org.elasticsearch.script.DocReader 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.index.fielddata.ScriptDocValues;
import org.elasticsearch.script.field.Field;
import java.util.Map;
import java.util.stream.Stream;
/**
* Access the document in a script, provides both old-style, doc['fieldname'], and new style field('fieldname') access to the fields.
*
* {@code field(String)} and {@code fields(String)} may pull field contents from source as well as doc-values. Old style access
* only reads doc-values.
*/
public interface DocReader {
/** New-style field access */
Field field(String fieldName);
/** New-style field iterator */
Stream> fields(String fieldGlob);
/** Set the underlying docId */
void setDocument(int docID);
// Compatibility APIS
/** Old-style doc access for contexts that map some doc contents in params */
Map docAsMap();
/** Old-style doc['field'] access */
Map> doc();
}