Package org.apache.lucene.internal.vectorization

Class VectorizationProvider

java.lang.Object

org.apache.lucene.internal.vectorization.VectorizationProvider

public abstract class VectorizationProvider
extends Object

A provider of vectorization implementations. Depending on the Java version and availability of vectorization modules in the Java runtime this class provides optimized implementations (using SIMD) of several algorithms used throughout Apache Lucene.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Method Summary

Modifier and Type	Method	Description
static VectorizationProvider	getInstance()	Returns the default instance of the provider matching vectorization possibilities of actual runtime.
abstract FlatVectorsScorer	getLucene99FlatVectorsScorer()	Returns a FlatVectorsScorer that supports the Lucene99 format.
abstract VectorUtilSupport	getVectorUtilSupport()	Returns a singleton (stateless) VectorUtilSupport to support SIMD usage in VectorUtil.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getInstance

public static VectorizationProvider getInstance()

Returns the default instance of the provider matching vectorization possibilities of actual runtime.

Throws:

UnsupportedOperationException - if the singleton getter is not called from known Lucene classes.

getVectorUtilSupport

public abstract VectorUtilSupport getVectorUtilSupport()

Returns a singleton (stateless) VectorUtilSupport to support SIMD usage in VectorUtil.

getLucene99FlatVectorsScorer

public abstract FlatVectorsScorer getLucene99FlatVectorsScorer()

Returns a FlatVectorsScorer that supports the Lucene99 format.