jfreechart example source code file (YIntervalSeries.java)

This example jfreechart source code file (YIntervalSeries.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, comparableobjectitem, comparableobjectseries, comparableobjectseries, number, yintervaldataitem, yintervaldataitem, yintervalseries, yintervalseries

The jfreechart YIntervalSeries.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.]
 *
 * --------------------
 * YIntervalSeries.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);
 * 20-Feb-2007 : Added getYHighValue() and getYLowValue() methods (DG);
 *
 */

package org.jfree.data.xy;

import org.jfree.data.ComparableObjectItem;
import org.jfree.data.ComparableObjectSeries;

/**
 * A list of (x, y, y-low, y-high) data items.
 *
 * @since 1.0.3
 *
 * @see YIntervalSeriesCollection
 */
public class YIntervalSeries extends ComparableObjectSeries {

    /**
     * Creates a new empty series.  By default, items added to the series will
     * be sorted into ascending order by x-value, and duplicate x-values will
     * be allowed (these defaults can be modified with another constructor.
     *
     * @param key  the series key (<code>null not permitted).
     */
    public YIntervalSeries(Comparable key) {
        this(key, true, true);
    }

    /**
     * Constructs a new xy-series that contains no data.  You can specify
     * whether or not duplicate x-values are allowed for the series.
     *
     * @param key  the series key (<code>null not permitted).
     * @param autoSort  a flag that controls whether or not the items in the
     *                  series are sorted.
     * @param allowDuplicateXValues  a flag that controls whether duplicate
     *                               x-values are allowed.
     */
    public YIntervalSeries(Comparable key, boolean autoSort,
            boolean allowDuplicateXValues) {
        super(key, autoSort, allowDuplicateXValues);
    }

    /**
     * Adds a data item to the series.
     *
     * @param x  the x-value.
     * @param y  the y-value.
     * @param yLow  the lower bound of the y-interval.
     * @param yHigh  the upper bound of the y-interval.
     */
    public void add(double x, double y, double yLow, double yHigh) {
        super.add(new YIntervalDataItem(x, y, yLow, yHigh), true);
    }

    /**
     * Returns the x-value for the specified item.
     *
     * @param index  the item index.
     *
     * @return The x-value (never <code>null).
     */
    public Number getX(int index) {
        YIntervalDataItem item = (YIntervalDataItem) getDataItem(index);
        return item.getX();
    }

    /**
     * Returns the y-value for the specified item.
     *
     * @param index  the item index.
     *
     * @return The y-value.
     */
    public double getYValue(int index) {
        YIntervalDataItem item = (YIntervalDataItem) getDataItem(index);
        return item.getYValue();
    }

    /**
     * Returns the lower bound of the Y-interval for the specified item in the
     * series.
     *
     * @param index  the item index.
     *
     * @return The lower bound of the Y-interval.
     *
     * @since 1.0.5
     */
    public double getYLowValue(int index) {
        YIntervalDataItem item = (YIntervalDataItem) getDataItem(index);
        return item.getYLowValue();
    }

    /**
     * Returns the upper bound of the y-interval for the specified item in the
     * series.
     *
     * @param index  the item index.
     *
     * @return The upper bound of the y-interval.
     *
     * @since 1.0.5
     */
    public double getYHighValue(int index) {
        YIntervalDataItem item = (YIntervalDataItem) getDataItem(index);
        return item.getYHighValue();
    }

    /**
     * Returns the data item at the specified index.
     *
     * @param index  the item index.
     *
     * @return The data item.
     */
    public ComparableObjectItem getDataItem(int index) {
        return super.getDataItem(index);
    }

}