org.apache.openjpa.lib.util.collections

Class EmptyOrderedIterator<E>

java.lang.Object

org.apache.openjpa.lib.util.collections.EmptyOrderedIterator<E>

Type Parameters:

E - the type to iterate.

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:

3.1

Field Summary

Fields

Modifier and Type	Field and Description
static OrderedIterator	INSTANCE Singleton instance of the iterator.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EmptyOrderedIterator() Constructor.

Method Summary

Modifier and Type	Method and Description
void	add(E obj)
static <E> OrderedIterator<E>	emptyOrderedIterator() Typed instance of the iterator.
boolean	hasNext()
boolean	hasPrevious()
E	next()
int	nextIndex()
E	previous()
int	previousIndex()
void	remove()
void	reset()
void	set(E obj)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.openjpa.lib.util.collections.OrderedIterator

hasPrevious, previous

Methods inherited from interface org.apache.openjpa.lib.util.collections.ResettableIterator

reset

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Field Detail

INSTANCE

public static final OrderedIterator INSTANCE

Singleton instance of the iterator.

Since:

3.1

Constructor Detail

EmptyOrderedIterator

protected EmptyOrderedIterator()

Constructor.

Method Detail

emptyOrderedIterator

public static <E> OrderedIterator<E> emptyOrderedIterator()

Typed instance of the iterator.

Type Parameters:

E - the element type

Returns:

OrderedIterator<E>

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()

reset

public void reset()