Package org.apache.lucene.search.similarities

# Class RawTFSimilarity

java.lang.Object
org.apache.lucene.search.similarities.Similarity
org.apache.lucene.search.similarities.RawTFSimilarity

public class RawTFSimilarity extends Similarity
Similarity that returns the raw TF as score.

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class org.apache.lucene.search.similarities.Similarity

  `Similarity.BulkSimScorer, Similarity.SimScorer`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `RawTFSimilarity()`
  Default constructor: parameter-free
  `RawTFSimilarity(boolean discountOverlaps)`
  Primary constructor.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `Similarity.SimScorer`
  `scorer(float boost, CollectionStatistics collectionStats, TermStatistics... termStats)`
  Compute any collection-level weight (e.g.

  ### Methods inherited from class org.apache.lucene.search.similarities.Similarity

  `computeNorm, getDiscountOverlaps`

  ### Methods inherited from class java.lang.Object

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

- ## Constructor Details

  - ### RawTFSimilarity

    public RawTFSimilarity()
    Default constructor: parameter-free

  - ### RawTFSimilarity

    public RawTFSimilarity(boolean discountOverlaps)
    Primary constructor.

- ## Method Details

  - ### scorer

    public Similarity.SimScorer scorer(float boost, CollectionStatistics collectionStats, TermStatistics... termStats)
    Description copied from class: `Similarity`
    Compute any collection-level weight (e.g. IDF, average document length, etc) needed for scoring a query.
    Specified by:
      `scorer` in class `Similarity`
    Parameters:
      `boost` - a multiplicative factor to apply to the produces scores
      `collectionStats` - collection-level statistics, such as the number of tokens in the collection.
      `termStats` - term-level statistics, such as the document frequency of a term across the collection.
    Returns:
      SimWeight object with the information this Similarity needs to score a query.