001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-present, by David Gilbert 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-present, by Richard Atkinson and Contributors.
031 *
032 * Original Author:  Richard Atkinson;
033 * Contributor(s):   David Gilbert;
034 *
035 */
036
037package org.jfree.data.xy;
038
039
040/**
041 * A dataset containing one or more data series containing (x, y) data items,
042 * where all series in the dataset share the same set of x-values.  This is a
043 * restricted form of the {@link XYDataset} interface (which allows independent
044 * x-values between series). This is used primarily by the
045 * {@link org.jfree.chart.renderer.xy.StackedXYAreaRenderer}.
046 */
047public interface TableXYDataset extends XYDataset {
048
049    /**
050     * Returns the number of items every series.
051     *
052     * @return The item count.
053     */
054    int getItemCount();
055
056}