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

java.lang.Object
  extended by 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

View Source

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