class LoadingCache[K, V] extends Cache[K, V]
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Instance Constructors
- new LoadingCache(underlying: benmanes.caffeine.cache.LoadingCache[K, V])
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def asMap(): Map[K, V]
Returns a view of the entries stored in this cache as a thread-safe map.
Returns a view of the entries stored in this cache as a thread-safe map. Modifications made to the map directly affect the cache.
- returns
a thread-safe view of this cache
- Definition Classes
- Cache
- def cleanUp(): Unit
Performs any pending maintenance operations needed by the cache.
Performs any pending maintenance operations needed by the cache. Exactly which activities are performed -- if any -- is implementation-dependent.
- Definition Classes
- Cache
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def estimatedSize(): Long
Returns the approximate number of entries in this cache.
Returns the approximate number of entries in this cache.
- returns
the estimated number of mappings
- Definition Classes
- Cache
- def get(key: K): V
Returns the value associated with
keyin this cache, obtaining that value fromloaderif necessary.Returns the value associated with
keyin this cache, obtaining that value fromloaderif necessary.If another call to this method is currently loading the value for
key, this thread simply waits for that thread to finish and returns its loaded value. Note that multiple threads can concurrently load values for distinct keys.- key
key with which the specified value is to be associated
- returns
the current (existing or computed) value associated with the specified key
- Exceptions thrown
java.lang.IllegalArgumentExceptionif the computation detectably attempts a recursive update to this cache that would otherwise never completejava.lang.RuntimeExceptionor Error if theCacheLoaderdoes so, in which case the mapping is left unestablishedjava.util.concurrent.CompletionExceptionif a checked exception was thrown while loading the value
- def get(key: K, mappingFunction: (K) => V): V
Returns the value associated with
keyin this cache, obtaining that value frommappingFunctionif necessary.Returns the value associated with
keyin this cache, obtaining that value frommappingFunctionif necessary. This method provides a simple substitute for the conventional "if cached, return; otherwise create, cache and return" pattern.- key
key with which the specified value is to be associated
- mappingFunction
the function to compute a value
- returns
the current (existing or computed) value associated with the specified key
- Definition Classes
- Cache
- Exceptions thrown
java.lang.IllegalStateExceptionif the computation detectably attempts a recursive update to this cache that would otherwise never completejava.lang.RuntimeExceptionor Error if the mappingFunction does so, in which case the mapping is left unestablished
- def getAll(keys: Iterable[K]): Map[K, V]
Returns a map of the values associated with
keys, creating or retrieving those values if necessary.Returns a map of the values associated with
keys, creating or retrieving those values if necessary. The returned map contains entries that were already cached, combined with newly loaded entries.- keys
the keys whose associated values are to be returned
- returns
the mapping of keys to values for the specified keys in this cache
- Exceptions thrown
java.lang.RuntimeExceptionor Error if theloaderdoes sojava.util.concurrent.CompletionExceptionif a checked exception was thrown while loading the value
- def getAll(keys: Iterable[K], mappingFunction: (Iterable[K]) => Map[K, V]): Map[K, V]
Returns the future of a map of the values associated with
keys, creating or retrieving those values if necessary.Returns the future of a map of the values associated with
keys, creating or retrieving those values if necessary. The returned map contains entries that were already cached, combined with newly loaded entries.A single request to the
mappingFunctionis performed for all keys which are not already present in the cache.- keys
the keys whose associated values are to be returned
- mappingFunction
the function to compute the values
- returns
an unmodifiable mapping of keys to values for the specified keys in this cache
- Definition Classes
- Cache
- Exceptions thrown
java.lang.RuntimeExceptionor Error if the mappingFunction does so, in which case the mapping is left unestablished
- def getAllPresent(keys: Iterable[K]): Map[K, V]
Returns a map of the values associated with
keysin this cache.Returns a map of the values associated with
keysin this cache. The returned map will only contain entries which are already present in the cache.- keys
the keys whose associated values are to be returned
- returns
the mapping of keys to values for the specified keys found in this cache
- Definition Classes
- Cache
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def getIfPresent(key: K): Option[V]
Returns the value associated with
keyin this cache, orNoneif there is no cached value forkey.Returns the value associated with
keyin this cache, orNoneif there is no cached value forkey.- key
key whose associated value is to be returned
- returns
an option value containing the value to which the specified key is mapped, or
Noneif this map contains no mapping for the key
- Definition Classes
- Cache
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def invalidate(key: K): Unit
Discards any cached value for key
key.Discards any cached value for key
key.- key
key whose mapping is to be removed from the cache
- Definition Classes
- Cache
- def invalidateAll(): Unit
Discards all entries in the cache.
Discards all entries in the cache.
- Definition Classes
- Cache
- def invalidateAll(keys: Iterable[K]): Unit
Discards any cached values for keys
keys.Discards any cached values for keys
keys.- keys
the keys whose associated values are to be removed
- Definition Classes
- Cache
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def policy(): Policy[K, V]
Returns access to inspect and perform low-level operations on this cache based on its runtime characteristics.
Returns access to inspect and perform low-level operations on this cache based on its runtime characteristics. These operations are optional and dependent on how the cache was constructed and what abilities the implementation exposes.
- returns
access to inspect and perform advanced operations based on the cache's characteristics
- Definition Classes
- Cache
- def put(key: K, value: V): Unit
Associates
valuewithkeyin this cache.Associates
valuewithkeyin this cache. If the cache previously contained a value associated withkey, the old value is replaced byvalue.- key
key with which the specified value is to be associated
- value
value to be associated with the specified key
- Definition Classes
- Cache
- def putAll(map: Map[K, V]): Unit
Copies all of the mappings from the specified map to the cache.
Copies all of the mappings from the specified map to the cache.
- map
mappings to be stored in this cache
- Definition Classes
- Cache
- def refresh(key: K): Future[V]
Loads a new value for the
key, asynchronously.Loads a new value for the
key, asynchronously. While the new value is loading the previous value (if any) will continue to be returned byget(key)unless it is evicted.- key
key with which a value may be associated
- def stats(): CacheStats
Returns a current snapshot of this cache's cumulative statistics.
Returns a current snapshot of this cache's cumulative statistics. All statistics are initialized to zero, and are monotonically increasing over the lifetime of the cache.
- returns
the current snapshot of the statistics of this cache
- Definition Classes
- Cache
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- LoadingCache → Cache → AnyRef → Any
- val underlying: benmanes.caffeine.cache.LoadingCache[K, V]
- Definition Classes
- LoadingCache → Cache
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])