001/* ---------------------------------------------------------------------------- 002 The Kiwi Toolkit - A Java Class Library 003 Copyright (C) 1998-2004 Mark A. Lindner 004 005 This library is free software; you can redistribute it and/or 006 modify it under the terms of the GNU General Public License as 007 published by the Free Software Foundation; either version 2 of the 008 License, or (at your option) any later version. 009 010 This library is distributed in the hope that it will be useful, 011 but WITHOUT ANY WARRANTY; without even the implied warranty of 012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 General Public License for more details. 014 015 You should have received a copy of the GNU General Public License 016 along with this library; if not, write to the Free Software 017 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 018 02111-1307, USA. 019 020 The author may be contacted at: mark_a_lindner@yahoo.com 021 ---------------------------------------------------------------------------- 022 $Log: DataSample.java,v $ 023 Revision 1.5 2004/05/05 22:24:14 markl 024 comment block updates 025 026 Revision 1.4 2003/01/19 09:33:21 markl 027 Javadoc & comment header updates. 028 029 Revision 1.3 2001/03/12 07:23:29 markl 030 Javadoc cleanup. 031 032 Revision 1.2 2000/10/15 09:40:29 markl 033 Added javadoc and final API polishing. 034 035 Revision 1.1 2000/10/13 02:04:20 markl 036 Added remaining classes, and integrated components with models. 037 ---------------------------------------------------------------------------- 038*/ 039 040package kiwi.ui.graph; 041 042/** A class that represents a data sample. A data sample consists of one or 043 * more variables and their values. These variables correspond to those 044 * defined in a chart definition (<code>Chart</code> object). 045 * 046 * @see kiwi.ui.graph.ChartValue 047 * @see kiwi.ui.graph.Chart 048 * 049 * @author Mark Lindner 050 */ 051 052public interface DataSample 053 { 054 /** Get the value associated with the specified variable. 055 * 056 * @param var The variable name. 057 * @return The value for the variable, or <code>null</code> if the variable 058 * was not found or has no value. 059 */ 060 061 public Object getValue(String var); 062 } 063 064/* end of source file */