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1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2007, 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: * YWithXInterval.java 29: * ------------------- 30: * (C) Copyright 2006, 2007, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): -; 34: * 35: * Changes 36: * ------- 37: * 20-Oct-2006 : Version 1 (DG); 38: * 39: */ 40: 41: package org.jfree.data.xy; 42: 43: import java.io.Serializable; 44: 45: /** 46: * A y-value plus the bounds for the related x-interval. This curious 47: * combination exists as an implementation detail, to fit into the structure 48: * of the ComparableObjectSeries class. It would have been possible to 49: * simply reuse the {@link YInterval} class by assuming that the y-interval 50: * in fact represents the x-interval, however I decided it was better to 51: * duplicate some code in order to document the real intent. 52: * 53: * @since 1.0.3 54: */ 55: public class YWithXInterval implements Serializable { 56: 57: /** The y-value. */ 58: private double y; 59: 60: /** The lower bound of the x-interval. */ 61: private double xLow; 62: 63: /** The upper bound of the x-interval. */ 64: private double xHigh; 65: 66: /** 67: * Creates a new instance of <code>YWithXInterval</code>. 68: * 69: * @param y the y-value. 70: * @param xLow the lower bound of the x-interval. 71: * @param xHigh the upper bound of the x-interval. 72: */ 73: public YWithXInterval(double y, double xLow, double xHigh) { 74: this.y = y; 75: this.xLow = xLow; 76: this.xHigh = xHigh; 77: } 78: 79: /** 80: * Returns the y-value. 81: * 82: * @return The y-value. 83: */ 84: public double getY() { 85: return this.y; 86: } 87: 88: /** 89: * Returns the lower bound of the x-interval. 90: * 91: * @return The lower bound of the x-interval. 92: */ 93: public double getXLow() { 94: return this.xLow; 95: } 96: 97: /** 98: * Returns the upper bound of the x-interval. 99: * 100: * @return The upper bound of the x-interval. 101: */ 102: public double getXHigh() { 103: return this.xHigh; 104: } 105: 106: /** 107: * Tests this instance for equality with an arbitrary object. 108: * 109: * @param obj the object (<code>null</code> permitted). 110: * 111: * @return A boolean. 112: */ 113: public boolean equals(Object obj) { 114: if (obj == this) { 115: return true; 116: } 117: if (!(obj instanceof YWithXInterval)) { 118: return false; 119: } 120: YWithXInterval that = (YWithXInterval) obj; 121: if (this.y != that.y) { 122: return false; 123: } 124: if (this.xLow != that.xLow) { 125: return false; 126: } 127: if (this.xHigh != that.xHigh) { 128: return false; 129: } 130: return true; 131: } 132: 133: }