Module org.apache.lucene.core
Class OffHeapQuantizedByteVectorValues
java.lang.Object
org.apache.lucene.search.DocIdSetIterator
org.apache.lucene.index.ByteVectorValues
org.apache.lucene.codecs.lucene99.QuantizedByteVectorValues
org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues
- All Implemented Interfaces:
RandomAccessQuantizedByteVectorValues
,RandomAccessVectorValues<byte[]>
- Direct Known Subclasses:
OffHeapQuantizedByteVectorValues.DenseOffHeapVectorValues
,OffHeapQuantizedByteVectorValues.EmptyOffHeapVectorValues
,OffHeapQuantizedByteVectorValues.SparseOffHeapVectorValues
abstract class OffHeapQuantizedByteVectorValues
extends QuantizedByteVectorValues
implements RandomAccessQuantizedByteVectorValues
Read the quantized vector values and their score correction values from the index input. This
supports both iterated and random access.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescription(package private) static class
private static class
private static class
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected final byte[]
protected final ByteBuffer
protected final int
protected final int
protected int
protected final float[]
protected final int
protected final IndexInput
Fields inherited from class org.apache.lucene.search.DocIdSetIterator
NO_MORE_DOCS
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionint
Return the dimension of the vectorsfloat
(package private) static OffHeapQuantizedByteVectorValues
load
(OrdToDocDISIReaderConfiguration configuration, int dimension, int size, long quantizedVectorDataOffset, long quantizedVectorDataLength, IndexInput vectorData) int
size()
Return the number of vectors for this field.byte[]
vectorValue
(int targetOrd) Return the vector value indexed at the given ordinal.Methods inherited from class org.apache.lucene.index.ByteVectorValues
cost, vectorValue
Methods inherited from class org.apache.lucene.search.DocIdSetIterator
advance, all, docID, empty, nextDoc, range, slowAdvance
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.lucene.codecs.lucene99.RandomAccessQuantizedByteVectorValues
copy
Methods inherited from interface org.apache.lucene.util.hnsw.RandomAccessVectorValues
getAcceptOrds, ordToDoc
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Field Details
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dimension
protected final int dimension -
size
protected final int size -
slice
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binaryValue
protected final byte[] binaryValue -
byteBuffer
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byteSize
protected final int byteSize -
lastOrd
protected int lastOrd -
scoreCorrectionConstant
protected final float[] scoreCorrectionConstant
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Constructor Details
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OffHeapQuantizedByteVectorValues
OffHeapQuantizedByteVectorValues(int dimension, int size, IndexInput slice)
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Method Details
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dimension
public int dimension()Description copied from class:ByteVectorValues
Return the dimension of the vectors- Specified by:
dimension
in interfaceRandomAccessVectorValues<byte[]>
- Specified by:
dimension
in classByteVectorValues
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size
public int size()Description copied from class:ByteVectorValues
Return the number of vectors for this field.- Specified by:
size
in interfaceRandomAccessVectorValues<byte[]>
- Specified by:
size
in classByteVectorValues
- Returns:
- the number of vectors returned by this iterator
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vectorValue
Description copied from interface:RandomAccessVectorValues
Return the vector value indexed at the given ordinal.- Specified by:
vectorValue
in interfaceRandomAccessVectorValues<byte[]>
- Parameters:
targetOrd
- a valid ordinal, ≥ 0 and <RandomAccessVectorValues.size()
.- Throws:
IOException
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getScoreCorrectionConstant
public float getScoreCorrectionConstant()- Specified by:
getScoreCorrectionConstant
in interfaceRandomAccessQuantizedByteVectorValues
- Specified by:
getScoreCorrectionConstant
in classQuantizedByteVectorValues
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load
static OffHeapQuantizedByteVectorValues load(OrdToDocDISIReaderConfiguration configuration, int dimension, int size, long quantizedVectorDataOffset, long quantizedVectorDataLength, IndexInput vectorData) throws IOException - Throws:
IOException
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