001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2008, 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 * XYInterval.java
029 * ---------------
030 * (C) Copyright 2006-2008, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * Changes
036 * -------
037 * 20-Oct-2006 : Version 1 (DG);
038 *
039 */
040
041 package org.jfree.data.xy;
042
043 import java.io.Serializable;
044
045 /**
046 * An xy-interval. This class is used internally by the
047 * {@link XYIntervalDataItem} class.
048 *
049 * @since 1.0.3
050 */
051 public class XYInterval implements Serializable {
052
053 /** The lower bound of the x-interval. */
054 private double xLow;
055
056 /** The upper bound of the y-interval. */
057 private double xHigh;
058
059 /** The y-value. */
060 private double y;
061
062 /** The lower bound of the y-interval. */
063 private double yLow;
064
065 /** The upper bound of the y-interval. */
066 private double yHigh;
067
068 /**
069 * Creates a new instance of <code>XYInterval</code>.
070 *
071 * @param xLow the lower bound of the x-interval.
072 * @param xHigh the upper bound of the y-interval.
073 * @param y the y-value.
074 * @param yLow the lower bound of the y-interval.
075 * @param yHigh the upper bound of the y-interval.
076 */
077 public XYInterval(double xLow, double xHigh, double y, double yLow,
078 double yHigh) {
079 this.xLow = xLow;
080 this.xHigh = xHigh;
081 this.y = y;
082 this.yLow = yLow;
083 this.yHigh = yHigh;
084 }
085
086 /**
087 * Returns the lower bound of the x-interval.
088 *
089 * @return The lower bound of the x-interval.
090 */
091 public double getXLow() {
092 return this.xLow;
093 }
094
095 /**
096 * Returns the upper bound of the x-interval.
097 *
098 * @return The upper bound of the x-interval.
099 */
100 public double getXHigh() {
101 return this.xHigh;
102 }
103
104 /**
105 * Returns the y-value.
106 *
107 * @return The y-value.
108 */
109 public double getY() {
110 return this.y;
111 }
112
113 /**
114 * Returns the lower bound of the y-interval.
115 *
116 * @return The lower bound of the y-interval.
117 */
118 public double getYLow() {
119 return this.yLow;
120 }
121
122 /**
123 * Returns the upper bound of the y-interval.
124 *
125 * @return The upper bound of the y-interval.
126 */
127 public double getYHigh() {
128 return this.yHigh;
129 }
130
131 /**
132 * Tests this instance for equality with an arbitrary object.
133 *
134 * @param obj the object (<code>null</code> permitted).
135 *
136 * @return A boolean.
137 */
138 public boolean equals(Object obj) {
139 if (obj == this) {
140 return true;
141 }
142 if (!(obj instanceof XYInterval)) {
143 return false;
144 }
145 XYInterval that = (XYInterval) obj;
146 if (this.xLow != that.xLow) {
147 return false;
148 }
149 if (this.xHigh != that.xHigh) {
150 return false;
151 }
152 if (this.y != that.y) {
153 return false;
154 }
155 if (this.yLow != that.yLow) {
156 return false;
157 }
158 if (this.yHigh != that.yHigh) {
159 return false;
160 }
161 return true;
162 }
163
164 }