    001    /* ===========================================================
    002     * JFreeChart : a free chart library for the Java(tm) platform
    003     * ===========================================================
    004     *
    005     * (C) Copyright 2000-2011, 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     * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
    025     * Other names may be trademarks of their respective owners.]
    026     *
    027     * -------------------
    028     * TableXYDataset.java
    029     * -------------------
    030     * (C) Copyright 2000-2008, by Richard Atkinson and Contributors.
    031     *
    032     * Original Author:  Richard Atkinson;
    033     * Contributor(s):   David Gilbert (for Object Refinery Limited);
    034     *
    035     * Changes
    036     * -------
    037     * 22-Sep-2003 : Changed to be an interface.  Previous functionality moved to
    038     *               DefaultTableXYDataset;
    039     * 16-Feb-2004 : Updated Javadocs (DG);
    040     *
    041     */
    042
    043    package org.jfree.data.xy;
    044
    045
    046    /**
    047     * A dataset containing one or more data series containing (x, y) data items,
    048     * where all series in the dataset share the same set of x-values.  This is a
    049     * restricted form of the {@link XYDataset} interface (which allows independent
    050     * x-values between series). This is used primarily by the
    051     * {@link org.jfree.chart.renderer.xy.StackedXYAreaRenderer}.
    052     */
    053    public interface TableXYDataset extends XYDataset {
    054
    055        /**
    056         * Returns the number of items every series.
    057         *
    058         * @return The item count.
    059         */
    060        public int getItemCount();
    061
    062    }