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/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.search.sort;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* A sort builder allowing to sort by score.
*
* @author kimchy (shay.banon)
*/
public class ScoreSortBuilder extends SortBuilder {
private SortOrder order;
/**
* The order of sort scoring. By default, its {@link SortOrder#DESC}.
*/
public ScoreSortBuilder order(SortOrder order) {
this.order = order;
return this;
}
@Override public void toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject("_score");
if (order == SortOrder.ASC) {
builder.field("reverse", true);
}
builder.endObject();
}
}