Class OffHeapQuantizedByteVectorValues
- java.lang.Object
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- org.apache.lucene.search.DocIdSetIterator
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- org.apache.lucene.index.ByteVectorValues
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- org.apache.lucene.util.quantization.QuantizedByteVectorValues
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- org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues
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- All Implemented Interfaces:
RandomAccessVectorValues<byte[]>
,RandomAccessQuantizedByteVectorValues
- Direct Known Subclasses:
OffHeapQuantizedByteVectorValues.DenseOffHeapVectorValues
public 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 Classes Modifier and Type Class Description static class
OffHeapQuantizedByteVectorValues.DenseOffHeapVectorValues
Dense vector values that are stored off-heap.
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Field Summary
Fields Modifier and Type Field Description protected byte[]
binaryValue
protected ByteBuffer
byteBuffer
protected int
byteSize
protected int
dimension
protected int
lastOrd
protected float[]
scoreCorrectionConstant
protected int
size
protected IndexInput
slice
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Fields inherited from class org.apache.lucene.search.DocIdSetIterator
NO_MORE_DOCS
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
dimension()
Return the dimension of the vectorsfloat
getScoreCorrectionConstant()
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
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Methods inherited from class org.apache.lucene.search.DocIdSetIterator
advance, all, docID, empty, nextDoc, range, slowAdvance
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.lucene.util.quantization.RandomAccessQuantizedByteVectorValues
copy
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Methods inherited from interface org.apache.lucene.util.hnsw.RandomAccessVectorValues
getAcceptOrds, ordToDoc
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Field Detail
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dimension
protected final int dimension
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size
protected final int size
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slice
protected final IndexInput slice
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binaryValue
protected final byte[] binaryValue
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byteBuffer
protected final ByteBuffer byteBuffer
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byteSize
protected final int byteSize
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lastOrd
protected int lastOrd
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scoreCorrectionConstant
protected final float[] scoreCorrectionConstant
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Method Detail
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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
public byte[] vectorValue(int targetOrd) throws IOException
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
public static OffHeapQuantizedByteVectorValues load(OrdToDocDISIReaderConfiguration configuration, int dimension, int size, long quantizedVectorDataOffset, long quantizedVectorDataLength, IndexInput vectorData) throws IOException
- Throws:
IOException
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