Module org.apache.lucene.core
Class OffHeapQuantizedByteVectorValues.EmptyOffHeapVectorValues
java.lang.Object
org.apache.lucene.index.KnnVectorValues
org.apache.lucene.index.ByteVectorValues
org.apache.lucene.util.quantization.QuantizedByteVectorValues
org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues
org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues.EmptyOffHeapVectorValues
- All Implemented Interfaces:
HasIndexSlice
- Enclosing class:
OffHeapQuantizedByteVectorValues
private static class OffHeapQuantizedByteVectorValues.EmptyOffHeapVectorValues
extends OffHeapQuantizedByteVectorValues
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues
OffHeapQuantizedByteVectorValues.DenseOffHeapVectorValues
Nested classes/interfaces inherited from class org.apache.lucene.index.KnnVectorValues
KnnVectorValues.DocIndexIterator
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Field Summary
Fields inherited from class org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues
binaryValue, byteBuffer, byteSize, compress, dimension, lastOrd, numBytes, scalarQuantizer, scoreCorrectionConstant, similarityFunction, size, slice, vectorsScorer
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Constructor Summary
ConstructorsConstructorDescriptionEmptyOffHeapVectorValues
(int dimension, VectorSimilarityFunction similarityFunction, FlatVectorsScorer vectorsScorer) -
Method Summary
Modifier and TypeMethodDescriptioncopy()
Creates a new copy of thisKnnVectorValues
.int
Return the dimension of the vectorsgetAcceptOrds
(Bits acceptDocs) Returns a Bits accepting docs accepted by the argument and having a vector valueiterator()
Create an iterator for this instance.int
ordToDoc
(int ord) Return the docid of the document indexed with the given vector ordinal.scorer
(float[] target) Return aVectorScorer
for the given query vector.int
size()
Return the number of vectors for this field.byte[]
vectorValue
(int targetOrd) Return the vector value for the given vector ordinal which must be in [0, size() - 1], otherwise IndexOutOfBoundsException is thrown.Methods inherited from class org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues
compressBytes, compressedArray, decompressBytes, getScalarQuantizer, getScoreCorrectionConstant, getSlice, getVectorByteLength, load
Methods inherited from class org.apache.lucene.index.ByteVectorValues
checkField, fromBytes, getEncoding, scorer
Methods inherited from class org.apache.lucene.index.KnnVectorValues
createDenseIterator, createSparseIterator, fromDISI
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Constructor Details
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EmptyOffHeapVectorValues
public EmptyOffHeapVectorValues(int dimension, VectorSimilarityFunction similarityFunction, FlatVectorsScorer vectorsScorer)
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Method Details
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dimension
public int dimension()Description copied from class:KnnVectorValues
Return the dimension of the vectors- Overrides:
dimension
in classOffHeapQuantizedByteVectorValues
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size
public int size()Description copied from class:KnnVectorValues
Return the number of vectors for this field.- Overrides:
size
in classOffHeapQuantizedByteVectorValues
- Returns:
- the number of vectors returned by this iterator
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iterator
Description copied from class:KnnVectorValues
Create an iterator for this instance.- Overrides:
iterator
in classKnnVectorValues
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copy
Description copied from class:KnnVectorValues
Creates a new copy of thisKnnVectorValues
. This is helpful when you need to access different values at once, to avoid overwriting the underlying vector returned.- Overrides:
copy
in classQuantizedByteVectorValues
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vectorValue
public byte[] vectorValue(int targetOrd) Description copied from class:ByteVectorValues
Return the vector value for the given vector ordinal which must be in [0, size() - 1], otherwise IndexOutOfBoundsException is thrown. The returned array may be shared across calls.- Overrides:
vectorValue
in classOffHeapQuantizedByteVectorValues
- Returns:
- the vector value
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ordToDoc
public int ordToDoc(int ord) Description copied from class:KnnVectorValues
Return the docid of the document indexed with the given vector ordinal. This default implementation returns the argument and is appropriate for dense values implementations where every doc has a single value.- Overrides:
ordToDoc
in classKnnVectorValues
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getAcceptOrds
Description copied from class:KnnVectorValues
Returns a Bits accepting docs accepted by the argument and having a vector value- Overrides:
getAcceptOrds
in classKnnVectorValues
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scorer
Description copied from class:QuantizedByteVectorValues
Return aVectorScorer
for the given query vector.- Overrides:
scorer
in classQuantizedByteVectorValues
- Parameters:
target
- the query vector- Returns:
- a
VectorScorer
instance or null
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