org.apache.commons.collections.iterators
Class EmptyOrderedIterator<E>

java.lang.Object
  org.apache.commons.collections.iterators.EmptyOrderedIterator<E>

All Implemented Interfaces:

Iterator<E>, OrderedIterator<E>, ResettableIterator<E>

public class EmptyOrderedIterator<E>
extends Object
implements OrderedIterator<E>, ResettableIterator<E>

Provides an implementation of an empty ordered iterator.

Since:

Commons Collections 3.1

Version:

$Revision: 1.1.1.1 $ $Date: 2005/05/23 04:34:50 $

Author:

Matt Hall, John Watkinson, Stephen Colebourne

Field Summary

static OrderedIterator

INSTANCE Singleton instance of the iterator.

Constructor Summary

protected

EmptyOrderedIterator() Constructor.

Method Summary

void	add(E obj)
E	getKey()
E	getValue()
boolean	hasNext()
boolean	hasPrevious()
E	next()
int	nextIndex()
E	previous()
int	previousIndex()
void	remove()
void	reset()
void	set(E obj)
E	setValue(E value)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.collections.OrderedIterator

hasPrevious, previous

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Methods inherited from interface org.apache.commons.collections.ResettableIterator

reset

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Field Detail

INSTANCE

public static final OrderedIterator INSTANCE

Singleton instance of the iterator.

Since:

Commons Collections 3.1

Constructor Detail

EmptyOrderedIterator

protected EmptyOrderedIterator()

Constructor.

Method Detail

hasNext

public boolean hasNext()

next

public E next()

hasPrevious

public boolean hasPrevious()

previous

public E previous()

nextIndex

public int nextIndex()

previousIndex

public int previousIndex()

add

public void add(E obj)

set

public void set(E obj)

remove

public void remove()

getKey

public E getKey()

getValue

public E getValue()

setValue

public E setValue(E value)

reset

public void reset()