package org.mandarax.util.xmlser;

/*
 * Copyright (C) 1999-2004 <a href="mailto:mandarax@jbdietrich.com">Jens Dietrich</a>
 *
 * 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 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

import java.beans.*;
import org.mandarax.kernel.*;
 
/**
 * Persistence delegate for prerequisites.
 * Used mainly to support object creation by the logic factory.
 * @see org.mandarax.kernel.LogicFactory
 * @author <a HREF="mailto:mandarax@jbdietrich.com">Jens Dietrich</a>
 * @version 3.3.1 <9 August 2004>
 * @since 2.3.1
 */

public class PersistenceDelegate4Prerequisites extends PersistenceDelegate {
	/**
	 * Return an expression to build the object.
	 * @param oldInstance the object to encode
	 * @param encoder the encoder
	 */
	public Expression instantiate(Object oldInstance,Encoder out) {
		Prerequisite p = (Prerequisite)oldInstance;
		return new Expression(
			oldInstance,
			LogicFactory.getDefaultFactory(),
			"createPrerequisite",
			new Object[]{p.getPredicate(),p.getTerms(),Boolean.valueOf(p.isNegatedAF())}
		);		
	}


}
