Module org.apache.jena.core

Package org.apache.jena.mem2.store.roaring

Class RoaringBitmapTripleIterator

java.lang.Object

org.apache.jena.util.iterator.NiceIterator<Triple>

org.apache.jena.mem2.store.roaring.RoaringBitmapTripleIterator

All Implemented Interfaces:

Iterator<Triple>, org.apache.jena.atlas.iterator.IteratorCloseable<Triple>, org.apache.jena.atlas.lib.Closeable, ClosableIterator<Triple>, ExtendedIterator<Triple>

public class RoaringBitmapTripleIterator
extends NiceIterator<Triple>

A triple iterator that iterates over triple indices in a RoaringBitmap BatchIterator. Only the #forEachRemaining method uses ImmutableBitmapDataProvider.forEach(org.roaringbitmap.IntConsumer) if there has been no #next or #hasNext call before. All triples are stored in a FastHashSet and each triple is retrieved from the set by its index. The bitmap typically is a subset of the triple indices in the set.

Constructor Summary

Constructors

Constructor	Description
RoaringBitmapTripleIterator(org.roaringbitmap.ImmutableBitmapDataProvider bitmap, FastHashSet<Triple> triples)

Method Summary

Modifier and Type	Method	Description
void	forEachRemaining(Consumer<? super Triple> action)
boolean	hasNext()	default hasNext: no elements, return false.
Triple	next()	default next: throw an exception.

Methods inherited from class org.apache.jena.util.iterator.NiceIterator

andThen, andThen, asList, asSet, close, close, emptyIterator, filterDrop, filterKeep, mapWith, remove, removeNext, toList, toSet

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.util.iterator.ExtendedIterator

forEach, nextOptional

Constructor Details

RoaringBitmapTripleIterator

public RoaringBitmapTripleIterator(org.roaringbitmap.ImmutableBitmapDataProvider bitmap,
 FastHashSet<Triple> triples)

Method Details

hasNext

public boolean hasNext()

Description copied from class: NiceIterator

default hasNext: no elements, return false.

Specified by:

hasNext in interface Iterator<Triple>

Overrides:

hasNext in class NiceIterator<Triple>

next

public Triple next()

Description copied from class: NiceIterator

default next: throw an exception.

Specified by:

next in interface Iterator<Triple>

Overrides:

next in class NiceIterator<Triple>

forEachRemaining

public void forEachRemaining(Consumer<? super Triple> action)