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Java > Open Source Codes > org > jfree > data > Value


1 /* ===========================================================
2  * JFreeChart : a free chart library for the Java(tm) platform
3  * ===========================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jfreechart/index.html
8  *
9  * This library is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17  * License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public License
20  * along with this library; if not, write to the Free Software Foundation,
21  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
24  * in the United States and other countries.]
25  *
26  * ----------
27  * Value.java
28  * ----------
29  * (C) Copyright 2002-2004, by Object Refinery Limited.
30  *
31  * Original Author: David Gilbert (for Object Refinery Limited);
32  * Contributor(s): -;
33  *
34  * $Id: Value.java,v 1.2 2005/03/28 19:40:26 mungady Exp $
35  *
36  * Changes:
37  * --------
38  * 28-Oct-2002 : Version 1 (DG);
39  * 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.base (DG);
40  *
41  */
42
43 package org.jfree.data;
44
45 /**
46  * A general purpose interface for accessing a value.
47  */
48 public interface Value {
49
50     /**
51      * Returns the value.
52      *
53      * @return The value (possibly <code>null</code>).
54      */
55     public Number JavaDoc getValue();
56
57 }
58
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