it.unimi.dsi.fastutil.longs

Interface LongBidirectionalIterator

All Superinterfaces:

BidirectionalIterator<Long>, Iterator<Long>, LongIterator, ObjectBidirectionalIterator<Long>, ObjectIterator<Long>

All Known Subinterfaces:

LongBigListIterator, LongListIterator

All Known Implementing Classes:

AbstractLongBidirectionalIterator, AbstractLongBigListIterator, AbstractLongListIterator, LongBigListIterators.BigListIteratorListIterator, LongBigListIterators.EmptyBigListIterator, LongBigListIterators.UnmodifiableBigListIterator, LongIterators.EmptyIterator, LongIterators.UnmodifiableBidirectionalIterator, LongIterators.UnmodifiableListIterator

public interface LongBidirectionalIterator
extends LongIterator, ObjectBidirectionalIterator<Long>

A type-specific bidirectional iterator; provides an additional method to avoid (un)boxing, and the possibility to skip elements backwards.

See Also:

BidirectionalIterator

Method Summary

Methods

Modifier and Type	Method and Description
int	back(int n) Moves back for the given number of elements.
long	previousLong() Returns the previous element as a primitive type.

Methods inherited from interface it.unimi.dsi.fastutil.longs.LongIterator

nextLong, skip

Methods inherited from interface it.unimi.dsi.fastutil.objects.ObjectIterator

skip

Methods inherited from interface it.unimi.dsi.fastutil.BidirectionalIterator

hasPrevious, previous

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Method Detail

previousLong

long previousLong()

Returns the previous element as a primitive type.

Returns:

the previous element in the iteration.

See Also:

ListIterator.previous()

back

int back(int n)

Moves back for the given number of elements.

The effect of this call is exactly the same as that of calling BidirectionalIterator.previous() for n times (possibly stopping if BidirectionalIterator.hasPrevious() becomes false).

Specified by:

back in interface ObjectBidirectionalIterator<Long>

Parameters:

n - the number of elements to skip back.

Returns:

the number of elements actually skipped.

See Also:

Iterator.next()