com.liferay.portal.kernel.util

Class WeakValueConcurrentHashMap<K,V>

java.lang.Object

com.liferay.portal.kernel.util.WeakValueConcurrentHashMap<K,V>

All Implemented Interfaces:

java.io.Serializable, java.util.concurrent.ConcurrentMap<K,V>, java.util.Map<K,V>

public class WeakValueConcurrentHashMap<K,V>
extends java.lang.Object
implements java.util.concurrent.ConcurrentMap<K,V>, java.io.Serializable

Author:

Shuyang Zhou

See Also:

Serialized Form

Nested Class Summary

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

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
WeakValueConcurrentHashMap()
WeakValueConcurrentHashMap(int initialCapacity)
WeakValueConcurrentHashMap(int initialCapacity, float loadFactor, int concurrencyLevel)
WeakValueConcurrentHashMap(java.util.Map<? extends K,? extends V> map)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set<java.util.Map.Entry<K,V>>	entrySet()
V	get(java.lang.Object key)
boolean	isEmpty()
java.util.Set<K>	keySet()
V	put(K key, V value)
void	putAll(java.util.Map<? extends K,? extends V> map)
V	putIfAbsent(K key, V value)
V	remove(java.lang.Object key)
boolean	remove(java.lang.Object key, java.lang.Object value)
V	replace(K key, V value)
boolean	replace(K key, V oldValue, V newValue)
int	size()
java.util.Collection<V>	values()
protected java.lang.ref.Reference<V>	wrapValue(java.lang.Object key, java.lang.Object value)

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

equals, hashCode

Constructor Detail

WeakValueConcurrentHashMap

public WeakValueConcurrentHashMap()

WeakValueConcurrentHashMap

public WeakValueConcurrentHashMap(int initialCapacity)

WeakValueConcurrentHashMap

public WeakValueConcurrentHashMap(int initialCapacity,
                          float loadFactor,
                          int concurrencyLevel)

WeakValueConcurrentHashMap

public WeakValueConcurrentHashMap(java.util.Map<? extends K,? extends V> map)

Method Detail

clear

public void clear()

Specified by:

clear in interface java.util.Map<K,V>

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<K,V>

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<K,V>

entrySet

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

Specified by:

entrySet in interface java.util.Map<K,V>

get

public V get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<K,V>

keySet

public java.util.Set<K> keySet()

Specified by:

keySet in interface java.util.Map<K,V>

put

public V put(K key,
    V value)

Specified by:

put in interface java.util.Map<K,V>

putAll

public final void putAll(java.util.Map<? extends K,? extends V> map)

Specified by:

putAll in interface java.util.Map<K,V>

putIfAbsent

public V putIfAbsent(K key,
            V value)

Specified by:

putIfAbsent in interface java.util.concurrent.ConcurrentMap<K,V>

remove

public V remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<K,V>

remove

public boolean remove(java.lang.Object key,
             java.lang.Object value)

Specified by:

remove in interface java.util.concurrent.ConcurrentMap<K,V>

replace

public V replace(K key,
        V value)

Specified by:

replace in interface java.util.concurrent.ConcurrentMap<K,V>

replace

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

Specified by:

replace in interface java.util.concurrent.ConcurrentMap<K,V>

size

public int size()

Specified by:

size in interface java.util.Map<K,V>

values

public java.util.Collection<V> values()

Specified by:

values in interface java.util.Map<K,V>

wrapValue

protected java.lang.ref.Reference<V> wrapValue(java.lang.Object key,
                                   java.lang.Object value)