org.apache.lucene.search

Class ConjunctionDISI.TwoPhase

java.lang.Object

org.apache.lucene.search.DocIdSetIterator

org.apache.lucene.search.ConjunctionDISI

org.apache.lucene.search.ConjunctionDISI.TwoPhase

Enclosing class:

ConjunctionDISI

private static class ConjunctionDISI.TwoPhase
extends ConjunctionDISI

A conjunction DISI built on top of approximations. This implementation verifies that documents actually match by consulting the provided TwoPhaseIterators. Another important difference with ConjunctionDISI is that this implementation supports approximations too: the approximation of this impl is the conjunction of the approximations of the wrapped iterators. This allows eg. +"A B" +C to be approximated as +(+A +B) +C.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ConjunctionDISI.TwoPhaseConjunctionDISI	twoPhaseView

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

lead, others

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

NO_MORE_DOCS

Constructor Summary

Constructors

Modifier	Constructor and Description
private	TwoPhase(java.util.List<? extends DocIdSetIterator> iterators, java.util.List<TwoPhaseIterator> twoPhaseIterators)

Method Summary

Modifier and Type	Method and Description
ConjunctionDISI.TwoPhaseConjunctionDISI	asTwoPhaseIterator()
protected boolean	matches()

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

advance, cost, docID, intersectIterators, intersectScorers, intersectSpans, nextDoc

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

all, empty, slowAdvance

Methods inherited from class java.lang.Object

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

Field Detail

twoPhaseView

final ConjunctionDISI.TwoPhaseConjunctionDISI twoPhaseView

Constructor Detail

TwoPhase

private TwoPhase(java.util.List<? extends DocIdSetIterator> iterators,
                 java.util.List<TwoPhaseIterator> twoPhaseIterators)

Method Detail

asTwoPhaseIterator

public ConjunctionDISI.TwoPhaseConjunctionDISI asTwoPhaseIterator()

Overrides:

asTwoPhaseIterator in class ConjunctionDISI

matches

protected boolean matches()
                   throws java.io.IOException

Overrides:

matches in class ConjunctionDISI

Throws:

java.io.IOException