org.apache.openjpa.lib.util.collections

Class EmptyMapIterator<K,V>

java.lang.Object

org.apache.openjpa.lib.util.collections.AbstractEmptyMapIterator<K,V>

org.apache.openjpa.lib.util.collections.EmptyMapIterator<K,V>

Type Parameters:

K - the type of keys

V - the type of mapped values

All Implemented Interfaces:

Iterator<K>, MapIterator<K,V>, ResettableIterator<K>

public class EmptyMapIterator<K,V>
extends AbstractEmptyMapIterator<K,V>
implements MapIterator<K,V>, ResettableIterator<K>

Provides an implementation of an empty map iterator.

Since:

3.1

Field Summary

Fields

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EmptyMapIterator() Constructor.

Method Summary

Modifier and Type	Method and Description
void	add(E obj)
static <K,V> MapIterator<K,V>	emptyMapIterator() Get a 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 org.apache.openjpa.lib.util.collections.AbstractEmptyMapIterator

getKey, getValue, setValue

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.MapIterator

getKey, getValue, hasNext, next, remove, setValue

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

reset

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

INSTANCE

public static final MapIterator INSTANCE

Singleton instance of the iterator.

Since:

3.1

Constructor Detail

EmptyMapIterator

protected EmptyMapIterator()

Constructor.

Method Detail

emptyMapIterator

public static <K,V> MapIterator<K,V> emptyMapIterator()

Get a typed instance of the iterator.

Type Parameters:

K - the key type

V - the value type

Returns:

MapIterator<K, V>

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()