org.apache.lucene.queries.payloads.PayloadDecoder Maven / Gradle / Ivy
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* this work for additional information regarding copyright ownership.
* The ASF 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
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.lucene.queries.payloads;
import org.apache.lucene.util.BytesRef;
/** Defines a way of converting payloads to float values, for use by {@link PayloadScoreQuery} */
public interface PayloadDecoder {
/** Compute a float value for the given payload */
float computePayloadFactor(BytesRef payload);
/** A {@link PayloadDecoder} that interprets the bytes of a payload as a float */
PayloadDecoder FLOAT_DECODER = bytes -> bytes == null ? 1 : bytes.bytes[bytes.offset];
}