Package org.apache.commons.collections4.iterators

Class EmptyMapIterator<K,V>

java.lang.Object

org.apache.commons.collections4.iterators.AbstractEmptyMapIterator<K,V>

org.apache.commons.collections4.iterators.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	Description
static final MapIterator	INSTANCE	Singleton instance of the iterator.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	EmptyMapIterator()	Constructs a new instance.

Method Summary

Modifier and Type	Method	Description
void	add(K obj)
static <K, V> MapIterator<K,V>	emptyMapIterator()	Gets a typed instance of the iterator.
boolean	hasNext()
boolean	hasPrevious()
K	next()
int	nextIndex()
K	previous()
int	previousIndex()
void	remove()
void	reset()
void	set(K obj)

Methods inherited from class org.apache.commons.collections4.iterators.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 java.util.Iterator

forEachRemaining

Methods inherited from interface org.apache.commons.collections4.MapIterator

getKey, getValue, hasNext, next, remove, setValue

Methods inherited from interface org.apache.commons.collections4.ResettableIterator

reset

Field Details

INSTANCE

public static final MapIterator INSTANCE

Singleton instance of the iterator.

Since:

3.1

Constructor Details

EmptyMapIterator

protected EmptyMapIterator()

Constructs a new instance.

Method Details

emptyMapIterator

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

Gets a typed instance of the iterator.

Type Parameters:

K - the key type

V - the value type

Returns:

MapIterator<K, V>

add

public void add(K obj)

hasNext

public boolean hasNext()

hasPrevious

public boolean hasPrevious()

next

public K next()

nextIndex

public int nextIndex()

previous

public K previous()

previousIndex

public int previousIndex()

remove

public void remove()

reset

public void reset()

set

public void set(K obj)