VectorField renamed to KnnVectorField?

[Michael Wechner]

Hi

In May 2021 I have done a Vector Search implementation based on Lucene 
9.0.0-SNAPSHOT with the following code

FieldType vectorFieldType = VectorField.createHnswType(vector.length, 
VectorValues.SimilarityFunction.DOT_PRODUCT,16,500);
VectorField vectorField =new VectorField(VECTOR_FIELD, vector, vectorFieldType);
doc.add(vectorField)

and

class KnnWeightextends Weight {

    KnnWeight() {
        super(KnnQuery.this);
    }

    @Override public Scorer scorer(LeafReaderContext context)throws IOException 
{
        log.debug("Get scorer.");
        return new TopDocScorer(this, 
context.reader().searchNearestVectors(field,vector,topK,fanout));
    }

whereas fanout is of type "int"

I have now updated Lucene source and rebuilt 9.0.0-SNAPSHOT and get various 
compile errors.

I assume VectorField got renamed to KnnVectorField, right?

Does somebody maybe have some sample code how Vector search is being 
implemented with the most recent Lucene code?

Thanks

Michael