/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.similarity;
import org.apache.lucene.search.similarities.BooleanSimilarity;
import org.elasticsearch.common.settings.Settings;
/**
* {@link SimilarityProvider} for the {@link BooleanSimilarity},
* which is a simple similarity that gives terms a score equal
* to their query boost only. This is useful in situations where
* a field does not need to be scored by a full-text ranking
* algorithm, but rather all that matters is whether the query
* terms matched or not.
*/
public class BooleanSimilarityProvider extends AbstractSimilarityProvider {
private final BooleanSimilarity similarity = new BooleanSimilarity();
public BooleanSimilarityProvider(String name, Settings settings, Settings indexSettings) {
super(name);
}
/**
* {@inheritDoc}
*/
@Override
public BooleanSimilarity get() {
return similarity;
}
}