br.com.caelum.vraptor.cache

Class DefaultCacheStore<K,V>

java.lang.Object

br.com.caelum.vraptor.cache.DefaultCacheStore<K,V>

All Implemented Interfaces:

CacheStore<K,V>

@Default
 @Dependent
public class DefaultCacheStore<K,V>
extends Object
implements CacheStore<K,V>

Constructor Summary

Constructors

Constructor and Description
DefaultCacheStore()

Method Summary

Modifier and Type	Method and Description
V	fetch(K key) Fetches the value under the key
V	fetch(K key, Callable<V> valueProvider) Fetches the value under the key.
V	write(K key, V value) Writes a value on the cache

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultCacheStore

public DefaultCacheStore()

Method Detail

fetch

public V fetch(K key,
               Callable<V> valueProvider)

Description copied from interface: CacheStore

Fetches the value under the key. If no value is set, valueProvider is used to compute a value for the key. Once the value is computed, it is stored on the cache.

Specified by:

fetch in interface CacheStore<K,V>

Returns:

the stored or the new value for the provided key.

write

public V write(K key,
               V value)

Description copied from interface: CacheStore

Writes a value on the cache

Specified by:

write in interface CacheStore<K,V>

Returns:

the previous stored value, null if none.

fetch

public V fetch(K key)

Description copied from interface: CacheStore

Fetches the value under the key

Specified by:

fetch in interface CacheStore<K,V>

Returns:

the stored value for the key, or null.