Package com.github.benmanes.caffeine.cache
This package contains caching utilities.
The core interface used to represent caches is Cache.
A cache may be specialized as either a LoadingCache
or AsyncLoadingCache.
In-memory caches can be configured and created using
Caffeine. The cache entries may be loaded by
CacheLoader, weighed by
Weigher, and on removal forwarded to
RemovalListener. Statistics about cache performance
are exposed using CacheStats.
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Interface Summary Interface Description AccessOrderDeque.AccessOrder<T extends AccessOrderDeque.AccessOrder<T>> An element that is linked on theDeque.AsyncCacheLoader<K,V> Computes or retrieves values asynchronously, based on a key, for use in populating aAsyncLoadingCache.AsyncLoadingCache<K,V> A semi-persistent mapping from keys to values.Buffer<E> A multiple-producer / single-consumer buffer that rejects new elements if it is full or fails spuriously due to contention.Cache<K,V> A semi-persistent mapping from keys to values.CacheLoader<K,V> Computes or retrieves values, based on a key, for use in populating aLoadingCacheorAsyncLoadingCache.CacheWriter<K,V> Communicates the write or deletion of a value, based on a key, to an external resource.LinkedDeque<E> A linked list extension of theDequeinterface where the link pointers are tightly integrated with the element.LinkedDeque.PeekingIterator<E> LoadingCache<K,V> A semi-persistent mapping from keys to values.LocalCache<K,V> An in-memory cache providing thread safety and atomicity guarantees.LocalLoadingCache<C extends LocalCache<K,V>,K,V> This class provides a skeletal implementation of theLoadingCacheinterface to minimize the effort required to implement aLocalCache.LocalManualCache<C extends LocalCache<K,V>,K,V> This class provides a skeletal implementation of theCacheinterface to minimize the effort required to implement aLocalCache.Node<K,V> An entry in the cache containing the key, value, weight, access, and write metadata.Policy<K,V> An access point for inspecting and performing low-level operations based on the cache's runtime characteristics.Policy.Eviction<K,V> The low-level operations for a cache with a size-based eviction policy.Policy.Expiration<K,V> The low-level operations for a cache with a expiration policy.References.InternalReference<E> A weak or soft reference that includes the entry's key reference.RemovalListener<K,V> An object that can receive a notification when an entry is removed from a cache.Ticker A time source that returns a time value representing the number of nanoseconds elapsed since some fixed but arbitrary point in time.Weigher<K,V> Calculates the weights of cache entries.WriteOrderDeque.WriteOrder<T extends WriteOrderDeque.WriteOrder<T>> An element that is linked on theDeque. -
Enum Summary Enum Description Caffeine.Strength DisabledBuffer DisabledTicker DisabledWriter NodeFactory WARNING: GENERATED CODE A factory for cache nodes optimized for a particular configuration.RemovalCause The reason why a cached entry was removed.SingletonWeigher SystemTicker