core/org.gnit.lucenekmp.search/ConstantScoreWeight

ConstantScoreWeight

abstract class ConstantScoreWeight : Weight

A Weight that has a constant score equal to the boost of the wrapped query. This is typically useful when building queries which do not produce meaningful scores and are mostly useful for filtering.

Properties

query

open val query: Query

The query that this concerns.

Functions

bulkScorer

fun bulkScorer(context: LeafReaderContext): BulkScorer?

Helper method that delegates to .scorerSupplier. It is implemented as

count

open fun count(context: LeafReaderContext): Int

Counts the number of live documents that match a given this.query in a leaf.

explain

open override fun explain(context: LeafReaderContext, doc: Int): Explanation

An explanation of the score computation for the named document.

isCacheable

abstract fun isCacheable(ctx: LeafReaderContext): Boolean

matches

open fun matches(context: LeafReaderContext, doc: Int): Matches?

Returns Matches for a specific document, or null if the document does not match the parent query

scorer

fun scorer(context: LeafReaderContext): Scorer?

Optional method that delegates to scorerSupplier.

scorerSupplier

abstract fun scorerSupplier(context: LeafReaderContext): ScorerSupplier?

Get a ScorerSupplier, which allows knowing the cost of the Scorer before building it. A scorer supplier for the same LeafReaderContext instance may be requested multiple times as part of a single search call.