/*
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
*/
package com.bigdata.rdf.rules;
import org.openrdf.model.vocabulary.RDF;
import org.openrdf.model.vocabulary.RDFS;
import com.bigdata.bop.IConstraint;
import com.bigdata.bop.constraint.Constraint;
import com.bigdata.bop.constraint.NE;
import com.bigdata.rdf.spo.SPOPredicate;
import com.bigdata.rdf.vocab.Vocabulary;
/**
* Rule for step 13 of {@link InferenceEngine#fastForwardClosure()}.
*
* <pre>
* (?z, rdf:type, ?b ) :-
* (?x, ?y, ?z),
* (?y, rdfs:subPropertyOf, ?a),
* (?a, rdfs:range, ?b ).
* </pre>
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class RuleFastClosure13 extends AbstractRuleFastClosure_11_13 {
/**
*
*/
private static final long serialVersionUID = -2159515669069118668L;
/**
* @param vocab
*/
public RuleFastClosure13(String relationName,Vocabulary vocab) {
super( "fastClosure13",//
new SPOPredicate(relationName,var("z"), vocab.getConstant(RDF.TYPE), var("b")),//
new SPOPredicate[] {//
new SPOPredicate(relationName,var("x"), var("y"), var("z")),//
new SPOPredicate(relationName,var("y"), vocab.getConstant(RDFS.SUBPROPERTYOF), var("a")),//
new SPOPredicate(relationName,var("a"), vocab.getConstant(RDFS.RANGE), var("b"))//
},
new IConstraint[] {
Constraint.wrap(new NE(var("y"),var("a")))
});
}
}