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


1 /* ======================================
2  * JFreeChart : a free Java chart library
3  * ======================================
4  *
5  * Project Info: http://www.jfree.org/jfreechart/index.html
6  * Project Lead: David Gilbert (david.gilbert@object-refinery.com);
7  *
8  * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
9  *
10  * This library is free software; you can redistribute it and/or modify it under the terms
11  * of the GNU Lesser General Public License as published by the Free Software Foundation;
12  * either version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  * See the GNU Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public License along with this library;
19  * if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307, USA.
21  *
22  * -----------------
23  * DatasetGroup.java
24  * -----------------
25  * (C) Copyright 2002, 2003, by Object Refinery Limited.
26  *
27  * Original Author: David Gilbert (for Object Refinery Limited);
28  * Contributor(s): -;
29  *
30  * $Id: DatasetGroup.java,v 1.4 2003/09/03 15:08:51 mungady Exp $
31  *
32  * Changes
33  * -------
34  * 07-Oct-2002 : Version 1 (DG);
35  * 26-Mar-2003 : Implemented Serializable (DG);
36  * 20-Aug-2003 : Implemented Cloneable (DG);
37  *
38  */
39
40 package org.jfree.data;
41
42 import java.io.Serializable JavaDoc;
43
44 /**
45  * A class that is used to group datasets. The main purpose of this is to implement a
46  * shared reader-writer lock among all datasets in the group.
47  *
48  * @author David Gilbert
49  */
50 public class DatasetGroup implements Cloneable JavaDoc, Serializable JavaDoc {
51
52     /**
53      * Constructs a new DatasetGroup.
54      */
55     public DatasetGroup() {
56     }
57
58     /**
59      * Clones the group.
60      *
61      * @return A clone.
62      *
63      * @throws CloneNotSupportedException not by this class.
64      */
65     public Object JavaDoc clone() throws CloneNotSupportedException JavaDoc {
66         return super.clone();
67     }
68     
69 }
70
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