeric() == false)
075 {
076 return false;
077 }
078 Number n = (Number) value;
079 return (n.floatValue() == 0);
080 }
081
082 public boolean isNegative()
083 {
084 if (isNumeric() == false)
085 {
086 return false;
087 }
088 Number n = (Number) value;
089 return (n.floatValue() < 0);
090 }
091
092 public boolean isPositive()
093 {
094 if (isNumeric() == false)
095 {
096 return false;
097 }
098 Number n = (Number) value;
099 return (n.floatValue() > 0);
100 }
101
102 public boolean isChanged()
103 {
104 return changed;
105 }
106
107 public Object getValue()
108 {
109 return value;
110 }
111
112 public String getName()
113 {
114 return name;
115 }
116
117 public String toString ()
118 {
119 StringBuffer b = new StringBuffer();
120 b.append("DefaultDataFlags={name=");
121 b.append(name);
122 b.append(", value=");
123 b.append(value);
124 b.append(", changed=");
125 b.append(changed);
126 b.append("}");
127 return b.toString();
128 }
129 }