Package org.apache.lucene.util.hnsw
Interface RandomAccessVectorValues<T>
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public interface RandomAccessVectorValues<T>
Provides random access to vectors by dense ordinal. This interface is used by HNSW-based implementations of KNN search.- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description RandomAccessVectorValues<T>
copy()
Creates a new copy of thisRandomAccessVectorValues
.int
dimension()
Return the dimension of the returned vector valuesint
size()
Return the number of vector valuesT
vectorValue(int targetOrd)
Return the vector value indexed at the given ordinal.
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Method Detail
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size
int size()
Return the number of vector values
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dimension
int dimension()
Return the dimension of the returned vector values
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vectorValue
T vectorValue(int targetOrd) throws IOException
Return the vector value indexed at the given ordinal.- Parameters:
targetOrd
- a valid ordinal, ≥ 0 and <size()
.- Throws:
IOException
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copy
RandomAccessVectorValues<T> copy() throws IOException
Creates a new copy of thisRandomAccessVectorValues
. This is helpful when you need to access different values at once, to avoid overwriting the underlying float vector returned byvectorValue(int)
.- Throws:
IOException
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