001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2007, 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 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025 * in the United States and other countries.]
026 *
027 * -----------------------
028 * IntervalXYZDataset.java
029 * -----------------------
030 * (C) Copyright 2001-2007, by Object Refinery Limited.
031 *
032 * Original Author:  David Gilbert (for Object Refinery Limited);
033 * Contributor(s):   -;
034 *
035 * Changes
036 * -------
037 * 31-Oct-2001 : Version 1 (DG);
038 *
039 */
040
041package org.jfree.data.xy;
042
043
044/**
045 * An extension of the {@link XYZDataset} interface that allows a range of data 
046 * to be defined for any of the X values, the Y values, and the Z values.
047 */
048public interface IntervalXYZDataset extends XYZDataset {
049
050    /**
051     * Returns the starting X value for the specified series and item.
052     *
053     * @param series  the series (zero-based index).
054     * @param item  the item within a series (zero-based index).
055     *
056     * @return The starting X value for the specified series and item.
057     */
058    public Number getStartXValue(int series, int item);
059
060    /**
061     * Returns the ending X value for the specified series and item.
062     *
063     * @param series  the series (zero-based index).
064     * @param item  the item within a series (zero-based index).
065     *
066     * @return The ending X value for the specified series and item.
067     */
068    public Number getEndXValue(int series, int item);
069
070    /**
071     * Returns the starting Y value for the specified series and item.
072     *
073     * @param series  the series (zero-based index).
074     * @param item  the item within a series (zero-based index).
075     *
076     * @return The starting Y value for the specified series and item.
077     */
078    public Number getStartYValue(int series, int item);
079
080    /**
081     * Returns the ending Y value for the specified series and item.
082     *
083     * @param series  the series (zero-based index).
084     * @param item  the item within a series (zero-based index).
085     *
086     * @return The ending Y value for the specified series and item.
087     */
088    public Number getEndYValue(int series, int item);
089
090    /**
091     * Returns the starting Z value for the specified series and item.
092     *
093     * @param series  the series (zero-based index).
094     * @param item  the item within a series (zero-based index).
095     *
096     * @return The starting Z value for the specified series and item.
097     */
098    public Number getStartZValue(int series, int item);
099
100    /**
101     * Returns the ending Z value for the specified series and item.
102     *
103     * @param series  the series (zero-based index).
104     * @param item  the item within a series (zero-based index).
105     *
106     * @return The ending Z value for the specified series and item.
107     */
108    public Number getEndZValue(int series, int item);
109
110}