/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Nov 1, 2007
*/
package com.bigdata.rdf.rules;
import org.openrdf.model.vocabulary.OWL;
import com.bigdata.bop.IConstraint;
import com.bigdata.bop.constraint.Constraint;
import com.bigdata.bop.constraint.NE;
import com.bigdata.bop.constraint.NEConstant;
import com.bigdata.rdf.spo.SPOPredicate;
import com.bigdata.rdf.vocab.Vocabulary;
import com.bigdata.relation.rule.Rule;
/**
* owl:sameAs3
*
* <pre>
* (x owl:sameAs y), (z a x) -> (z a y).
* </pre>
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class RuleOwlSameAs3 extends Rule {
/**
*
*/
private static final long serialVersionUID = -8182152612151810691L;
public RuleOwlSameAs3(String relationName, Vocabulary vocab) {
super( "owlSameAs3", //
new SPOPredicate(relationName,var("z"), var("a"), var("y")), //
new SPOPredicate[] { //
new SPOPredicate(relationName,var("x"), vocab.getConstant(OWL.SAMEAS), var("y")),//
new SPOPredicate(relationName,var("z"), var("a"), var("x"))//
},
new IConstraint[] {
/*
* Reject (z sameAs y) as the head.
*/
// new RejectAnythingSameAsItself(var("z"),var("a"),var("y"),vocab.getConstant(OWL.SAMEAS))
Constraint.wrap(new NEConstant(var("a"),vocab.getConstant(OWL.SAMEAS))),
Constraint.wrap(new NE(var("x"),var("y")))
}
);
}
}