See: Description
Interface | Description |
---|---|
AsyncCacheLoader<K,V> |
Computes or retrieves values asynchronously, based on a key, for use in populating a
AsyncLoadingCache . |
AsyncLoadingCache<K,V> |
A semi-persistent mapping from keys to values.
|
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 a
LoadingCache or
AsyncLoadingCache . |
CacheWriter<K,V> |
Communicates the write or deletion of a value, based on a key, to an external resource.
|
Expiry<K,V> |
Calculates when cache entries expire.
|
LoadingCache<K,V> |
A semi-persistent mapping from keys to values.
|
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 fixed expiration policy.
|
Policy.VarExpiration<K,V> |
The low-level operations for a cache with a variable expiration policy.
|
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.
|
Class | Description |
---|---|
Caffeine<K,V> |
A builder of
AsyncLoadingCache , LoadingCache , and Cache instances
having a combination of the following features:
automatic loading of entries into the cache, optionally asynchronously
size-based eviction when a maximum is exceeded based on frequency and recency
time-based expiration of entries, measured since last access or last write
asynchronously refresh when the first stale request for an entry occurs
keys automatically wrapped in weak references
values automatically wrapped in weak or
soft references
writes propagated to an external resource
notification of evicted (or otherwise removed) entries
accumulation of cache access statistics
|
CaffeineSpec |
A specification of a
Caffeine builder configuration. |
Enum | Description |
---|---|
RemovalCause |
The reason why a cached entry was removed.
|
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
.