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 3525 2007-10-16 11:43:48Z tmorgner $ 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 final 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 final 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 final 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 final 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 }