/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, 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.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ----------------------------
* IntervalCategoryDataset.java
* ----------------------------
* (C) Copyright 2002-2008, by Eduard Martinescu and Contributors.
*
* Original Author: Eduard Martinescu;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* Changes
* -------
* 19-Mar-2002 : Version 1 contributed by Eduard Martinescu. The interface
* name and method names have been renamed to be consistent with
* existing interfaces (DG);
* 06-Jun-2002 : Updated Javadoc comments (DG);
* 24-Oct-2002 : Categories and series are now indexed by int or Comparable,
* following changes made to the CategoryDataset interface (DG);
* 12-May-2008 : Updated API docs (DG);
*
*/
package org.jfree.data.category;
/**
* A category dataset that defines a value range for each series/category
* combination.
*/
public interface IntervalCategoryDataset extends CategoryDataset {
/**
* Returns the start value for the interval for a given series and category.
*
* @param series the series (zero-based index).
* @param category the category (zero-based index).
*
* @return The start value (possibly <code>null</code>).
*
* @see #getEndValue(int, int)
*/
public Number getStartValue(int series, int category);
/**
* Returns the start value for the interval for a given series and category.
*
* @param series the series key.
* @param category the category key.
*
* @return The start value (possibly <code>null</code>).
*
* @see #getEndValue(Comparable, Comparable)
*/
public Number getStartValue(Comparable series, Comparable category);
/**
* Returns the end value for the interval for a given series and category.
*
* @param series the series (zero-based index).
* @param category the category (zero-based index).
*
* @return The end value (possibly <code>null</code>).
*
* @see #getStartValue(int, int)
*/
public Number getEndValue(int series, int category);
/**
* Returns the end value for the interval for a given series and category.
*
* @param series the series key.
* @param category the category key.
*
* @return The end value (possibly <code>null</code>).
*
* @see #getStartValue(Comparable, Comparable)
*/
public Number getEndValue(Comparable series, Comparable category);
}
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