Package org.aksw.commons.cache.async

Class AsyncClaimingCacheWithTransformValue<K,V1,V2>

java.lang.Object

org.aksw.commons.cache.async.AsyncClaimingCacheWithTransformValue<K,V1,V2>

All Implemented Interfaces:

AsyncClaimingCache<K,V2>

public class AsyncClaimingCacheWithTransformValue<K,V1,V2>
extends Object
implements AsyncClaimingCache<K,V2>

Field Summary

Fields

Modifier and Type	Field	Description
protected AsyncClaimingCache<K,V1>	delegate
protected Function<? super V1,? extends V2>	transform

Constructor Summary

Constructors

Constructor	Description
AsyncClaimingCacheWithTransformValue(AsyncClaimingCache<K,V1> delegate, Function<? super V1,? extends V2> transform)

Method Summary

Modifier and Type	Method	Description
Disposable	addEvictionGuard(Predicate<? super K> predicate)	Protect eviction of certain keys as long as the guard is not disposed.
RefFuture<V2>	claim(K key)	Claim a reference to the key's entry.
RefFuture<V2>	claimIfPresent(K key)	Cannot raise an ExecutionException because it does not trigger loading
static <K, V1, V2> AsyncClaimingCache<K,V2>	create(AsyncClaimingCache<K,V1> delegate, Function<? super V1,? extends V2> transform)
void	invalidateAll()

Methods inherited from class java.lang.Object

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

Field Details

delegate

protected AsyncClaimingCache<K,V1> delegate

transform

protected Function<? super V1,? extends V2> transform

Constructor Details

AsyncClaimingCacheWithTransformValue

public AsyncClaimingCacheWithTransformValue(AsyncClaimingCache<K,V1> delegate,
 Function<? super V1,? extends V2> transform)

Method Details

create

public static <K,
V1,
V2> AsyncClaimingCache<K,V2> create(AsyncClaimingCache<K,V1> delegate,
 Function<? super V1,? extends V2> transform)

claim

public RefFuture<V2> claim(K key)

Description copied from interface: AsyncClaimingCache

Claim a reference to the key's entry.

Specified by:

claim in interface AsyncClaimingCache<K,V1>

Returns:

claimIfPresent

public RefFuture<V2> claimIfPresent(K key)

Description copied from interface: AsyncClaimingCache

Cannot raise an ExecutionException because it does not trigger loading

Specified by:

claimIfPresent in interface AsyncClaimingCache<K,V1>

invalidateAll

public void invalidateAll()

Specified by:

invalidateAll in interface AsyncClaimingCache<K,V1>

addEvictionGuard

public Disposable addEvictionGuard(Predicate<? super K> predicate)

Description copied from interface: AsyncClaimingCache

Protect eviction of certain keys as long as the guard is not disposed. Disposable may immediately evict all no longer guarded items

Specified by:

addEvictionGuard in interface AsyncClaimingCache<K,V1>