/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.sparql.util;

import org.apache.jena.graph.Node ;
import org.apache.jena.sparql.core.Var ;

public class NodeToLabelMapBNode extends NodeToLabelMap
{
    public NodeToLabelMapBNode() { this("b", false) ; }
    
    public NodeToLabelMapBNode(String prefix, boolean bNodesAsFakeURIs)
    {
        super(prefix, bNodesAsFakeURIs) ;
    }
    
    @Override
    public String asString(Node n)
    {
        // Map blank nodes and non-distinguished variables.
        if ( ! n.isBlank() && !Var.isBlankNodeVar(n) )
            return null ;

        return mapNode(n) ;
    }
}
