# Uses of Class
org.apache.lucene.search.AbstractKnnCollector

Packages that use AbstractKnnCollector
Package
Description
org.apache.lucene.search
Code to search indices.
org.apache.lucene.search.knn
Classes related to vector search: knn and vector fields.

- ## Uses of AbstractKnnCollector in org.apache.lucene.search

  Subclasses of AbstractKnnCollector in org.apache.lucene.search
  Modifier and Type
  Class
  Description
  `class`
  `TopKnnCollector`
  TopKnnCollector is a specific KnnCollector.

- ## Uses of AbstractKnnCollector in org.apache.lucene.search.knn

  Constructors in org.apache.lucene.search.knn with parameters of type AbstractKnnCollector
  Modifier
  Constructor
  Description
  ``
  `MultiLeafKnnCollector(int k, float greediness, int interval, BlockingFloatHeap globalSimilarityQueue, AbstractKnnCollector subCollector)`
  Create a new MultiLeafKnnCollector.
  ``
  `MultiLeafKnnCollector(int k, BlockingFloatHeap globalSimilarityQueue, AbstractKnnCollector subCollector)`
  Create a new MultiLeafKnnCollector.