A Scorer for OR like queries, counterpart of ConjunctionScorer. This Scorer implements DocIdSetIterator.Advance(int) and uses skipTo() on the given Scorers. More...

Inherits Lucene.Net.Search.Scorer.

Inherited by Lucene.Net.Search.BooleanScorer2.AnonymousClassDisjunctionSumScorer.

Public Member Functions
	DisjunctionSumScorer (System.Collections.Generic.IList< Scorer > subScorers, int minimumNrMatchers)
	Construct a `DisjunctionScorer`.

	DisjunctionSumScorer (System.Collections.Generic.IList< Scorer > subScorers)
	Construct a `DisjunctionScorer`, using one as the minimum number of matching subscorers.

override void	Score (Collector collector)
	Scores and collects all matching documents.

override bool	Score (Collector collector, int max, int firstDocID)
	Expert: Collects matching documents in a range. Hook for optimization. Note that NextDoc() must be called once before this method is called for the first time.

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

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.

virtual int	NrMatchers ()
	Returns the number of subscorers matching the current document. Initially invalid, until NextDoc() is called the first time.

override int	Advance (int target)
	Advances to the first match beyond the current whose document number is greater than or equal to a given target. The implementation uses the skipTo() method on the subscorers.

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 OR like queries, counterpart of ConjunctionScorer. This Scorer implements DocIdSetIterator.Advance(int) and uses skipTo() on the given Scorers.

Definition at line 28 of file DisjunctionSumScorer.cs.

Constructor & Destructor Documentation

Lucene.Net.Search.DisjunctionSumScorer.DisjunctionSumScorer	(	System.Collections.Generic.IList< Scorer >	subScorers,
		int	minimumNrMatchers
	)

Construct a DisjunctionScorer.

Parameters

subScorers	A collection of at least two subscorers.
minimumNrMatchers	The positive minimum number of subscorers that should match to match this query. When `minimumNrMatchers` is bigger than the number of `subScorers`, no matches will be produced. When minimumNrMatchers equals the number of subScorers, it more efficient to use `ConjunctionScorer`.

Definition at line 72 of file DisjunctionSumScorer.cs.

Lucene.Net.Search.DisjunctionSumScorer.DisjunctionSumScorer ( System.Collections.Generic.IList< Scorer > subScorers )

Construct a DisjunctionScorer, using one as the minimum number of matching subscorers.

Definition at line 95 of file DisjunctionSumScorer.cs.

Member Function Documentation

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

virtual

Advances to the first match beyond the current whose document number is greater than or equal to a given target.
The implementation uses the skipTo() method on the subscorers.

Parameters

target The target document number.

Returns: the document whose number is greater than or equal to the given target, or -1 if none exist.

Implements Lucene.Net.Search.DocIdSetIterator.

Definition at line 251 of file DisjunctionSumScorer.cs.

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

virtual

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.

Implements Lucene.Net.Search.DocIdSetIterator.

Definition at line 228 of file DisjunctionSumScorer.cs.

override int Lucene.Net.Search.DisjunctionSumScorer.NextDoc ( )

virtual

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.

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 153 of file DisjunctionSumScorer.cs.

virtual int Lucene.Net.Search.DisjunctionSumScorer.NrMatchers ( )

virtual

Returns the number of subscorers matching the current document. Initially invalid, until NextDoc() is called the first time.

Definition at line 236 of file DisjunctionSumScorer.cs.

override void Lucene.Net.Search.DisjunctionSumScorer.Score ( Collector collector )

virtual

Scores and collects all matching documents.

Parameters

collector The collector to which all matching documents are passed through.

Reimplemented from Lucene.Net.Search.Scorer.

Definition at line 118 of file DisjunctionSumScorer.cs.

override bool Lucene.Net.Search.DisjunctionSumScorer.Score	(	Collector	collector,
		int	max,
		int	firstDocID
	)

virtual

Expert: Collects matching documents in a range. Hook for optimization. Note that NextDoc() must be called once before this method is called for the first time.

Parameters

collector	The collector to which all matching documents are passed through.
max	Do not score documents past this.
firstDocID

Returns: true if more matching documents may remain.

Reimplemented from Lucene.Net.Search.Scorer.

Definition at line 138 of file DisjunctionSumScorer.cs.

override float Lucene.Net.Search.DisjunctionSumScorer.Score ( )

virtual

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

Implements Lucene.Net.Search.Scorer.

Definition at line 223 of file DisjunctionSumScorer.cs.

The documentation for this class was generated from the following file:

core/Search/DisjunctionSumScorer.cs

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation