org.apache.lucene.search

Class MultiCollectorManager.Collectors.LeafCollectors

java.lang.Object

org.apache.lucene.search.MultiCollectorManager.Collectors.LeafCollectors

All Implemented Interfaces:

LeafCollector

Enclosing class:

MultiCollectorManager.Collectors

public class MultiCollectorManager.Collectors.LeafCollectors
extends Object
implements LeafCollector

Method Summary

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).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setScorer

public final void setScorer(Scorer scorer)
                     throws IOException

Description copied from interface: LeafCollector

Called before successive calls to 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.

Specified by:

setScorer in interface LeafCollector

Throws:

IOException

collect

public final void collect(int doc)
                   throws IOException

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 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.

Specified by:

collect in interface LeafCollector

Throws:

IOException