Module org.apache.lucene.core
Class OffHeapFloatVectorValues.EmptyOffHeapVectorValues
java.lang.Object
org.apache.lucene.index.KnnVectorValues
org.apache.lucene.index.FloatVectorValues
org.apache.lucene.codecs.lucene95.OffHeapFloatVectorValues
org.apache.lucene.codecs.lucene95.OffHeapFloatVectorValues.EmptyOffHeapVectorValues
- All Implemented Interfaces:
HasIndexSlice
- Enclosing class:
OffHeapFloatVectorValues
private static class OffHeapFloatVectorValues.EmptyOffHeapVectorValues
extends OffHeapFloatVectorValues
-
Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.codecs.lucene95.OffHeapFloatVectorValues
OffHeapFloatVectorValues.DenseOffHeapVectorValues
Nested classes/interfaces inherited from class org.apache.lucene.index.KnnVectorValues
KnnVectorValues.DocIndexIterator
-
Field Summary
Fields inherited from class org.apache.lucene.codecs.lucene95.OffHeapFloatVectorValues
byteSize, dimension, flatVectorsScorer, lastOrd, similarityFunction, size, slice, value
-
Constructor Summary
ConstructorsConstructorDescriptionEmptyOffHeapVectorValues
(int dimension, FlatVectorsScorer flatVectorsScorer, VectorSimilarityFunction similarityFunction) -
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.scorer
(float[] query) Return aVectorScorer
for the given query vector and the currentFloatVectorValues
.int
size()
Return the number of vectors for this field.float[]
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.lucene95.OffHeapFloatVectorValues
getSlice, load
Methods inherited from class org.apache.lucene.index.FloatVectorValues
checkField, fromFloats, getEncoding
Methods inherited from class org.apache.lucene.index.KnnVectorValues
createDenseIterator, createSparseIterator, fromDISI, getVectorByteLength, ordToDoc
-
Constructor Details
-
EmptyOffHeapVectorValues
public EmptyOffHeapVectorValues(int dimension, FlatVectorsScorer flatVectorsScorer, VectorSimilarityFunction similarityFunction)
-
-
Method Details
-
dimension
public int dimension()Description copied from class:KnnVectorValues
Return the dimension of the vectors- Overrides:
dimension
in classOffHeapFloatVectorValues
-
size
public int size()Description copied from class:KnnVectorValues
Return the number of vectors for this field.- Overrides:
size
in classOffHeapFloatVectorValues
- Returns:
- the number of vectors returned by this iterator
-
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.- Specified by:
copy
in classFloatVectorValues
-
vectorValue
public float[] vectorValue(int targetOrd) Description copied from class:FloatVectorValues
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 classOffHeapFloatVectorValues
- Returns:
- the vector value
-
iterator
Description copied from class:KnnVectorValues
Create an iterator for this instance.- Overrides:
iterator
in classKnnVectorValues
-
getAcceptOrds
Description copied from class:KnnVectorValues
Returns a Bits accepting docs accepted by the argument and having a vector value- Overrides:
getAcceptOrds
in classKnnVectorValues
-
scorer
Description copied from class:FloatVectorValues
Return aVectorScorer
for the given query vector and the currentFloatVectorValues
.- Overrides:
scorer
in classFloatVectorValues
- Parameters:
query
- the query vector- Returns:
- a
VectorScorer
instance or null
-