Class OffHeapByteVectorValues.DenseOffHeapVectorValues
java.lang.Object
org.apache.lucene.search.DocIdSetIterator
org.apache.lucene.index.ByteVectorValues
org.apache.lucene.codecs.lucene95.OffHeapByteVectorValues
org.apache.lucene.codecs.lucene95.OffHeapByteVectorValues.DenseOffHeapVectorValues
- All Implemented Interfaces:
RandomAccessVectorValues
,RandomAccessVectorValues.Bytes
- Enclosing class:
OffHeapByteVectorValues
public static class OffHeapByteVectorValues.DenseOffHeapVectorValues
extends OffHeapByteVectorValues
Dense vector values that are stored off-heap. This is the most common case when every doc has a
vector.
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.codecs.lucene95.OffHeapByteVectorValues
OffHeapByteVectorValues.DenseOffHeapVectorValues
Nested classes/interfaces inherited from interface org.apache.lucene.util.hnsw.RandomAccessVectorValues
RandomAccessVectorValues.Bytes, RandomAccessVectorValues.Floats
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Field Summary
Fields inherited from class org.apache.lucene.codecs.lucene95.OffHeapByteVectorValues
binaryValue, byteBuffer, byteSize, dimension, flatVectorsScorer, lastOrd, similarityFunction, size, slice
Fields inherited from class org.apache.lucene.search.DocIdSetIterator
NO_MORE_DOCS
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Constructor Summary
ConstructorDescriptionDenseOffHeapVectorValues
(int dimension, int size, IndexInput slice, int byteSize, FlatVectorsScorer flatVectorsScorer, VectorSimilarityFunction vectorSimilarityFunction) -
Method Summary
Modifier and TypeMethodDescriptionint
advance
(int target) Advances to the first beyond the current whose document number is greater than or equal to target, and returns the document number itself.copy()
Creates a new copy of thisRandomAccessVectorValues
.int
docID()
Returns the following:-1
ifDocIdSetIterator.nextDoc()
orDocIdSetIterator.advance(int)
were not called yet.getAcceptOrds
(Bits acceptDocs) Returns theBits
representing live documents.int
nextDoc()
Advances to the next document in the set and returns the doc it is currently on, orDocIdSetIterator.NO_MORE_DOCS
if there are no more docs in the set.
NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.scorer
(byte[] query) Return aVectorScorer
for the given query vector.byte[]
Return the vector value for the current document ID.Methods inherited from class org.apache.lucene.codecs.lucene95.OffHeapByteVectorValues
dimension, getSlice, load, size, vectorValue
Methods inherited from class org.apache.lucene.index.ByteVectorValues
checkField, cost
Methods inherited from class org.apache.lucene.search.DocIdSetIterator
all, empty, 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.util.hnsw.RandomAccessVectorValues
ordToDoc
Methods inherited from interface org.apache.lucene.util.hnsw.RandomAccessVectorValues.Bytes
getVectorByteLength
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Constructor Details
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DenseOffHeapVectorValues
public DenseOffHeapVectorValues(int dimension, int size, IndexInput slice, int byteSize, FlatVectorsScorer flatVectorsScorer, VectorSimilarityFunction vectorSimilarityFunction)
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Method Details
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vectorValue
Description copied from class:ByteVectorValues
Return the vector value for the current document ID. It is illegal to call this method when the iterator is not positioned: before advancing, or after failing to advance. The returned array may be shared across calls, re-used, and modified as the iterator advances.- Specified by:
vectorValue
in classByteVectorValues
- Returns:
- the vector value
- Throws:
IOException
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docID
public int docID()Description copied from class:DocIdSetIterator
Returns the following:-1
ifDocIdSetIterator.nextDoc()
orDocIdSetIterator.advance(int)
were not called yet.DocIdSetIterator.NO_MORE_DOCS
if the iterator has exhausted.- Otherwise it should return the doc ID it is currently on.
- Specified by:
docID
in classDocIdSetIterator
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nextDoc
Description copied from class:DocIdSetIterator
Advances to the next document in the set and returns the doc it is currently on, orDocIdSetIterator.NO_MORE_DOCS
if there are no more docs in the set.
NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.- Specified by:
nextDoc
in classDocIdSetIterator
- Throws:
IOException
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advance
Description copied from class:DocIdSetIterator
Advances to the first beyond the current whose document number is greater than or equal to target, and returns the document number itself. Exhausts the iterator and returnsDocIdSetIterator.NO_MORE_DOCS
if target is greater than the highest document number in the set.The behavior of this method is undefined when called with
target ≤ current
, or after the iterator has exhausted. Both cases may result in unpredicted behavior.When
target > current
it behaves as if written:int advance(int target) { int doc; while ((doc = nextDoc()) < target) { } return doc; }
Some implementations are considerably more efficient than that.NOTE: this method may be called with
DocIdSetIterator.NO_MORE_DOCS
for efficiency by some Scorers. If your implementation cannot efficiently determine that it should exhaust, it is recommended that you check for that value in each call to this method.- Specified by:
advance
in classDocIdSetIterator
- Throws:
IOException
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copy
Description copied from interface:RandomAccessVectorValues
Creates a new copy of thisRandomAccessVectorValues
. This is helpful when you need to access different values at once, to avoid overwriting the underlying vector returned.- Throws:
IOException
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getAcceptOrds
Description copied from interface:RandomAccessVectorValues
Returns theBits
representing live documents. By default, this is an identity function.- Parameters:
acceptDocs
- the accept docs- Returns:
- the accept docs
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scorer
Description copied from class:ByteVectorValues
Return aVectorScorer
for the given query vector. The iterator for the scorer is not the same instance as the iterator for thisByteVectorValues
. It is a copy, and iteration over the scorer will not affect the iteration of thisByteVectorValues
.- Specified by:
scorer
in classByteVectorValues
- Parameters:
query
- the query vector- Returns:
- a
VectorScorer
instance or null - Throws:
IOException
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