/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -----------------------
* CombinationDataset.java
* -----------------------
* (C) Copyright 2001-2007, by Bill Kelemen.
*
* Original Author: Bill Kelemen;
* Contributor(s): -;
*
* Changes
* -------
* 06-Dec-2001 : Version 1 (BK);
* ------------- JFREECHART 1.0.x ---------------------------------------------
* 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG);
*
*/
package org.jfree.data.general;
/**
* Interface that describes the new methods that any combined dataset needs to
* implement. A combined dataset object will combine one or more datasets and
* expose a sub-set or union of the combined datasets.
*/
public interface CombinationDataset {
///////////////////////////////////////////////////////////////////////////
// New methods from CombinationDataset
///////////////////////////////////////////////////////////////////////////
/**
* Returns the parent Dataset of this combination. If there is more than
* one parent, or a child is found that is not a combination, then returns
* <code>null</code>.
*
* @return The parent Dataset of this combination.
*/
public SeriesDataset getParent();
/**
* Returns a map or indirect indexing form our series into parent's series.
*
* @return A map or indirect indexing form our series into parent's series.
*/
public int[] getMap();
}
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