jfreechart example source code file (XIntervalDataItem.java)

This example jfreechart source code file (XIntervalDataItem.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

comparableobjectitem, double, double, number, number, xintervaldataitem, xintervaldataitem, ywithxinterval, ywithxinterval

The jfreechart XIntervalDataItem.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.]
 *
 * ----------------------
 * XIntervalDataItem.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 org.jfree.data.ComparableObjectItem;

/**
 * An item representing data in the form (x, x-low, x-high, y).
 *
 * @since 1.0.3
 */
public class XIntervalDataItem extends ComparableObjectItem {

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

    /**
     * Returns the x-value.
     *
     * @return The x-value (never <code>null).
     */
    public Number getX() {
        return (Number) getComparable();
    }

    /**
     * Returns the y-value.
     *
     * @return The y-value.
     */
    public double getYValue() {
        YWithXInterval interval = (YWithXInterval) getObject();
        if (interval != null) {
            return interval.getY();
        }
        else {
            return Double.NaN;
        }
    }

    /**
     * Returns the lower bound of the x-interval.
     *
     * @return The lower bound of the x-interval.
     */
    public double getXLowValue() {
        YWithXInterval interval = (YWithXInterval) getObject();
        if (interval != null) {
            return interval.getXLow();
        }
        else {
            return Double.NaN;
        }
    }

    /**
     * Returns the upper bound of the x-interval.
     *
     * @return The upper bound of the x-interval.
     */
    public double getXHighValue() {
        YWithXInterval interval = (YWithXInterval) getObject();
        if (interval != null) {
            return interval.getXHigh();
        }
        else {
            return Double.NaN;
        }
    }

}