org.opensearch.index.fielddata.LeafFieldData Maven / Gradle / Ivy
/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.index.fielddata;
import org.apache.lucene.util.Accountable;
import org.opensearch.common.lease.Releasable;
import org.opensearch.index.mapper.DocValueFetcher;
import org.opensearch.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());
}
};
}
}