org.elasticsearch.index.fielddata.LeafFieldData Maven / Gradle / Ivy
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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.fielddata;
import org.apache.lucene.util.Accountable;
import org.elasticsearch.common.lease.Releasable;
import org.elasticsearch.index.mapper.DocValueFetcher;
import org.elasticsearch.search.DocValueFormat;
import java.io.IOException;
/**
* The thread safe {@link org.apache.lucene.index.LeafReader} level cache of the data.
*/
public interface LeafFieldData extends Accountable, Releasable {
/**
* Returns field values for use in scripting.
*/
ScriptDocValues getScriptValues();
/**
* Return a String representation of the values.
*/
SortedBinaryDocValues getBytesValues();
/**
* Return a value fetcher for this leaf implementation.
*/
default DocValueFetcher.Leaf getLeafValueFetcher(DocValueFormat format) {
SortedBinaryDocValues values = getBytesValues();
return new DocValueFetcher.Leaf() {
@Override
public boolean advanceExact(int docId) throws IOException {
return values.advanceExact(docId);
}
@Override
public int docValueCount() throws IOException {
return values.docValueCount();
}
@Override
public Object nextValue() throws IOException {
return format.format(values.nextValue());
}
};
}
}