VectorUtilSupport (Lucene 9.11.1 core API)

```
public interface VectorUtilSupport
```
Interface for implementations of VectorUtil support.

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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`float`	`cosine(byte[] a, byte[] b)`	Returns the cosine similarity between the two byte vectors.
`float`	`cosine(float[] v1, float[] v2)`	Returns the cosine similarity between the two vectors.
`int`	`dotProduct(byte[] a, byte[] b)`	Returns the dot product computed over signed bytes.
`float`	`dotProduct(float[] a, float[] b)`	Calculates the dot product of the given float arrays.
`int`	`int4DotProduct(byte[] a, boolean apacked, byte[] b, boolean bpacked)`	Returns the dot product over the computed bytes, assuming the values are int4 encoded.
`int`	`squareDistance(byte[] a, byte[] b)`	Returns the sum of squared differences of the two byte vectors.
`float`	`squareDistance(float[] a, float[] b)`	Returns the sum of squared differences of the two vectors.

- Method Detail
  - dotProduct
```
float dotProduct(float[] a,
                 float[] b)
```
    Calculates the dot product of the given float arrays.
  - cosine
```
float cosine(float[] v1,
             float[] v2)
```
    Returns the cosine similarity between the two vectors.
  - squareDistance
```
float squareDistance(float[] a,
                     float[] b)
```
    Returns the sum of squared differences of the two vectors.
  - dotProduct
```
int dotProduct(byte[] a,
               byte[] b)
```
    Returns the dot product computed over signed bytes.
  - int4DotProduct
```
int int4DotProduct(byte[] a,
                   boolean apacked,
                   byte[] b,
                   boolean bpacked)
```
    Returns the dot product over the computed bytes, assuming the values are int4 encoded.
  - cosine
```
float cosine(byte[] a,
             byte[] b)
```
    Returns the cosine similarity between the two byte vectors.
  - squareDistance
```
int squareDistance(byte[] a,
                   byte[] b)
```
    Returns the sum of squared differences of the two byte vectors.