it.unimi.di.mg4j.search
Class AbstractCompositeDocumentIterator.AbstractCompositeIndexIntervalIterator

java.lang.Object
  it.unimi.di.mg4j.search.AbstractCompositeDocumentIterator.AbstractCompositeIndexIntervalIterator

All Implemented Interfaces:

IntervalIterator

Direct Known Subclasses:

AndDocumentIterator.AndIndexIntervalIterator, ConsecutiveDocumentIterator.ConsecutiveIndexIntervalIterator, OrderedAndDocumentIterator.OrderedAndIndexIntervalIterator, OrDocumentIterator.OrIndexIntervalIterator

Enclosing class:

AbstractCompositeDocumentIterator

protected abstract static class AbstractCompositeDocumentIterator.AbstractCompositeIndexIntervalIterator
extends Object
implements IntervalIterator

An abstract IndexIterator-based interval iterator. The difference with AbstractCompositeDocumentIterator.AbstractCompositeIntervalIterator is that this class assumes that all document iterators are actually index iterators. The algorithms in this (very common) case can be significantly simplified, obtaining a large gain in performance.

Field Summary

protected int[]

curr The last interval returned by each iterator.

Constructor Summary

AbstractCompositeDocumentIterator.AbstractCompositeIndexIntervalIterator(int n)

Method Summary

String

toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unimi.di.mg4j.search.IntervalIterator

extent, intervalTerms, nextInterval, reset

Field Detail

curr

protected int[] curr

The last interval returned by each iterator.

Constructor Detail

AbstractCompositeDocumentIterator.AbstractCompositeIndexIntervalIterator

public AbstractCompositeDocumentIterator.AbstractCompositeIndexIntervalIterator(int n)

Method Detail

toString

public String toString()

Overrides:

toString in class Object