001 /* =========================================================== 002 * JFreeChart : a free chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C) Copyright 2000-2006, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jfreechart/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * -------------- 028 * YInterval.java 029 * -------------- 030 * (C) Copyright 2006, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): -; 034 * 035 * $Id: YInterval.java,v 1.1.2.1 2006/10/20 15:23:22 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 20-Oct-2006 : Version 1 (DG); 040 * 041 */ 042 043 package org.jfree.data.xy; 044 045 import java.io.Serializable; 046 047 /** 048 * A y-interval. This class is used internally by the 049 * {@link YIntervalDataItem} class. 050 * 051 * @since 1.0.3 052 */ 053 public class YInterval implements Serializable { 054 055 /** The y-value. */ 056 private double y; 057 058 /** The lower bound of the y-interval. */ 059 private double yLow; 060 061 /** The upper bound of the y-interval. */ 062 private double yHigh; 063 064 /** 065 * Creates a new instance of <code>YInterval</code>. 066 * 067 * @param y the y-value. 068 * @param yLow the lower bound of the y-interval. 069 * @param yHigh the upper bound of the y-interval. 070 */ 071 public YInterval(double y, double yLow, double yHigh) { 072 this.y = y; 073 this.yLow = yLow; 074 this.yHigh = yHigh; 075 } 076 077 /** 078 * Returns the y-value. 079 * 080 * @return The y-value. 081 */ 082 public double getY() { 083 return this.y; 084 } 085 086 /** 087 * Returns the lower bound of the y-interval. 088 * 089 * @return The lower bound of the y-interval. 090 */ 091 public double getYLow() { 092 return this.yLow; 093 } 094 095 /** 096 * Returns the upper bound of the y-interval. 097 * 098 * @return The upper bound of the y-interval. 099 */ 100 public double getYHigh() { 101 return this.yHigh; 102 } 103 104 /** 105 * Tests this instance for equality with an arbitrary object. 106 * 107 * @param obj the object (<code>null</code> permitted). 108 * 109 * @return A boolean. 110 */ 111 public boolean equals(Object obj) { 112 if (obj == this) { 113 return true; 114 } 115 if (!(obj instanceof YInterval)) { 116 return false; 117 } 118 YInterval that = (YInterval) obj; 119 if (this.y != that.y) { 120 return false; 121 } 122 if (this.yLow != that.yLow) { 123 return false; 124 } 125 if (this.yHigh != that.yHigh) { 126 return false; 127 } 128 return true; 129 } 130 131 }