class IntervalScorer extends Scorer
Scorable.ChildScorable
Modifier and Type | Field and Description |
---|---|
private float |
boost |
private float |
freq |
private IntervalIterator |
intervals |
private int |
lastScoredDoc |
private int |
minExtent |
private Similarity.SimScorer |
simScorer |
Constructor and Description |
---|
IntervalScorer(Weight weight,
IntervalIterator intervals,
int minExtent,
float boost,
IntervalScoreFunction scoreFunction) |
Modifier and Type | Method and Description |
---|---|
int |
docID()
Returns the doc ID that is currently being scored.
|
private void |
ensureFreq() |
(package private) float |
freq() |
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.
|
TwoPhaseIterator |
twoPhaseIterator()
Optional method: Return a
TwoPhaseIterator view of this
Scorer . |
advanceShallow, getWeight
getChildren, setMinCompetitiveScore
private final IntervalIterator intervals
private final Similarity.SimScorer simScorer
private final float boost
private final int minExtent
private float freq
private int lastScoredDoc
IntervalScorer(Weight weight, IntervalIterator intervals, int minExtent, float boost, IntervalScoreFunction scoreFunction)
public int docID()
Scorable
public float score() throws java.io.IOException
Scorable
float freq() throws java.io.IOException
java.io.IOException
private void ensureFreq() throws java.io.IOException
java.io.IOException
public DocIdSetIterator iterator()
Scorer
DocIdSetIterator
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()
Scorer
TwoPhaseIterator
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 Scorer
s
that have a high per-document overhead in order to confirm matches.
The default implementation returns null
.twoPhaseIterator
in class Scorer
public float getMaxScore(int upTo)
Scorer
target
that this iterator was shallow-advanced
to
included and upTo
included.getMaxScore
in class Scorer