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ARQ is a SPARQL 1.1 query engine for Apache Jena

There is a newer version: 5.1.0

/*
 * 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.graph;

import java.util.Iterator ;

import org.apache.jena.graph.Graph ;
import org.apache.jena.graph.Node ;
import org.apache.jena.graph.Triple ;

class FindableGraph implements Findable
{
    private Graph graph ;

    FindableGraph(Graph graph) { this.graph = graph ; }

    @Override
    public Iterator find(Node s, Node p, Node o)
    {
        if ( s == null ) s = Node.ANY ;
        if ( p == null ) p = Node.ANY ;
        if ( o == null ) o = Node.ANY ;
        return graph.find(s, p ,o) ;
    }

    @Override
    public boolean contains(Node s, Node p, Node o)
    {
        if ( s == null ) s = Node.ANY ;
        if ( p == null ) p = Node.ANY ;
        if ( o == null ) o = Node.ANY ;
        return graph.contains(s, p, o) ;
    }
}