private static class TopGroupsCollector.MaxScoreCollector extends SimpleCollector
Modifier and Type | Field and Description |
---|---|
private boolean |
collectedAnyHits |
private float |
maxScore |
private Scorable |
scorer |
Constructor and Description |
---|
MaxScoreCollector() |
Modifier and Type | Method and Description |
---|---|
void |
collect(int doc)
Called once for every document matching a query, with the unbased document
number.
|
float |
getMaxScore() |
ScoreMode |
scoreMode()
Indicates what features are required from the scorer.
|
void |
setScorer(Scorable scorer)
Called before successive calls to
LeafCollector.collect(int) . |
doSetNextReader, getLeafCollector
private Scorable scorer
private float maxScore
private boolean collectedAnyHits
public float getMaxScore()
public ScoreMode scoreMode()
Collector
public void setScorer(Scorable scorer)
LeafCollector
LeafCollector.collect(int)
. Implementations
that need the score of the current document (passed-in to
LeafCollector.collect(int)
), should save the passed-in Scorer and call
scorer.score() when needed.setScorer
in interface LeafCollector
setScorer
in class SimpleCollector
public void collect(int doc) throws java.io.IOException
LeafCollector
Note: The collection of the current segment can be terminated by throwing
a CollectionTerminatedException
. In this case, the last docs of the
current LeafReaderContext
will be skipped and IndexSearcher
will swallow the exception and continue collection with the next leaf.
Note: This is called in an inner search loop. For good search performance,
implementations of this method should not call IndexSearcher.doc(int)
or
IndexReader.document(int)
on every hit.
Doing so can slow searches by an order of magnitude or more.
collect
in interface LeafCollector
collect
in class SimpleCollector
java.io.IOException