VectorizationProvider (Lucene 9.12.1 core API)

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.
Expert: set the "org.apache.lucene.vectorization.upperJavaFeatureVersion" system property to increase the set of Java versions this class will provide optimized implementations for.

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

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
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`.
`abstract PostingDecodingUtil`	`newPostingDecodingUtil(IndexInput input)`	Create a new `PostingDecodingUtil` for the given `IndexInput`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - 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.
  - newPostingDecodingUtil
```
public abstract PostingDecodingUtil newPostingDecodingUtil(IndexInput input)
                                                    throws IOException
```
    Create a new PostingDecodingUtil for the given IndexInput.
    
    Throws:
    
    IOException