PerFieldSimilarityWrapper

Provides the ability to use a different Similarity for different fields.

Subclasses should implement .get to return an appropriate Similarity (for example, using field-specific parameter values) for the field.

Constructors

constructor()

True if overlap tokens (tokens with a position of increment of zero) are discounted from the document's length.

Computes the normalization value for a field at index-time.

abstract fun get(name: String): Similarity

Returns a Similarity for scoring a field.

open override fun scorer(boost: Float, collectionStats: CollectionStatistics, vararg termStats: TermStatistics): Similarity.SimScorer

Compute any collection-level weight (e.g. IDF, average document length, etc) needed for scoring a query.