/**
 * ***************************************************************
 * JADE - Java Agent DEvelopment Framework is a framework to develop
 * multi-agent systems in compliance with the FIPA specifications.
 * Copyright (C) 2000 CSELT S.p.A.
 * 
 * GNU Lesser General Public License
 * 
 * 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,
 * version 2.1 of the License.
 * 
 * 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.
 * **************************************************************
 */
package jade.content.schema.facets;

import jade.content.abs.AbsObject;
import jade.content.onto.Ontology;
import jade.content.onto.OntologyException;
import jade.content.schema.Facet;

/**
 * This facet set the default value of an AbsObject.
 */
public class DefaultValueFacet implements Facet {
	private Object defaultValue;

	/**
	   Construct a <code>DefaultValueFacet</code> that 
	   set the default value of an AbsObject
	 */
	public DefaultValueFacet(Object defaultValue) {
		this.defaultValue = defaultValue;
	}

	/**
	  Get the default value associated to this facet
	*/
	public Object getDefaultValue() {
		return defaultValue;
	}

	/**
	   Check whether a given value for the slot this Facet applies
	   to is valid.
	   @param value The value to be checked
	   @throws OntologyException If the value is not valid
	 */
	public void validate(AbsObject value, Ontology onto) throws OntologyException {
	}
}