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jfreechart example source code file (IntervalCategoryDataset.java)

This example jfreechart source code file (IntervalCategoryDataset.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

categorydataset, categorydataset, comparable, comparable, intervalcategorydataset, intervalcategorydataset, number, number

The jfreechart IntervalCategoryDataset.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.]
 *
 * ----------------------------
 * IntervalCategoryDataset.java
 * ----------------------------
 * (C) Copyright 2002-2008, by Eduard Martinescu and Contributors.
 *
 * Original Author:  Eduard Martinescu;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * Changes
 * -------
 * 19-Mar-2002 : Version 1 contributed by Eduard Martinescu.  The interface
 *               name and method names have been renamed to be consistent with
 *               existing interfaces (DG);
 * 06-Jun-2002 : Updated Javadoc comments (DG);
 * 24-Oct-2002 : Categories and series are now indexed by int or Comparable,
 *               following changes made to the CategoryDataset interface (DG);
 * 12-May-2008 : Updated API docs (DG);
 *
 */

package org.jfree.data.category;

/**
 * A category dataset that defines a value range for each series/category
 * combination.
 */
public interface IntervalCategoryDataset extends CategoryDataset {

    /**
     * Returns the start value for the interval for a given series and category.
     *
     * @param series  the series (zero-based index).
     * @param category  the category (zero-based index).
     *
     * @return The start value (possibly <code>null).
     *
     * @see #getEndValue(int, int)
     */
    public Number getStartValue(int series, int category);

    /**
     * Returns the start value for the interval for a given series and category.
     *
     * @param series  the series key.
     * @param category  the category key.
     *
     * @return The start value (possibly <code>null).
     *
     * @see #getEndValue(Comparable, Comparable)
     */
    public Number getStartValue(Comparable series, Comparable category);

    /**
     * Returns the end value for the interval for a given series and category.
     *
     * @param series  the series (zero-based index).
     * @param category  the category (zero-based index).
     *
     * @return The end value (possibly <code>null).
     *
     * @see #getStartValue(int, int)
     */
    public Number getEndValue(int series, int category);

    /**
     * Returns the end value for the interval for a given series and category.
     *
     * @param series  the series key.
     * @param category  the category key.
     *
     * @return The end value (possibly <code>null).
     *
     * @see #getStartValue(Comparable, Comparable)
     */
    public Number getEndValue(Comparable series, Comparable category);

}

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