org.aoju.bus.core.map

Class MapWrapper<K,V>

java.lang.Object

org.aoju.bus.core.map.MapWrapper<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

Serializable, Cloneable, Iterable<Map.Entry<K,V>>, Map<K,V>

Direct Known Subclasses:

CollectionValueMap, CustomKeyMap

public class MapWrapper<K,V>
extends Object
implements Map<K,V>, Iterable<Map.Entry<K,V>>, Serializable, Cloneable

Map包装类，通过包装一个已有Map实现特定功能。例如自定义Key的规则或Value规则

Since:

JDK 1.8

Version:

3.6.5

Author:

Kimi Liu

See Also:

Serialized Form

Nested Class Summary

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

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	DEFAULT_INITIAL_CAPACITY 默认初始大小
protected static float	DEFAULT_LOAD_FACTOR 默认增长因子

Constructor Summary

Constructors

Constructor and Description
MapWrapper(Map<K,V> raw) 构造

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
Map<K,V>	getRaw() 获取原始的Map
boolean	isEmpty()
Iterator<Map.Entry<K,V>>	iterator()
Set<K>	keySet()
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key)
int	size()
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

DEFAULT_LOAD_FACTOR

protected static final float DEFAULT_LOAD_FACTOR

默认增长因子

See Also:

Constant Field Values

DEFAULT_INITIAL_CAPACITY

protected static final int DEFAULT_INITIAL_CAPACITY

默认初始大小

See Also:

Constant Field Values

Constructor Detail

MapWrapper

public MapWrapper(Map<K,V> raw)

构造

Parameters:

raw - 被包装的Map

Method Detail

getRaw

public Map<K,V> getRaw()

获取原始的Map

Returns:

Map

size

public int size()

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

putAll

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

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

entrySet

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

Specified by:

entrySet in interface Map<K,V>

iterator

public Iterator<Map.Entry<K,V>> iterator()

Specified by:

iterator in interface Iterable<Map.Entry<K,V>>