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Add Lucene99ScalarQuantizedVector classes removed in Lucene 10.4 #135424

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Merged
merged 2 commits into from
Sep 25, 2025
Merged

Add Lucene99ScalarQuantizedVector classes removed in Lucene 10.4 #135424

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b886faa
Add classes removed in Lucene 10.4
thecoop Sep 25, 2025
457d16c
Package moves
thecoop Sep 25, 2025
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2 changes: 1 addition & 1 deletion benchmarks/src/main/java/org/elasticsearch/benchmark/vector/Int7uScorerBenchmark.java
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Expand Up @@ -10,7 +10,6 @@
package org.elasticsearch.benchmark.vector;

import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorScorer;
import org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues;
import org.apache.lucene.index.VectorSimilarityFunction;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.IOContext;
Expand All @@ -24,6 +23,7 @@
import org.apache.lucene.util.quantization.ScalarQuantizer;
import org.elasticsearch.common.logging.LogConfigurator;
import org.elasticsearch.core.IOUtils;
import org.elasticsearch.index.codec.vectors.OffHeapQuantizedByteVectorValues;
import org.elasticsearch.logging.LogManager;
import org.elasticsearch.logging.Logger;
import org.elasticsearch.simdvec.VectorScorerFactory;
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2 changes: 1 addition & 1 deletion libs/simdvec/src/test/java/org/elasticsearch/simdvec/Int7SQVectorScorerFactoryTests.java
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Expand Up @@ -12,7 +12,6 @@
import com.carrotsearch.randomizedtesting.generators.RandomNumbers;

import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorScorer;
import org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues;
import org.apache.lucene.index.VectorSimilarityFunction;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.IOContext;
Expand All @@ -24,6 +23,7 @@
import org.apache.lucene.util.quantization.QuantizedByteVectorValues;
import org.apache.lucene.util.quantization.ScalarQuantizedVectorSimilarity;
import org.apache.lucene.util.quantization.ScalarQuantizer;
import org.elasticsearch.index.codec.vectors.OffHeapQuantizedByteVectorValues;

import java.io.IOException;
import java.util.Arrays;
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6 changes: 3 additions & 3 deletions ...rc/main/java/org/elasticsearch/index/codec/vectors/ES814ScalarQuantizedVectorsFormat.java
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Expand Up @@ -17,8 +17,6 @@
import org.apache.lucene.codecs.hnsw.FlatVectorsWriter;
import org.apache.lucene.codecs.hnsw.ScalarQuantizedVectorScorer;
import org.apache.lucene.codecs.lucene99.Lucene99FlatVectorsFormat;
import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsReader;
import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsWriter;
import org.apache.lucene.index.ByteVectorValues;
import org.apache.lucene.index.FieldInfo;
import org.apache.lucene.index.FloatVectorValues;
Expand All @@ -40,7 +38,6 @@
import java.io.IOException;
import java.util.Map;

import static org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsFormat.DYNAMIC_CONFIDENCE_INTERVAL;
import static org.elasticsearch.index.mapper.vectors.DenseVectorFieldMapper.MAX_DIMS_COUNT;

public class ES814ScalarQuantizedVectorsFormat extends FlatVectorsFormat {
Expand All @@ -60,6 +57,9 @@ public class ES814ScalarQuantizedVectorsFormat extends FlatVectorsFormat {
/** The maximum confidence interval */
private static final float MAXIMUM_CONFIDENCE_INTERVAL = 1f;

/** Dynamic confidence interval */
public static final float DYNAMIC_CONFIDENCE_INTERVAL = 0f;

/**
* Controls the confidence interval used to scalar quantize the vectors the default value is
* calculated as `1-1/(vector_dimensions + 1)`
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