org.elasticsearch.index.query.functionscore.WeightBuilder Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index.query.functionscore;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.lucene.search.function.ScoreFunction;
import org.elasticsearch.index.query.SearchExecutionContext;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
/**
* A query that multiplies the weight to the score.
*/
public class WeightBuilder extends ScoreFunctionBuilder {
public static final String NAME = "weight";
/**
* Standard constructor.
*/
public WeightBuilder() {}
/**
* Read from a stream.
*/
public WeightBuilder(StreamInput in) throws IOException {
super(in);
}
@Override
protected void doWriteTo(StreamOutput out) throws IOException {}
@Override
public String getName() {
return NAME;
}
@Override
protected void doXContent(XContentBuilder builder, Params params) throws IOException {}
@Override
protected boolean doEquals(WeightBuilder functionBuilder) {
return true;
}
@Override
protected int doHashCode() {
return 0;
}
@Override
protected ScoreFunction doToFunction(SearchExecutionContext context) throws IOException {
// nothing to do here, weight will be applied by the parent class, no score function
return null;
}
}