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/*

Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

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()}.
 * 
 *  * (?z, rdf:type, ?b ) :-
 *       (?x, ?y, ?z),
 *       (?y, rdfs:subPropertyOf, ?a),
 *       (?a, rdfs:range, ?b ).
 * 
 * 
 * @author Bryan Thompson
 * @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")))
                });
        
    }
    
}