Package org.wildfly.clustering.cache

Interface BiCacheEntryLocator<I,K,V>

Type Parameters:

I - the identifier type of the cache key

K - the key type of the located entry

V - the value type of the located entry

All Superinterfaces:

CacheEntryLocator<I,Map.Entry<K,V>>

public interface BiCacheEntryLocator<I,K,V>
extends CacheEntryLocator<I,Map.Entry<K,V>>

Locates a pair of entries from a cache.

Author:

Paul Ferraro

Method Summary

Modifier and Type	Method	Description
Map.Entry<CompletionStage<K>,CompletionStage<V>>	findEntry(I id)	Locates the value in the cache with the specified identifier.
default CompletionStage<Map.Entry<K,V>>	findValueAsync(I id)	Locates the value in the cache with the specified identifier.
default Map.Entry<CompletionStage<K>,CompletionStage<V>>	tryEntry(I id)	Locates the value in the cache with the specified identifier, if available.
default CompletionStage<Map.Entry<K,V>>	tryValueAsync(I id)	Returns the value for the specified key, if possible without contention.

Methods inherited from interface org.wildfly.clustering.cache.CacheEntryLocator

findValue, tryValue

Method Details

findEntry

Map.Entry<CompletionStage<K>,CompletionStage<V>> findEntry(I id)

Locates the value in the cache with the specified identifier.

Parameters:

id - the cache entry identifier

Returns:

the value of the cache entry, or null if not found.

tryEntry

default Map.Entry<CompletionStage<K>,CompletionStage<V>> tryEntry(I id)

Locates the value in the cache with the specified identifier, if available.

Parameters:

id - the cache entry identifier

Returns:

the value of the cache entry, or null if not found or is in use.

findValueAsync

default CompletionStage<Map.Entry<K,V>> findValueAsync(I id)

Description copied from interface: CacheEntryLocator

Locates the value in the cache with the specified identifier.

Specified by:

findValueAsync in interface CacheEntryLocator<I,K>

Parameters:

id - the cache entry identifier

Returns:

the value of the cache entry, or null if not found.

tryValueAsync

default CompletionStage<Map.Entry<K,V>> tryValueAsync(I id)

Description copied from interface: CacheEntryLocator

Returns the value for the specified key, if possible without contention.

Specified by:

tryValueAsync in interface CacheEntryLocator<I,K>

Parameters:

id - a logical key

Returns:

the value of the cache entry, or null if not found or unavailable.