org.elasticsearch.search.sort.ScoreSortBuilder Maven / Gradle / Ivy
/*
* 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.search.sort;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* A sort builder allowing to sort by score.
*
*
*/
public class ScoreSortBuilder extends SortBuilder {
private SortOrder order;
/**
* The order of sort scoring. By default, its {@link SortOrder#DESC}.
*/
@Override
public ScoreSortBuilder order(SortOrder order) {
this.order = order;
return this;
}
@Override
public SortBuilder missing(Object missing) {
return this;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject("_score");
if (order == SortOrder.ASC) {
builder.field("reverse", true);
}
builder.endObject();
return builder;
}
}