| Modifier and Type | Class and Description |
|---|---|
private class |
ConstantScoreScorer.DocIdSetIteratorWrapper |
Scorable.ChildScorable| Modifier and Type | Field and Description |
|---|---|
private DocIdSetIterator |
approximation |
private DocIdSetIterator |
disi |
private float |
score |
private ScoreMode |
scoreMode |
private TwoPhaseIterator |
twoPhaseIterator |
| Constructor and Description |
|---|
ConstantScoreScorer(Weight weight,
float score,
ScoreMode scoreMode,
DocIdSetIterator disi)
Constructor based on a
DocIdSetIterator which will be used to
drive iteration. |
ConstantScoreScorer(Weight weight,
float score,
ScoreMode scoreMode,
TwoPhaseIterator twoPhaseIterator)
Constructor based on a
TwoPhaseIterator. |
| Modifier and Type | Method and Description |
|---|---|
int |
docID()
Returns the doc ID that is currently being scored.
|
float |
getMaxScore(int upTo)
Return the maximum score that documents between the last
target
that this iterator was shallow-advanced to
included and upTo included. |
DocIdSetIterator |
iterator()
Return a
DocIdSetIterator over matching documents. |
float |
score()
Returns the score of the current document matching the query.
|
void |
setMinCompetitiveScore(float minScore)
Optional method: Tell the scorer that its iterator may safely ignore all
documents whose score is less than the given
minScore. |
TwoPhaseIterator |
twoPhaseIterator()
Optional method: Return a
TwoPhaseIterator view of this
Scorer. |
advanceShallow, getWeightgetChildrenprivate final float score
private final ScoreMode scoreMode
private final DocIdSetIterator approximation
private final TwoPhaseIterator twoPhaseIterator
private final DocIdSetIterator disi
public ConstantScoreScorer(Weight weight, float score, ScoreMode scoreMode, DocIdSetIterator disi)
DocIdSetIterator which will be used to
drive iteration. Two phase iteration will not be supported.weight - the parent weightscore - the score to return on each documentscoreMode - the score modedisi - the iterator that defines matching documentspublic ConstantScoreScorer(Weight weight, float score, ScoreMode scoreMode, TwoPhaseIterator twoPhaseIterator)
TwoPhaseIterator. In that case the
Scorer will support two-phase iteration.weight - the parent weightscore - the score to return on each documentscoreMode - the score modetwoPhaseIterator - the iterator that defines matching documentspublic float getMaxScore(int upTo)
throws java.io.IOException
Scorertarget
that this iterator was shallow-advanced to
included and upTo included.getMaxScore in class Scorerjava.io.IOExceptionpublic void setMinCompetitiveScore(float minScore)
throws java.io.IOException
ScorableminScore. This is a
no-op by default.
This method may only be called from collectors that use
ScoreMode.TOP_SCORES, and successive calls may only set increasing
values of minScore.setMinCompetitiveScore in class Scorablejava.io.IOExceptionpublic DocIdSetIterator iterator()
ScorerDocIdSetIterator over matching documents.
The returned iterator will either be positioned on -1 if no
documents have been scored yet, DocIdSetIterator.NO_MORE_DOCS
if all documents have been scored already, or the last document id that
has been scored otherwise.
The returned iterator is a view: calling this method several times will
return iterators that have the same state.public TwoPhaseIterator twoPhaseIterator()
ScorerTwoPhaseIterator view of this
Scorer. A return value of null indicates that
two-phase iteration is not supported.
Note that the returned TwoPhaseIterator's
approximation must
advance synchronously with the Scorer.iterator(): advancing the
approximation must advance the iterator and vice-versa.
Implementing this method is typically useful on Scorers
that have a high per-document overhead in order to confirm matches.
The default implementation returns null.twoPhaseIterator in class Scorerpublic int docID()
Scorable