com.google.common.collect
Class ForwardingConcurrentMap<K,V>
java.lang.Object
com.google.common.collect.ForwardingObject
com.google.common.collect.ForwardingMap<K,V>
com.google.common.collect.ForwardingConcurrentMap<K,V>
- All Implemented Interfaces:
- java.util.concurrent.ConcurrentMap<K,V>, java.util.Map<K,V>
@GwtCompatible
public abstract class ForwardingConcurrentMap<K,V>
- extends ForwardingMap<K,V>
- implements java.util.concurrent.ConcurrentMap<K,V>
A concurrent map which forwards all its method calls to another concurrent
map. Subclasses should override one or more methods to modify the behavior of
the backing map as desired per the decorator pattern.
- Since:
- 2.0 (imported from Google Collections Library)
Nested classes/interfaces inherited from interface java.util.Map |
java.util.Map.Entry<K,V> |
Method Summary |
protected abstract java.util.concurrent.ConcurrentMap<K,V> |
delegate()
Returns the backing delegate instance that methods are forwarded to. |
V |
putIfAbsent(K key,
V value)
|
boolean |
remove(java.lang.Object key,
java.lang.Object value)
|
V |
replace(K key,
V value)
|
boolean |
replace(K key,
V oldValue,
V newValue)
|
Methods inherited from class com.google.common.collect.ForwardingMap |
clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString, values |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Map |
clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values |
ForwardingConcurrentMap
protected ForwardingConcurrentMap()
- Constructor for use by subclasses.
delegate
protected abstract java.util.concurrent.ConcurrentMap<K,V> delegate()
- Description copied from class:
ForwardingObject
- Returns the backing delegate instance that methods are forwarded to.
Abstract subclasses generally override this method with an abstract method
that has a more specific return type, such as
ForwardingSet.delegate()
. Concrete subclasses override this method to supply
the instance being decorated.
- Specified by:
delegate
in class ForwardingMap<K,V>
putIfAbsent
public V putIfAbsent(K key,
V value)
- Specified by:
putIfAbsent
in interface java.util.concurrent.ConcurrentMap<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>