001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2013, 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 * XisSymbolic.java
029 * ----------------
030 * (C) Copyright 2006-2008, by Anthony Boulestreau and Contributors.
031 *
032 * Original Author:  Anthony Boulestreau;
033 * Contributor(s):   David Gilbert (for Object Refinery Limited);
034 *
035 * Changes
036 * -------
037 * 29-Mar-2002 : First version (AB);
038 * 07-Oct-2002 : Fixed errors reported by Checkstyle (DG);
039 * 02-Feb-2007 : Removed author tags all over JFreeChart sources (DG);
040 *
041 */
042
043package org.jfree.data.xy;
044
045/**
046 * Represent a data set where X is a symbolic values. Each symbolic value is
047 * linked with an Integer.
048 */
049public interface XisSymbolic {
050
051    /**
052     * Returns the list of symbolic values.
053     *
054     * @return An array of symbolic values.
055     */
056    public String[] getXSymbolicValues();
057
058    /**
059     * Returns the symbolic value of the data set specified by
060     * {@code series} and {@code item} parameters.
061     *
062     * @param series  value of the serie.
063     * @param item  value of the item.
064     *
065     * @return The symbolic value.
066     */
067    public String getXSymbolicValue(int series, int item);
068
069    /**
070     * Returns the symbolic value linked with the specified {@code Integer}.
071     *
072     * @param val  value of the integer linked with the symbolic value.
073     *
074     * @return The symbolic value.
075     */
076    public String getXSymbolicValue(Integer val);
077
078}