public abstract class FilterLeafCollector extends Object implements LeafCollector
LeafCollector
delegator.Modifier and Type | Field and Description |
---|---|
protected LeafCollector |
in |
Constructor and Description |
---|
FilterLeafCollector(LeafCollector in)
Sole constructor.
|
Modifier and Type | Method and Description |
---|---|
void |
collect(int doc)
Called once for every document matching a query, with the unbased document
number.
|
void |
setScorer(Scorer scorer)
Called before successive calls to
LeafCollector.collect(int) . |
String |
toString() |
protected final LeafCollector in
public FilterLeafCollector(LeafCollector in)
public void setScorer(Scorer scorer) throws IOException
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
IOException
public void collect(int doc) throws 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
IOException
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