org.apache.lucene.search

Class ReqExclScorer

public class ReqExclScorer extends Scorer

A Scorer for queries with a required subscorer and an excluding (prohibited) subscorer.
This Scorer implements Scorer, and it uses the skipTo() on the given scorers.

Constructor Summary
	ReqExclScorer(Scorer reqScorer, Scorer exclScorer) Construct a `ReqExclScorer`.

Method Summary
int	doc()
Explanation	explain(int doc)
boolean	next()
float	score() Returns the score of the current document matching the query.
boolean	skipTo(int target) Skips to the first match beyond the current whose document number is greater than or equal to a given target.

Constructor Detail

ReqExclScorer

public ReqExclScorer(Scorer reqScorer, Scorer exclScorer)

Construct a ReqExclScorer.

Parameters: reqScorer The scorer that must match, except where exclScorer indicates exclusion.

Method Detail

doc

public int doc()

explain

public Explanation explain(int doc)

public boolean next()

score

public float score()

Returns the score of the current document matching the query. Initially invalid, until next is called the first time.

Returns: The score of the required scorer.