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: }
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