it.unimi.dsi.fastutil.longs

Class LongIterators.EmptyIterator

java.lang.Object

it.unimi.dsi.fastutil.longs.LongIterators.EmptyIterator

All Implemented Interfaces:

BidirectionalIterator<Long>, LongBidirectionalIterator, LongIterator, LongListIterator, ObjectBidirectionalIterator<Long>, ObjectIterator<Long>, Serializable, Cloneable, Iterator<Long>, ListIterator<Long>, PrimitiveIterator<Long,LongConsumer>, PrimitiveIterator.OfLong

Enclosing class:

LongIterators

public static class LongIterators.EmptyIterator
extends Object
implements LongListIterator, Serializable, Cloneable

A class returning no elements and a type-specific iterator interface.

This class may be useful to implement your own in case you subclass a type-specific iterator.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.PrimitiveIterator

PrimitiveIterator.OfDouble, PrimitiveIterator.OfInt, PrimitiveIterator.OfLong

Method Summary

Modifier and Type	Method and Description
int	back(int n) Moves back for the given number of elements.
Object	clone()
boolean	hasNext()
boolean	hasPrevious() Returns whether there is a previous element.
int	nextIndex()
long	nextLong() Returns the next element as a primitive type.
int	previousIndex()
long	previousLong() Returns the previous element as a primitive type.
int	skip(int n) Skips the given number of elements.

Methods inherited from class java.lang.Object

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

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

add, add, next, previous, remove, set, set

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

forEachRemaining

Methods inherited from interface java.util.PrimitiveIterator.OfLong

forEachRemaining

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Long>

Specified by:

hasNext in interface ListIterator<Long>

hasPrevious

public boolean hasPrevious()

Description copied from interface: BidirectionalIterator

Returns whether there is a previous element.

Specified by:

hasPrevious in interface BidirectionalIterator<Long>

Specified by:

hasPrevious in interface ListIterator<Long>

Returns:

whether there is a previous element.

See Also:

ListIterator.hasPrevious()

nextLong

public long nextLong()

Description copied from interface: LongIterator

Returns the next element as a primitive type.

Specified by:

nextLong in interface LongIterator

Specified by:

nextLong in interface PrimitiveIterator.OfLong

Returns:

the next element in the iteration.

See Also:

Iterator.next()

previousLong

public long previousLong()

Description copied from interface: LongBidirectionalIterator

Returns the previous element as a primitive type.

Specified by:

previousLong in interface LongBidirectionalIterator

Returns:

the previous element in the iteration.

See Also:

ListIterator.previous()

nextIndex

public int nextIndex()

Specified by:

nextIndex in interface ListIterator<Long>

previousIndex

public int previousIndex()

Specified by:

previousIndex in interface ListIterator<Long>

skip

public int skip(int n)

Description copied from interface: LongBidirectionalIterator

Skips the given number of elements.

The effect of this call is exactly the same as that of calling LongIterator.next() for n times (possibly stopping if Iterator.hasNext() becomes false).

Specified by:

skip in interface LongBidirectionalIterator

Specified by:

skip in interface LongIterator

Specified by:

skip in interface ObjectBidirectionalIterator<Long>

Specified by:

skip in interface ObjectIterator<Long>

Parameters:

n - the number of elements to skip.

Returns:

the number of elements actually skipped.

See Also:

Iterator.next()

back

public int back(int n)

Description copied from interface: LongBidirectionalIterator

Moves back for the given number of elements.

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

Specified by:

back in interface LongBidirectionalIterator

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:

LongBidirectionalIterator.previous()

clone

public Object clone()

Overrides:

clone in class Object