content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2009, 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.]
   *
   * ----------------------
   * CategoryRangeInfo.java
   * ----------------------
   * (C) Copyright 2009, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 27-Mar-2009 : Version 1 (DG);
   *
   */
  
  package org.jfree.data.category;
  
  import java.util.List;
  import org.jfree.data.Range;
  
  /**
   * An interface that can (optionally) be implemented by a dataset to assist in
   * determining the minimum and maximum y-values.
   *
   * @since 1.0.13
   */
  public interface CategoryRangeInfo {
  
      /**
       * Returns the range of the values in this dataset's range.
       *
       * @param visibleSeriesKeys  the keys of the visible series.
       * @param includeInterval  a flag that determines whether or not the
       *                         y-interval is taken into account.
       *
       * @return The range (or <code>null</code> if the dataset contains no
       *     values).
       */
      public Range getRangeBounds(List visibleSeriesKeys,
              boolean includeInterval);
  
  }
  