/* ===========================================================
* 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.]
*
* ---------------
* DomainInfo.java
* ---------------
* (C) Copyright 2000-2009, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes (from 18-Sep-2001)
* --------------------------
* 18-Sep-2001 : Added standard header and fixed DOS encoding problem (DG);
* 15-Nov-2001 : Moved to package com.jrefinery.data.* (DG);
* Updated Javadoc comments (DG);
* 22-Apr-2002 : Added getValueRange() method (DG);
* 12-Jul-2002 : Renamed getValueRange() --> getDomainRange() (DG);
* 06-Oct-2004 : Renamed getDomainRange() --> getDomainBounds() (DG);
* 17-Nov-2004 : Added 'includeInterval' argument to all methods (DG);
* 11-Jan-2005 : Removed deprecated code in preparation for the 1.0.0
* release (DG);
*
*/
package org.jfree.data;
/**
* An interface (optional) that can be implemented by a dataset to assist in
* determining the minimum and maximum values.
*/
public interface DomainInfo {
/**
* Returns the minimum x-value in the dataset.
*
* @param includeInterval a flag that determines whether or not the
* x-interval is taken into account.
*
* @return The minimum value.
*/
public double getDomainLowerBound(boolean includeInterval);
/**
* Returns the maximum x-value in the dataset.
*
* @param includeInterval a flag that determines whether or not the
* x-interval is taken into account.
*
* @return The maximum value.
*/
public double getDomainUpperBound(boolean includeInterval);
/**
* Returns the range of the values in this dataset's domain.
*
* @param includeInterval a flag that determines whether or not the
* x-interval is taken into account.
*
* @return The range (or <code>null</code> if the dataset contains no
* values).
*/
public Range getDomainBounds(boolean includeInterval);
}
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