core/org.gnit.lucenekmp.search/NGramPhraseQuery

NGramPhraseQuery

class NGramPhraseQuery(val n: Int, phraseQuery: PhraseQuery) : Query

This is a PhraseQuery which is optimized for n-gram phrase query. For example, when you query "ABCD" on a 2-gram field, you may want to use NGramPhraseQuery rather than PhraseQuery, because NGramPhraseQuery will Query.rewrite the query to "AB/0 CD/2", while PhraseQuery will query "AB/0 BC/1 CD/2" (where term/position).

Constructors

NGramPhraseQuery

constructor(n: Int, phraseQuery: PhraseQuery)

Properties

val n: Int

Return the n in n-gram

positions

val positions: IntArray

Return the list of relative positions that each term should appear at.

terms

val terms: Array<Term>

Return the list of terms.

Functions

createWeight

open fun createWeight(searcher: IndexSearcher, scoreMode: ScoreMode, boost: Float): Weight

Expert: Constructs an appropriate Weight implementation for this query.

equals

open operator override fun equals(other: Any?): Boolean

Override and implement query instance equivalence properly in a subclass. This is required so that QueryCache works properly.

hashCode

open override fun hashCode(): Int

Override and implement query hash code properly in a subclass. This is required so that [ ] works properly.

rewrite

open override fun rewrite(indexSearcher: IndexSearcher): Query

Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.

toString

open override fun toString(field: String?): String

Prints a query to a string, with field assumed to be the default field and omitted.

open override fun toString(): String

Prints a query to a string.

visit

open override fun visit(visitor: QueryVisitor)

Recurse through the query tree, visiting any child queries.