Module jakarta.faces

Package com.sun.faces.util

Class Cache<K,V>

java.lang.Object

com.sun.faces.util.Cache<K,V>

public class Cache<K,V>
extends Object

A concurrent caching mechanism.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Cache.Factory<K,V>	Factory interface for creating various cacheable objects.

Constructor Summary

Constructors

Constructor	Description
Cache(Cache.Factory<K,V> factory)	Constructs this cache using the specified Factory.

Method Summary

Modifier and Type	Method	Description
V	get(K key)	If a value isn't associated with the specified key, a new Callable will be created wrapping the Factory specified via the constructor and passed to a FutureTask.
V	remove(K key)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Cache

public Cache(Cache.Factory<K,V> factory)

Constructs this cache using the specified Factory.

Parameters:

factory - a factory to create or retrieve the element that need to be cached

Method Details

get

public V get(K key)

If a value isn't associated with the specified key, a new Callable will be created wrapping the Factory specified via the constructor and passed to a FutureTask. This task will be passed to the backing ConcurrentMap. When FutureTask.get() is invoked, the Factory will return the new Value which will be cached by the FutureTask.

Parameters:

key - the key the value is associated with

Returns:

the value for the specified key, if any

remove

public V remove(K key)