org.elasticsearch.index.mapper.TermBasedFieldType Maven / Gradle / Ivy
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Elasticsearch subproject :server
/*
* 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.mapper;
import java.util.List;
import org.apache.lucene.index.Term;
import org.apache.lucene.queries.TermsQuery;
import org.apache.lucene.search.BoostQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.Version;
import org.elasticsearch.common.lucene.BytesRefs;
import org.elasticsearch.index.query.QueryShardContext;
/** Base {@link MappedFieldType} implementation for a field that is indexed
* with the inverted index. */
abstract class TermBasedFieldType extends MappedFieldType {
public TermBasedFieldType() {}
protected TermBasedFieldType(MappedFieldType ref) {
super(ref);
}
/** Returns the indexed value used to construct search "values".
* This method is used for the default implementations of most
* query factory methods such as {@link #termQuery}. */
protected BytesRef indexedValueForSearch(Object value) {
return BytesRefs.toBytesRef(value);
}
@Override
public Query termQuery(Object value, QueryShardContext context) {
failIfNotIndexed();
TermQuery query = new TermQuery(new Term(name(), indexedValueForSearch(value)));
if (boost() == 1f ||
(context != null && context.indexVersionCreated().before(Version.V_5_0_0_alpha1))) {
return query;
}
return new BoostQuery(query, boost());
}
@Override
public Query termsQuery(List values, QueryShardContext context) {
failIfNotIndexed();
BytesRef[] bytesRefs = new BytesRef[values.size()];
for (int i = 0; i < bytesRefs.length; i++) {
bytesRefs[i] = indexedValueForSearch(values.get(i));
}
return new TermsQuery(name(), bytesRefs);
}
}