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 * YWithXInterval.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: YWithXInterval.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-value plus the bounds for the related x-interval. This curious 049 * combination exists as an implementation detail, to fit into the structure 050 * of the ComparableObjectSeries class. It would have been possible to 051 * simply reuse the {@link YInterval} class by assuming that the y-interval 052 * in fact represents the x-interval, however I decided it was better to 053 * duplicate some code in order to document the real intent. 054 * 055 * @since 1.0.3 056 */ 057 public class YWithXInterval implements Serializable { 058 059 /** The y-value. */ 060 private double y; 061 062 /** The lower bound of the x-interval. */ 063 private double xLow; 064 065 /** The upper bound of the x-interval. */ 066 private double xHigh; 067 068 /** 069 * Creates a new instance of <code>YWithXInterval</code>. 070 * 071 * @param y the y-value. 072 * @param xLow the lower bound of the x-interval. 073 * @param xHigh the upper bound of the x-interval. 074 */ 075 public YWithXInterval(double y, double xLow, double xHigh) { 076 this.y = y; 077 this.xLow = xLow; 078 this.xHigh = xHigh; 079 } 080 081 /** 082 * Returns the y-value. 083 * 084 * @return The y-value. 085 */ 086 public double getY() { 087 return this.y; 088 } 089 090 /** 091 * Returns the lower bound of the x-interval. 092 * 093 * @return The lower bound of the x-interval. 094 */ 095 public double getXLow() { 096 return this.xLow; 097 } 098 099 /** 100 * Returns the upper bound of the x-interval. 101 * 102 * @return The upper bound of the x-interval. 103 */ 104 public double getXHigh() { 105 return this.xHigh; 106 } 107 108 /** 109 * Tests this instance for equality with an arbitrary object. 110 * 111 * @param obj the object (<code>null</code> permitted). 112 * 113 * @return A boolean. 114 */ 115 public boolean equals(Object obj) { 116 if (obj == this) { 117 return true; 118 } 119 if (!(obj instanceof YWithXInterval)) { 120 return false; 121 } 122 YWithXInterval that = (YWithXInterval) obj; 123 if (this.y != that.y) { 124 return false; 125 } 126 if (this.xLow != that.xLow) { 127 return false; 128 } 129 if (this.xHigh != that.xHigh) { 130 return false; 131 } 132 return true; 133 } 134 135 }