org.elasticsearch.index.query.CustomBoostFactorQueryBuilder Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon 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.query;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* A query that simply applies the boost factor to another query (multiply it).
*
*
*/
public class CustomBoostFactorQueryBuilder extends BaseQueryBuilder {
private final QueryBuilder queryBuilder;
private float boostFactor = -1;
/**
* A query that simply applies the boost factor to another query (multiply it).
*
* @param queryBuilder The query to apply the boost factor to.
*/
public CustomBoostFactorQueryBuilder(QueryBuilder queryBuilder) {
this.queryBuilder = queryBuilder;
}
/**
* Sets the boost factor for this query.
*/
public CustomBoostFactorQueryBuilder boostFactor(float boost) {
this.boostFactor = boost;
return this;
}
@Override
protected void doXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(CustomBoostFactorQueryParser.NAME);
builder.field("query");
queryBuilder.toXContent(builder, params);
if (boostFactor != -1) {
builder.field("boost_factor", boostFactor);
}
builder.endObject();
}
}