Module org.apache.lucene.core
Package org.apache.lucene.search
Class ScoreCachingWrappingScorer.ScoreCachingWrappingLeafCollector
java.lang.Object
org.apache.lucene.search.FilterLeafCollector
org.apache.lucene.search.ScoreCachingWrappingScorer.ScoreCachingWrappingLeafCollector
- All Implemented Interfaces:
LeafCollector
- Enclosing class:
ScoreCachingWrappingScorer
private static class ScoreCachingWrappingScorer.ScoreCachingWrappingLeafCollector
extends FilterLeafCollector
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Field Summary
FieldsFields inherited from class org.apache.lucene.search.FilterLeafCollector
in
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
collect
(int doc) Called once for every document matching a query, with the unbased document number.Optionally returns an iterator over competitive documents.void
Called before successive calls toLeafCollector.collect(int)
.Methods inherited from class org.apache.lucene.search.FilterLeafCollector
finish, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.lucene.search.LeafCollector
collect
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Field Details
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scorer
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Constructor Details
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ScoreCachingWrappingLeafCollector
ScoreCachingWrappingLeafCollector(LeafCollector in)
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Method Details
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setScorer
Description copied from interface:LeafCollector
Called before successive calls toLeafCollector.collect(int)
. Implementations that need the score of the current document (passed-in toLeafCollector.collect(int)
), should save the passed-in Scorer and call scorer.score() when needed.- Specified by:
setScorer
in interfaceLeafCollector
- Overrides:
setScorer
in classFilterLeafCollector
- Throws:
IOException
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collect
Description copied from interface:LeafCollector
Called once for every document matching a query, with the unbased document number.Note: The collection of the current segment can be terminated by throwing a
CollectionTerminatedException
. In this case, the last docs of the currentLeafReaderContext
will be skipped andIndexSearcher
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
StoredFields.document(int)
on every hit. Doing so can slow searches by an order of magnitude or more.- Specified by:
collect
in interfaceLeafCollector
- Overrides:
collect
in classFilterLeafCollector
- Throws:
IOException
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competitiveIterator
Description copied from interface:LeafCollector
Optionally returns an iterator over competitive documents.Collectors should delegate this method to their comparators if their comparators provide the skipping functionality over non-competitive docs.
The default is to return
null
which is interpreted as the collector provide any competitive iterator.- Throws:
IOException
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