org.elasticsearch.script.NumberSortScript Maven / Gradle / Ivy
/*
* 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.script;
import org.elasticsearch.search.lookup.SearchLookup;
import java.io.IOException;
import java.util.Map;
public abstract class NumberSortScript extends AbstractSortScript {
public static final String[] PARAMETERS = {};
public static final ScriptContext CONTEXT = new ScriptContext<>("number_sort", Factory.class);
public NumberSortScript(Map params, SearchLookup searchLookup, DocReader docReader) {
// searchLookup is used taken in for compatibility with expressions. See ExpressionScriptEngine.newScoreScript and
// ExpressionScriptEngine.getDocValueSource for where it's used.
super(params, docReader);
}
protected NumberSortScript() {
super();
}
public abstract double execute();
/**
* A factory to construct {@link NumberSortScript} instances.
*/
public interface LeafFactory {
NumberSortScript newInstance(DocReader reader) throws IOException;
/**
* Return {@code true} if the script needs {@code _score} calculated, or {@code false} otherwise.
*/
boolean needs_score();
}
/**
* A factory to construct stateful {@link NumberSortScript} factories for a specific index.
*/
public interface Factory extends ScriptFactory {
// searchLookup is needed for **expressions-only** to look up bindings. Painless callers should use the DocReader
// in LeafFactory.newInstance to set fallbacks.
LeafFactory newFactory(Map params, SearchLookup searchLookup);
}
}