/*
* 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.graph;
import org.apache.jena.atlas.data.BagFactory ;
import org.apache.jena.atlas.data.DataBag ;
import org.apache.jena.atlas.data.ThresholdPolicy ;
import org.apache.jena.graph.Triple ;
import org.apache.jena.riot.system.SerializationFactoryFinder ;
import org.apache.jena.sparql.util.TripleComparator ;
/**
* An implementation of {@link GraphDataBag} with a guarantee that there will be no duplicate triples in the find() operation.
*/
public class GraphDistinctDataBag extends GraphDataBag
{
public GraphDistinctDataBag(ThresholdPolicy<Triple> thresholdPolicy)
{
super(thresholdPolicy) ;
}
@Override
protected DataBag<Triple> createDataBag()
{
return BagFactory.newDistinctBag(getThresholdPolicy(), SerializationFactoryFinder.tripleSerializationFactory(), new TripleComparator()) ;
}
}