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

Inherits Lucene.Net.Search.Scorer.

Public Member Functions
	ReqExclScorer (Scorer reqScorer, DocIdSetIterator exclDisi)
	Construct a `ReqExclScorer`.

override int	NextDoc ()
	Advances to the next document in the set and returns the doc it is currently on, or NO_MORE_DOCS if there are no more docs in the set.

override int	DocID ()
	Returns the following: -1 or NO_MORE_DOCS if NextDoc() or Advance(int) were not called yet. NO_MORE_DOCS if the iterator has exhausted. Otherwise it should return the doc ID it is currently on.

override float	Score ()
	Returns the score of the current document matching the query. Initially invalid, until NextDoc() is called the first time.

override int	Advance (int target)
	Advances to the first beyond the current whose document number is greater than or equal to target. Returns the current document number or NO_MORE_DOCS if there are no more docs in the set. Behaves as if written:

Public Member Functions inherited from Lucene.Net.Search.Scorer
virtual void	Score (Collector collector)
	Scores and collects all matching documents.

virtual bool	Score (Collector collector, int max, int firstDocID)
	Expert: Collects matching documents in a range. Hook for optimization. Note, firstDocID is added to ensure that DocIdSetIterator.NextDoc() was called before this method.

Additional Inherited Members
Static Public Attributes inherited from Lucene.Net.Search.DocIdSetIterator
static readonly int	NO_MORE_DOCS = System.Int32.MaxValue
	When returned by NextDoc(), Advance(int) and DocID() it means there are no more docs in the iterator.

Properties inherited from Lucene.Net.Search.Scorer
virtual Similarity	Similarity `[get]`
	Returns the Similarity implementation used by this scorer.

Detailed Description

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

Definition at line 30 of file ReqExclScorer.cs.

Constructor & Destructor Documentation

Lucene.Net.Search.ReqExclScorer.ReqExclScorer	(	Scorer	reqScorer,
		DocIdSetIterator	exclDisi
	)

Construct a ReqExclScorer.

Parameters

reqScorer	The scorer that must match, except where
exclDisi	indicates exclusion.

Definition at line 41 of file ReqExclScorer.cs.

Member Function Documentation

override int Lucene.Net.Search.ReqExclScorer.Advance ( int target )

virtual

Advances to the first beyond the current whose document number is greater than or equal to target. Returns the current document number or NO_MORE_DOCS if there are no more docs in the set. Behaves as if written:

int advance(int target) { int doc; while ((doc = nextDoc()) < target) { } return doc; }

Some implementations are considerably more efficient than that.

NOTE: certain implemenations may return a different value (each time) if called several times in a row with the same target.

NOTE: this method may be called with NO_MORE_DOCS for efficiency by some Scorers. If your implementation cannot efficiently determine that it should exhaust, it is recommended that you check for that value in each call to this method.

NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.

Implements Lucene.Net.Search.DocIdSetIterator.

Definition at line 122 of file ReqExclScorer.cs.

override int Lucene.Net.Search.ReqExclScorer.DocID ( )

virtual

Returns the following: