01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jfreechart/index.html
08: *
09: * 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
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * -----------------------
28: * CombinationDataset.java
29: * -----------------------
30: * (C) Copyright 2001-2007, by Bill Kelemen.
31: *
32: * Original Author: Bill Kelemen;
33: * Contributor(s): -;
34: *
35: * $Id: CombinationDataset.java,v 1.2.2.2 2007/02/02 15:50:44 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 06-Dec-2001 : Version 1 (BK);
40: * ------------- JFREECHART 1.0.x ---------------------------------------------
41: * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG);
42: *
43: */
44:
45: package org.jfree.data.general;
46:
47: /**
48: * Interface that describes the new methods that any combined dataset needs to
49: * implement. A combined dataset object will combine one or more datasets and
50: * expose a sub-set or union of the combined datasets.
51: */
52: public interface CombinationDataset {
53:
54: ///////////////////////////////////////////////////////////////////////////
55: // New methods from CombinationDataset
56: ///////////////////////////////////////////////////////////////////////////
57:
58: /**
59: * Returns the parent Dataset of this combination. If there is more than
60: * one parent, or a child is found that is not a combination, then returns
61: * <code>null</code>.
62: *
63: * @return The parent Dataset of this combination.
64: */
65: public SeriesDataset getParent();
66:
67: /**
68: * Returns a map or indirect indexing form our series into parent's series.
69: *
70: * @return A map or indirect indexing form our series into parent's series.
71: */
72: public int[] getMap();
73:
74: }
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