Package org.apache.commons.collections4

Class SplitMapUtils.WrappedGet<K,V>

java.lang.Object

org.apache.commons.collections4.SplitMapUtils.WrappedGet<K,V>

All Implemented Interfaces:

Map<K,V>, Get<K,V>, IterableGet<K,V>, IterableMap<K,V>, Put<K,V>, Unmodifiable

Enclosing class:

SplitMapUtils

private static class SplitMapUtils.WrappedGet<K,V>
extends Object
implements IterableMap<K,V>, Unmodifiable

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field	Description
private final Get<K,V>	get

Constructor Summary

Constructors

Modifier	Constructor	Description
private	WrappedGet(Get<K,V> get)

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object arg0)
V	get(Object key)
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
MapIterator<K,V>	mapIterator()	Obtains a MapIterator over the map.
V	put(K key, V value)	Note that the return type is Object, rather than V as in the Map interface.
void	putAll(Map<? extends K,? extends V> t)
V	remove(Object key)
int	size()
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Details

get

private final Get<K,V> get

Constructor Details

WrappedGet

private WrappedGet(Get<K,V> get)

Method Details

clear

public void clear()

Specified by:

clear in interface Map<K,V>

Specified by:

clear in interface Put<K,V>

See Also:

• Map.clear()

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Get<K,V>

Specified by:

containsKey in interface Map<K,V>

Parameters:

key - key whose presence in this map is to be tested

Returns:

true if this map contains a mapping for the specified key

See Also:

• Map.containsKey(Object)

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Get<K,V>

Specified by:

containsValue in interface Map<K,V>

Parameters:

value - value whose presence in this map is to be tested

Returns:

true if this map maps one or more keys to the specified value

See Also:

• Map.containsValue(Object)

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Get<K,V>

Specified by:

entrySet in interface Map<K,V>

Returns:

a set view of the mappings contained in this map

See Also:

• Map.entrySet()

equals

public boolean equals(Object arg0)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class Object

get

public V get(Object key)

Specified by:

get in interface Get<K,V>

Specified by:

get in interface Map<K,V>

Parameters:

key - the key whose associated value is to be returned

Returns:

the value to which the specified key is mapped, or null if this map contains no mapping for the key

See Also:

• Map.get(Object)

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class Object

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Get<K,V>

Specified by:

isEmpty in interface Map<K,V>

Returns:

true if this map contains no key-value mappings

See Also:

• Map.isEmpty()

keySet

public Set<K> keySet()

Specified by:

keySet in interface Get<K,V>

Specified by:

keySet in interface Map<K,V>

Returns:

a set view of the keys contained in this map

See Also:

• Map.keySet()

put

public V put(K key,
 V value)

Description copied from interface: Put

Note that the return type is Object, rather than V as in the Map interface. See the class Javadoc for further info.

Specified by:

put in interface Map<K,V>

Specified by:

put in interface Put<K,V>

Parameters:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

Returns:

the previous value associated with key, or null if there was no mapping for key. (A null return can also indicate that the map previously associated null with key, if the implementation supports null values.)

See Also:

• Map.put(Object, Object)

putAll

public void putAll(Map<? extends K,? extends V> t)

Specified by:

putAll in interface Map<K,V>

Specified by:

putAll in interface Put<K,V>

Parameters:

t - mappings to be stored in this map

See Also:

• Map.putAll(Map)

remove

public V remove(Object key)

Specified by:

remove in interface Get<K,V>

Specified by:

remove in interface Map<K,V>

Parameters:

key - key whose mapping is to be removed from the map

Returns:

the previous value associated with key, or null if there was no mapping for key.

See Also:

• Map.remove(Object)

size

public int size()

Specified by:

size in interface Get<K,V>

Specified by:

size in interface Map<K,V>

Returns:

the number of key-value mappings in this map

See Also:

• Map.size()

values

public Collection<V> values()

Specified by:

values in interface Get<K,V>

Specified by:

values in interface Map<K,V>

Returns:

a collection view of the values contained in this map

See Also:

• Map.values()

mapIterator

public MapIterator<K,V> mapIterator()

Description copied from interface: IterableGet

Obtains a MapIterator over the map.

A map iterator is an efficient way of iterating over maps. There is no need to access the entry set or use Map Entry objects.

 IterableMap<String,Integer> map = new HashedMap<String,Integer>();
 MapIterator<String,Integer> it = map.mapIterator();
 while (it.hasNext()) {
   String key = it.next();
   Integer value = it.getValue();
   it.setValue(value + 1);
 }
 

Specified by:

mapIterator in interface IterableGet<K,V>

Returns:

a map iterator