Package it.unimi.dsi.fastutil.objects

Class ObjectBigListIterators.EmptyBigListIterator<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.ObjectBigListIterators.EmptyBigListIterator<K>

All Implemented Interfaces:

BidirectionalIterator<K>, BigListIterator<K>, ObjectBidirectionalIterator<K>, ObjectBigListIterator<K>, ObjectIterator<K>, java.io.Serializable, java.lang.Cloneable, java.util.Iterator<K>

Enclosing class:

ObjectBigListIterators

public static class ObjectBigListIterators.EmptyBigListIterator<K>
extends java.lang.Object
implements ObjectBigListIterator<K>, java.io.Serializable, java.lang.Cloneable

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

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

See Also:

Serialized Form

Method Summary

Modifier and Type	Method	Description
long	back(long n)	Moves back for the given number of elements.
java.lang.Object	clone()
boolean	hasNext()
boolean	hasPrevious()	Returns whether there is a previous element.
K	next()
long	nextIndex()	Returns the index of the element that would be returned by a subsequent call to next.
K	previous()	Returns the previous element from the collection.
long	previousIndex()	Returns the index of the element that would be returned by a subsequent call to previous.
long	skip(long n)	Skips the given number of elements.

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Methods inherited from class java.lang.Object

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

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

back

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

add, set, skip

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<K>

hasPrevious

public boolean hasPrevious()

Description copied from interface: BidirectionalIterator

Returns whether there is a previous element.

Specified by:

hasPrevious in interface BidirectionalIterator<K>

Returns:

whether there is a previous element.

See Also:

ListIterator.hasPrevious()

next

public K next()

Specified by:

next in interface java.util.Iterator<K>

previous

public K previous()

Description copied from interface: BidirectionalIterator

Returns the previous element from the collection.

Specified by:

previous in interface BidirectionalIterator<K>

Returns:

the previous element from the collection.

See Also:

ListIterator.previous()

nextIndex

public long nextIndex()

Description copied from interface: BigListIterator

Returns the index of the element that would be returned by a subsequent call to next. (Returns list size if the list iterator is at the end of the list.)

Specified by:

nextIndex in interface BigListIterator<K>

Returns:

the index of the element that would be returned by a subsequent call to next, or list size if list iterator is at end of list.

See Also:

ListIterator.nextIndex()

previousIndex

public long previousIndex()

Description copied from interface: BigListIterator

Returns the index of the element that would be returned by a subsequent call to previous. (Returns -1 if the list iterator is at the beginning of the list.)

Specified by:

previousIndex in interface BigListIterator<K>

Returns:

the index of the element that would be returned by a subsequent call to previous, or -1 if list iterator is at beginning of list.

See Also:

ListIterator.previousIndex()

skip

public long skip(long n)

Description copied from interface: ObjectBigListIterator

Skips the given number of elements.

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

Specified by:

skip in interface ObjectBigListIterator<K>

Parameters:

n - the number of elements to skip.

Returns:

the number of elements actually skipped.

See Also:

Iterator.next()

back

public long back(long n)

Description copied from interface: ObjectBigListIterator

Moves back for the given number of elements.

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

Specified by:

back in interface ObjectBigListIterator<K>

Parameters:

n - the number of elements to skip back.

Returns:

the number of elements actually skipped.

See Also:

BidirectionalIterator.previous()

clone

public java.lang.Object clone()