org.apache.lucene.search

Class TopFieldCollector.MultiComparatorLeafCollector

java.lang.Object

org.apache.lucene.search.TopFieldCollector.MultiComparatorLeafCollector

All Implemented Interfaces:

LeafCollector

Enclosing class:

TopFieldCollector

private abstract static class TopFieldCollector.MultiComparatorLeafCollector
extends java.lang.Object
implements LeafCollector

Field Summary

Fields

Modifier and Type	Field and Description
(package private) LeafFieldComparator[]	comparators
(package private) LeafFieldComparator	firstComparator
(package private) int	firstReverseMul
(package private) boolean	mayNeedScoresTwice
(package private) int[]	reverseMul
(package private) Scorer	scorer

Constructor Summary

Constructors

Constructor and Description
MultiComparatorLeafCollector(LeafFieldComparator[] comparators, int[] reverseMul, boolean mayNeedScoresTwice)

Method Summary

Modifier and Type	Method and Description
protected int	compareBottom(int doc)
protected int	compareTop(int doc)
protected void	copy(int slot, int doc)
protected void	setBottom(int slot)
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

Methods inherited from interface org.apache.lucene.search.LeafCollector

collect

Field Detail

comparators

final LeafFieldComparator[] comparators

reverseMul

final int[] reverseMul

firstComparator

final LeafFieldComparator firstComparator

firstReverseMul

final int firstReverseMul

mayNeedScoresTwice

final boolean mayNeedScoresTwice

scorer

Scorer scorer

Constructor Detail

MultiComparatorLeafCollector

MultiComparatorLeafCollector(LeafFieldComparator[] comparators,
                             int[] reverseMul,
                             boolean mayNeedScoresTwice)

Method Detail

compareBottom

protected final int compareBottom(int doc)
                           throws java.io.IOException

Throws:

java.io.IOException

copy

protected final void copy(int slot,
                          int doc)
                   throws java.io.IOException

Throws:

java.io.IOException

setBottom

protected final void setBottom(int slot)

compareTop

protected final int compareTop(int doc)
                        throws java.io.IOException

Throws:

java.io.IOException

setScorer

public void setScorer(Scorer scorer)
               throws java.io.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:

java.io.IOException