001    /* ===========================================================
002     * JFreeChart : a free chart library for the Java(tm) platform
003     * ===========================================================
004     *
005     * (C) Copyright 2000-2005, 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 2001-2004, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   -;
034     *
035     * $Id: IntervalXYZDataset.java,v 1.2.2.1 2005/10/25 21:36:51 mungady Exp $
036     *
037     * Changes
038     * -------
039     * 31-Oct-2001 : Version 1 (DG);
040     *
041     */
042    
043    package org.jfree.data.xy;
044    
045    
046    /**
047     * An extension of the {@link XYZDataset} interface that allows a range of data 
048     * to be defined for any of the X values, the Y values, and the Z values.
049     */
050    public interface IntervalXYZDataset extends XYZDataset {
051    
052        /**
053         * Returns the starting X value for the specified series and item.
054         *
055         * @param series  the series (zero-based index).
056         * @param item  the item within a series (zero-based index).
057         *
058         * @return The starting X value for the specified series and item.
059         */
060        public Number getStartXValue(int series, int item);
061    
062        /**
063         * Returns the ending X value for the specified series and item.
064         *
065         * @param series  the series (zero-based index).
066         * @param item  the item within a series (zero-based index).
067         *
068         * @return The ending X value for the specified series and item.
069         */
070        public Number getEndXValue(int series, int item);
071    
072        /**
073         * Returns the starting Y value for the specified series and item.
074         *
075         * @param series  the series (zero-based index).
076         * @param item  the item within a series (zero-based index).
077         *
078         * @return The starting Y value for the specified series and item.
079         */
080        public Number getStartYValue(int series, int item);
081    
082        /**
083         * Returns the ending Y value for the specified series and item.
084         *
085         * @param series  the series (zero-based index).
086         * @param item  the item within a series (zero-based index).
087         *
088         * @return The ending Y value for the specified series and item.
089         */
090        public Number getEndYValue(int series, int item);
091    
092        /**
093         * Returns the starting Z value for the specified series and item.
094         *
095         * @param series  the series (zero-based index).
096         * @param item  the item within a series (zero-based index).
097         *
098         * @return The starting Z value for the specified series and item.
099         */
100        public Number getStartZValue(int series, int item);
101    
102        /**
103         * Returns the ending Z value for the specified series and item.
104         *
105         * @param series  the series (zero-based index).
106         * @param item  the item within a series (zero-based index).
107         *
108         * @return The ending Z value for the specified series and item.
109         */
110        public Number getEndZValue(int series, int item);
111    
112    }