org.apache.lucene.search.join

Class ToParentBlockJoinQuery.ChildrenMatchesScorer

java.lang.Object

org.apache.lucene.search.Scorer

org.apache.lucene.search.join.ToParentBlockJoinQuery.ChildrenMatchesScorer

Enclosing class:

ToParentBlockJoinQuery

public abstract static class ToParentBlockJoinQuery.ChildrenMatchesScorer
extends Scorer

Ascendant for ToParentBlockJoinQuery's scorer.

WARNING: This API is experimental and might change in incompatible ways in the next release.

it might be removed at 6.0

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.Scorer

Scorer.ChildScorer

Field Summary

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

weight

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ChildrenMatchesScorer(Weight weight) inherited constructor

Method Summary

Modifier and Type	Method and Description
abstract int	getChildCount() reports matched children
abstract int[]	swapChildDocs(int[] other) reports matched children
abstract void	trackPendingChildHits() enables children matches recording

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

docID, freq, getChildren, getWeight, iterator, score, twoPhaseIterator

Methods inherited from class java.lang.Object

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

Constructor Detail

ChildrenMatchesScorer

protected ChildrenMatchesScorer(Weight weight)

inherited constructor

Method Detail

trackPendingChildHits

public abstract void trackPendingChildHits()

enables children matches recording

getChildCount

public abstract int getChildCount()

reports matched children

Returns:

number of recorded matched children docs

swapChildDocs

public abstract int[] swapChildDocs(int[] other)

reports matched children

Parameters:

other - array for recording matching children docs of next parent, it might be null (that's slower) or the same array which was returned from the previous call

Returns:

array with getChildCount() matched children docnums