Package org.aoju.bus.core.map

Class ReferenceMap<K,V>

java.lang.Object

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

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

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

Direct Known Subclasses:

WeakMap

public class ReferenceMap<K,V>
extends Object
implements ConcurrentMap<K,V>, Iterable<Map.Entry<K,V>>, Serializable

线程安全的ReferenceMap实现 参考：jdk.management.resource.internal.WeakKeyConcurrentHashMap

Since:

Java 17+

Author:

Kimi Liu

See Also:

• Serialized Form

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor	Description
ReferenceMap(ConcurrentMap<Reference<K>,V> raw, References.Type referenceType)	构造

Method Summary

Modifier and Type	Method	Description
void	clear()
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()
void	forEach(BiConsumer<? super K,? super V> action)
V	get(Object key)
boolean	isEmpty()
Iterator<Map.Entry<K,V>>	iterator()
Set<K>	keySet()
V	merge(K key, V value, BiFunction<? super V,? super V,? extends V> remappingFunction)
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> m)
V	putIfAbsent(K key, V value)
V	remove(Object key)
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)
void	setPurgeListener(BiConsumer<Reference<? extends K>,V> purgeListener)	设置对象回收清除监听
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.concurrent.ConcurrentMap

getOrDefault

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Details

ReferenceMap

public ReferenceMap(ConcurrentMap<Reference<K>,V> raw,
 References.Type referenceType)

构造

Parameters:

raw - ConcurrentMap实现

referenceType - Reference类型

Method Details

setPurgeListener

public void setPurgeListener(BiConsumer<Reference<? extends K>,V> purgeListener)

设置对象回收清除监听

Parameters:

purgeListener - 监听函数

size

public int size()

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

get

public V get(Object key)

Specified by:

get 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>

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

putIfAbsent

public V putIfAbsent(K key,
 V value)

Specified by:

putIfAbsent in interface ConcurrentMap<K,V>

Specified by:

putIfAbsent in interface Map<K,V>

putAll

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

Specified by:

putAll in interface Map<K,V>

replace

public V replace(K key,
 V value)

Specified by:

replace in interface ConcurrentMap<K,V>

Specified by:

replace in interface Map<K,V>

replace

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

Specified by:

replace in interface ConcurrentMap<K,V>

Specified by:

replace in interface Map<K,V>

replaceAll

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

Specified by:

replaceAll in interface ConcurrentMap<K,V>

Specified by:

replaceAll in interface Map<K,V>

computeIfAbsent

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

Specified by:

computeIfAbsent in interface ConcurrentMap<K,V>

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 ConcurrentMap<K,V>

Specified by:

computeIfPresent in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

remove

public boolean remove(Object key,
 Object value)

Specified by:

remove in interface ConcurrentMap<K,V>

Specified by:

remove 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>

forEach

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

Specified by:

forEach in interface ConcurrentMap<K,V>

Specified by:

forEach in interface Map<K,V>

iterator

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

Specified by:

iterator in interface Iterable<K>

compute

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

Specified by:

compute in interface ConcurrentMap<K,V>

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 ConcurrentMap<K,V>

Specified by:

merge in interface Map<K,V>