cn.orionsec.kit.lang.define.collect

Class EmptyMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

cn.orionsec.kit.lang.define.collect.EmptyMap<K,V>

All Implemented Interfaces:

Serializable, Map<K,V>

public class EmptyMap<K,V>
extends AbstractMap<K,V>
implements Serializable

空元素 map

Since:

2020/10/22 17:24

Version:

1.0.0

Author:

Jiahang Li

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

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

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
static EmptyMap<?,?>	EMPTY

Constructor Summary

Constructors

Constructor and Description
EmptyMap()

Method Summary

Modifier and Type	Method and Description
V	compute(K key, BiFunction<? super K,? super V,? extends V> remappingFunction)
V	computeIfAbsent(K key, Function<? super K,? extends V> mappingFunction)
V	computeIfPresent(K key, BiFunction<? super K,? super V,? extends V> remappingFunction)
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object o)
void	forEach(BiConsumer<? super K,? super V> action)
V	get(Object key)
V	getOrDefault(Object k, V defaultValue)
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
V	merge(K key, V value, BiFunction<? super V,? super V,? extends V> remappingFunction)
V	putIfAbsent(K key, V value)
boolean	remove(Object key, Object value)
V	replace(K key, V value)
boolean	replace(K key, V oldValue, V newValue)
void	replaceAll(BiFunction<? super K,? super V,? extends V> function)
int	size()
Collection<V>	values()

Methods inherited from class java.util.AbstractMap

clear, clone, put, putAll, remove, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY

public static final EmptyMap<?,?> EMPTY

Constructor Detail

EmptyMap

public EmptyMap()

Method Detail

size

public int size()

Specified by:

size in interface Map<K,V>

Overrides:

size in class AbstractMap<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

Overrides:

isEmpty in class AbstractMap<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class AbstractMap<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

Overrides:

containsValue in class AbstractMap<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class AbstractMap<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

Overrides:

keySet in class AbstractMap<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

Overrides:

values in class AbstractMap<K,V>

entrySet

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

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class AbstractMap<K,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class AbstractMap<K,V>

getOrDefault

public V getOrDefault(Object k,
                      V defaultValue)

Specified by:

getOrDefault in interface Map<K,V>

forEach

public void forEach(BiConsumer<? super K,? super V> action)

Specified by:

forEach in interface Map<K,V>

replaceAll

public void replaceAll(BiFunction<? super K,? super V,? extends V> function)

Specified by:

replaceAll in interface Map<K,V>

putIfAbsent

public V putIfAbsent(K key,
                     V value)

Specified by:

putIfAbsent in interface Map<K,V>

remove

public boolean remove(Object key,
                      Object value)

Specified by:

remove in interface Map<K,V>

replace

public boolean replace(K key,
                       V oldValue,
                       V newValue)

Specified by:

replace in interface Map<K,V>

replace

public V replace(K key,
                 V value)

Specified by:

replace in interface Map<K,V>

computeIfAbsent

public V computeIfAbsent(K key,
                         Function<? super K,? extends V> mappingFunction)

Specified by:

computeIfAbsent in interface Map<K,V>

computeIfPresent

public V computeIfPresent(K key,
                          BiFunction<? super K,? super V,? extends V> remappingFunction)

Specified by:

computeIfPresent in interface Map<K,V>

compute

public V compute(K key,
                 BiFunction<? super K,? super V,? extends V> remappingFunction)

Specified by:

compute in interface Map<K,V>

merge

public V merge(K key,
               V value,
               BiFunction<? super V,? super V,? extends V> remappingFunction)

Specified by:

merge in interface Map<K,V>