Source for org.jfree.data.xy.XYIntervalDataItem

   1: /* ===========================================================
   2:  * JFreeChart : a free chart library for the Java(tm) platform
   3:  * ===========================================================
   4:  *
   5:  * (C) Copyright 2000-2006, by Object Refinery Limited and Contributors.
   6:  *
   7:  * Project Info:  http://www.jfree.org/jfreechart/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  *
  27:  * -----------------------
  28:  * XYIntervalDataItem.java
  29:  * -----------------------
  30:  * (C) Copyright 2006, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   -;
  34:  *
  35:  * $Id: XYIntervalDataItem.java,v 1.1.2.1 2006/10/20 15:23:22 mungady Exp $
  36:  *
  37:  * Changes
  38:  * -------
  39:  * 20-Oct-2006 : Version 1 (DG);
  40:  *
  41:  */
  42: 
  43: package org.jfree.data.xy;
  44: 
  45: import org.jfree.data.ComparableObjectItem;
  46: 
  47: /**
  48:  * An item representing data in the form (x, x-low, x-high, y, y-low, y-high).
  49:  *
  50:  * @since 1.0.3
  51:  */
  52: public class XYIntervalDataItem extends ComparableObjectItem {
  53: 
  54:     /** 
  55:      * Creates a new instance of <code>XYIntervalItem</code>.
  56:      *
  57:      * @param x  the x-value.
  58:      * @param xLow  the lower bound of the x-interval.
  59:      * @param xHigh  the upper bound of the x-interval.
  60:      * @param y  the y-value.
  61:      * @param yLow  the lower bound of the y-interval.
  62:      * @param yHigh  the upper bound of the y-interval.
  63:      */
  64:     public XYIntervalDataItem(double x, double xLow, double xHigh, double y, 
  65:             double yLow, double yHigh) {
  66:         super(new Double(x), new XYInterval(xLow, xHigh, y, yLow, yHigh));
  67:     }
  68:     
  69:     /**
  70:      * Returns the x-value.
  71:      *
  72:      * @return The x-value (never <code>null</code>).
  73:      */
  74:     public Double getX() {
  75:         return (Double) getComparable();
  76:     }
  77:     
  78:     /**
  79:      * Returns the y-value.
  80:      *
  81:      * @return The y-value.
  82:      */
  83:     public double getYValue() {
  84:         XYInterval interval = (XYInterval) getObject();
  85:         if (interval != null) {
  86:             return interval.getY();
  87:         }
  88:         else {
  89:             return Double.NaN;
  90:         }
  91:     }
  92:     
  93:     /**
  94:      * Returns the lower bound of the x-interval.
  95:      *
  96:      * @return The lower bound of the x-interval.
  97:      */
  98:     public double getXLowValue() {
  99:         XYInterval interval = (XYInterval) getObject();
 100:         if (interval != null) {
 101:             return interval.getXLow();
 102:         }
 103:         else {
 104:             return Double.NaN;
 105:         }
 106:     }
 107:     
 108:     /**
 109:      * Returns the upper bound of the x-interval.
 110:      *
 111:      * @return The upper bound of the x-interval.
 112:      */
 113:     public double getXHighValue() {
 114:         XYInterval interval = (XYInterval) getObject();
 115:         if (interval != null) {
 116:             return interval.getXHigh();
 117:         }
 118:         else {
 119:             return Double.NaN;
 120:         }
 121:     }
 122:     
 123:     /**
 124:      * Returns the lower bound of the y-interval.
 125:      *
 126:      * @return The lower bound of the y-interval.
 127:      */
 128:     public double getYLowValue() {
 129:         XYInterval interval = (XYInterval) getObject();
 130:         if (interval != null) {
 131:             return interval.getYLow();
 132:         }
 133:         else {
 134:             return Double.NaN;
 135:         }
 136:     }
 137:     
 138:     /**
 139:      * Returns the upper bound of the y-interval.
 140:      *
 141:      * @return The upper bound of the y-interval.
 142:      */
 143:     public double getYHighValue() {
 144:         XYInterval interval = (XYInterval) getObject();
 145:         if (interval != null) {
 146:             return interval.getYHigh();
 147:         }
 148:         else {
 149:             return Double.NaN;
 150:         }
 151:     }
 152:     
 153: }