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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: * YInterval.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-interval. This class is used internally by the 47: * {@link YIntervalDataItem} class. 48: * 49: * @since 1.0.3 50: */ 51: public class YInterval implements Serializable { 52: 53: /** The y-value. */ 54: private double y; 55: 56: /** The lower bound of the y-interval. */ 57: private double yLow; 58: 59: /** The upper bound of the y-interval. */ 60: private double yHigh; 61: 62: /** 63: * Creates a new instance of <code>YInterval</code>. 64: * 65: * @param y the y-value. 66: * @param yLow the lower bound of the y-interval. 67: * @param yHigh the upper bound of the y-interval. 68: */ 69: public YInterval(double y, double yLow, double yHigh) { 70: this.y = y; 71: this.yLow = yLow; 72: this.yHigh = yHigh; 73: } 74: 75: /** 76: * Returns the y-value. 77: * 78: * @return The y-value. 79: */ 80: public double getY() { 81: return this.y; 82: } 83: 84: /** 85: * Returns the lower bound of the y-interval. 86: * 87: * @return The lower bound of the y-interval. 88: */ 89: public double getYLow() { 90: return this.yLow; 91: } 92: 93: /** 94: * Returns the upper bound of the y-interval. 95: * 96: * @return The upper bound of the y-interval. 97: */ 98: public double getYHigh() { 99: return this.yHigh; 100: } 101: 102: /** 103: * Tests this instance for equality with an arbitrary object. 104: * 105: * @param obj the object (<code>null</code> permitted). 106: * 107: * @return A boolean. 108: */ 109: public boolean equals(Object obj) { 110: if (obj == this) { 111: return true; 112: } 113: if (!(obj instanceof YInterval)) { 114: return false; 115: } 116: YInterval that = (YInterval) obj; 117: if (this.y != that.y) { 118: return false; 119: } 120: if (this.yLow != that.yLow) { 121: return false; 122: } 123: if (this.yHigh != that.yHigh) { 124: return false; 125: } 126: return true; 127: } 128: 129: }