querynodefactorybase.java

Jena推理机

/*
 	(c) Copyright 2005, 2006, 2007 Hewlett-Packard Development Company, LP
 	All rights reserved - see end of file.
 	$Id: QueryNodeFactoryBase.java,v 1.3 2007/01/02 11:49:45 andy_seaborne Exp $
*/

package com.hp.hpl.jena.graph.query;

import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.graph.query.QueryNode.*;
import com.hp.hpl.jena.graph.query.QueryNode.Bind;
import com.hp.hpl.jena.graph.query.QueryNode.Bound;
import com.hp.hpl.jena.graph.query.QueryNode.Fixed;

/**
    A base-level implementation of the QueryNodeFactory that uses the
    QueryNode/QueryTriple classes directly.
    
    @author kers
*/
public class QueryNodeFactoryBase implements QueryNodeFactory
    {
    public QueryNode createAny()
        { return new Any(); }
    
    public QueryNode createFixed( Node n )
        { return new Fixed( n ); }
    
    public QueryNode createBind( Node node, int i )
        { return new Bind( node, i ); }
    
    public QueryNode createJustBound( Node node, int i )
        { return new JustBound( node, i ); }
    
    public QueryNode createBound( Node node, int i )
        { return new Bound( node, i ); }
    
    public QueryTriple createTriple( QueryNode S, QueryNode P, QueryNode O )
        { return new QueryTriple( S, P, O ); }
    
    public QueryTriple [] createArray( int size )
        { return new QueryTriple [size]; }
    }

/*
 * (c) Copyright 2005, 2006, 2007 Hewlett-Packard Development Company, LP
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/