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jfreechart example source code file (YWithXInterval.java)

This example jfreechart source code file (YWithXInterval.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

io, serializable, serializable, ywithxinterval, ywithxinterval

The jfreechart YWithXInterval.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -------------------
 * YWithXInterval.java
 * -------------------
 * (C) Copyright 2006-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 20-Oct-2006 : Version 1 (DG);
 *
 */

package org.jfree.data.xy;

import java.io.Serializable;

/**
 * A y-value plus the bounds for the related x-interval.  This curious
 * combination exists as an implementation detail, to fit into the structure
 * of the ComparableObjectSeries class.  It would have been possible to
 * simply reuse the {@link YInterval} class by assuming that the y-interval
 * in fact represents the x-interval, however I decided it was better to
 * duplicate some code in order to document the real intent.
 *
 * @since 1.0.3
 */
public class YWithXInterval implements Serializable {

    /** The y-value. */
    private double y;

    /** The lower bound of the x-interval. */
    private double xLow;

    /** The upper bound of the x-interval. */
    private double xHigh;

    /**
     * Creates a new instance of <code>YWithXInterval.
     *
     * @param y  the y-value.
     * @param xLow  the lower bound of the x-interval.
     * @param xHigh  the upper bound of the x-interval.
     */
    public YWithXInterval(double y, double xLow, double xHigh) {
        this.y = y;
        this.xLow = xLow;
        this.xHigh = xHigh;
    }

    /**
     * Returns the y-value.
     *
     * @return The y-value.
     */
    public double getY() {
        return this.y;
    }

    /**
     * Returns the lower bound of the x-interval.
     *
     * @return The lower bound of the x-interval.
     */
    public double getXLow() {
        return this.xLow;
    }

    /**
     * Returns the upper bound of the x-interval.
     *
     * @return The upper bound of the x-interval.
     */
    public double getXHigh() {
        return this.xHigh;
    }

    /**
     * Tests this instance for equality with an arbitrary object.
     *
     * @param obj  the object (<code>null permitted).
     *
     * @return A boolean.
     */
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof YWithXInterval)) {
            return false;
        }
        YWithXInterval that = (YWithXInterval) obj;
        if (this.y != that.y) {
            return false;
        }
        if (this.xLow != that.xLow) {
            return false;
        }
        if (this.xHigh != that.xHigh) {
            return false;
        }
        return true;
    }

}

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