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- /* ========================================================================
- * JCommon : a free general purpose class library for the Java(tm) platform
- * ========================================================================
- *
- * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
- *
- * Project Info: http://www.jfree.org/jcommon/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.]
- *
- * -------------------
- * AnnualDateRule.java
- * -------------------
- * (C) Copyright 2000-2003, by Object Refinery Limited.
- *
- * Original Author: David Gilbert (for Object Refinery Limited);
- * Contributor(s): -;
- *
- * $Id: AnnualDateRule.java,v 1.4 2005/11/16 15:58:40 taqua Exp $
- *
- * Changes (from 26-Oct-2001)
- * --------------------------
- * 26-Oct-2001 : Changed package to com.jrefinery.date.* (DG);
- * 12-Nov-2001 : Javadoc comments updated (DG);
- * 03-Oct-2002 : Fixed errors reported by Checkstyle (DG);
- *
- */
- package org.jfree.date;
- /**
- * The base class for all 'annual' date rules: that is, rules for generating
- * one date for any given year.
- * <P>
- * One example is Easter Sunday (which can be calculated using published algorithms).
- *
- * @author David Gilbert
- */
- public abstract class AnnualDateRule implements Cloneable {
- /**
- * Default constructor.
- */
- protected AnnualDateRule() {
- }
- /**
- * Returns the date for this rule, given the year.
- *
- * @param year the year (1900 <= year <= 9999).
- *
- * @return the date for this rule, given the year.
- */
- public abstract SerialDate getDate(int year);
- /**
- * Returns a clone of the rule.
- * <P>
- * You should refer to the documentation of the clone() method in each
- * subclass for exact details.
- *
- * @return a clone of the rule.
- *
- * @throws CloneNotSupportedException if the rule is not clonable.
- */
- public Object clone() throws CloneNotSupportedException {
- return super.clone();
- }
- }
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