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com.google.common.cache (Guava: Google Core Libraries for Java 11.0.1 API)























  
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@ParametersAreNonnullByDefault

Package com.google.common.cache

This package contains caching utilities.

See:


          Description





Interface Summary


AbstractCache.StatsCounter
Accumulates statistics during the operation of a Cache for presentation by Cache.stats().


Cache<K,V>
A semi-persistent mapping from keys to values.


LoadingCache<K,V>
A semi-persistent mapping from keys to values.


RemovalListener<K,V>
An object that can receive a notification when an entry is removed from a cache.


Weigher<K,V>
Calculates the weights of cache entries.


 






Class Summary


AbstractCache<K,V>
This class provides a skeletal implementation of the Cache interface to minimize the
 effort required to implement this interface.


AbstractCache.SimpleStatsCounter
A thread-safe AbstractCache.StatsCounter implementation for use by Cache implementors.


AbstractLoadingCache<K,V>
This class provides a skeletal implementation of the Cache interface to minimize the
 effort required to implement this interface.


CacheBuilder<K,V>
A builder of LoadingCache and Cache instances having any combination of the
 following features:

 
 automatic loading of entries into the cache
 least-recently-used eviction when a maximum size is exceeded
 time-based expiration of entries, measured since last access or last write
 keys automatically wrapped in weak references
 values automatically wrapped in weak or
     soft references
 notification of evicted (or otherwise removed) entries
 


CacheLoader<K,V>
Computes or retrieves values, based on a key, for use in populating a Cache.


CacheStats
Statistics about the performance of a Cache.


ForwardingCache<K,V>
A cache which forwards all its method calls to another cache.


ForwardingCache.SimpleForwardingCache<K,V>
A simplified version of ForwardingCache where subclasses can pass in an already
 constructed Cache as the delegete.


ForwardingLoadingCache<K,V>
A cache which forwards all its method calls to another cache.


ForwardingLoadingCache.SimpleForwardingLoadingCache<K,V>
A simplified version of ForwardingLoadingCache where subclasses can pass in an already
 constructed LoadingCache as the delegete.


RemovalListeners
A collection of common removal listeners.


RemovalNotification<K,V>
A notification of the removal of a single entry.


 






Enum Summary


RemovalCause
The reason why a cached entry was removed.


 






Exception Summary


CacheLoader.InvalidCacheLoadException
Thrown to indicate that an invalid response was returned from a call to CacheLoader.


 



Package com.google.common.cache Description



This package contains caching utilities.

 
The core interface used to represent caches is Cache.
 In-memory caches can be configured and created using
 CacheBuilder, with cache entries being loaded by
 CacheLoader. Statistics about cache performance are exposed using
 CacheStats.

 
This package is a part of the open-source
 Guava libraries.




Author:
  Charles Fry












  
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Copyright © 2010-2012. All Rights Reserved.

Interface Summary
AbstractCache.StatsCounter	Accumulates statistics during the operation of a `Cache` for presentation by `Cache.stats()`.
Cache<K,V>	A semi-persistent mapping from keys to values.
LoadingCache<K,V>	A semi-persistent mapping from keys to values.
RemovalListener<K,V>	An object that can receive a notification when an entry is removed from a cache.
Weigher<K,V>	Calculates the weights of cache entries.

Class Summary
AbstractCache<K,V>	This class provides a skeletal implementation of the `Cache` interface to minimize the effort required to implement this interface.
AbstractCache.SimpleStatsCounter	A thread-safe `AbstractCache.StatsCounter` implementation for use by `Cache` implementors.
AbstractLoadingCache<K,V>	This class provides a skeletal implementation of the `Cache` interface to minimize the effort required to implement this interface.
CacheBuilder<K,V>	A builder of `LoadingCache` and `Cache` instances having any combination of the following features: automatic loading of entries into the cache least-recently-used eviction when a maximum size is exceeded time-based expiration of entries, measured since last access or last write keys automatically wrapped in weak references values automatically wrapped in weak or soft references notification of evicted (or otherwise removed) entries
CacheLoader<K,V>	Computes or retrieves values, based on a key, for use in populating a `Cache`.
CacheStats	Statistics about the performance of a `Cache`.
ForwardingCache<K,V>	A cache which forwards all its method calls to another cache.
ForwardingCache.SimpleForwardingCache<K,V>	A simplified version of `ForwardingCache` where subclasses can pass in an already constructed `Cache` as the delegete.
ForwardingLoadingCache<K,V>	A cache which forwards all its method calls to another cache.
ForwardingLoadingCache.SimpleForwardingLoadingCache<K,V>	A simplified version of `ForwardingLoadingCache` where subclasses can pass in an already constructed `LoadingCache` as the delegete.
RemovalListeners	A collection of common removal listeners.
RemovalNotification<K,V>	A notification of the removal of a single entry.