Module org.apache.lucene.core

Package org.apache.lucene.search

Class CachingCollector.NoScoreCachingLeafCollector

java.lang.Object

org.apache.lucene.search.FilterLeafCollector

org.apache.lucene.search.CachingCollector.NoScoreCachingLeafCollector

All Implemented Interfaces:

LeafCollector

Direct Known Subclasses:

CachingCollector.ScoreCachingLeafCollector

Enclosing class:

CachingCollector

private class CachingCollector.NoScoreCachingLeafCollector
extends FilterLeafCollector

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final CachingCollector.NoScoreCachingCollector	collector
(package private) int	docCount
(package private) int[]	docs
(package private) final int	maxDocsToCache

Fields inherited from class org.apache.lucene.search.FilterLeafCollector

in

Constructor Summary

Constructors

Constructor	Description
NoScoreCachingLeafCollector(LeafCollector in, int maxDocsToCache, CachingCollector.NoScoreCachingCollector collector)

Method Summary

Modifier and Type	Method	Description
protected void	buffer(int doc)
(package private) int[]	cachedDocs()
void	collect(int doc)	Called once for every document matching a query, with the unbased document number.
void	finish()	Hook that gets called once the leaf that is associated with this collector has finished collecting successfully, including when a CollectionTerminatedException is thrown.
protected void	grow(int newLen)
(package private) boolean	hasCache()
protected void	invalidate()
protected void	postCollect()

Methods inherited from class org.apache.lucene.search.FilterLeafCollector

setScorer, 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, competitiveIterator

Field Details

maxDocsToCache

final int maxDocsToCache

collector

final CachingCollector.NoScoreCachingCollector collector

docs

int[] docs

docCount

int docCount

Constructor Details

NoScoreCachingLeafCollector

NoScoreCachingLeafCollector(LeafCollector in,
 int maxDocsToCache,
 CachingCollector.NoScoreCachingCollector collector)

Method Details

grow

protected void grow(int newLen)

invalidate

protected void invalidate()

buffer

protected void buffer(int doc)
               throws IOException

Throws:

IOException

collect

public 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 StoredFields.document(int) on every hit. Doing so can slow searches by an order of magnitude or more.

Specified by:

collect in interface LeafCollector

Overrides:

collect in class FilterLeafCollector

Throws:

IOException

postCollect

protected void postCollect()

finish

public void finish()

Description copied from interface: LeafCollector

Hook that gets called once the leaf that is associated with this collector has finished collecting successfully, including when a CollectionTerminatedException is thrown. This is typically useful to compile data that has been collected on this leaf, e.g. to convert facet counts on leaf ordinals to facet counts on global ordinals. The default implementation does nothing.

Note: It can be assumed that this method will only be called once per LeafCollector instance.

Specified by:

finish in interface LeafCollector

Overrides:

finish in class FilterLeafCollector

hasCache

boolean hasCache()

cachedDocs

int[] cachedDocs()