Packages

abstract class ConcurrentCache[Key, Value] extends Cache[Key, Value]

A cache that is concurrency-safe. This means it is able to look up a value, and if it does not exist, populate the value at that key, in a single, atomic action.

Key

The type of the key used to look up values.

Value

The type of the cached value.

Linear Supertypes
Cache[Key, Value], AnyRef, Any
Known Subclasses
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  2. Cache
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new ConcurrentCache()

Abstract Value Members

  1. abstract def getIfPresent(key: Key): Option[Value]

    Retrieve a value by key, if it's present.

    Retrieve a value by key, if it's present.

    Definition Classes
    Cache
  2. abstract def getOrAcquire(key: Key, acquire: (Key) => Value): Value

    Retrieve a value by key if it's present.

    Retrieve a value by key if it's present. If there is no value, atomically computes the value using the provided function, writes it to the cache, and returns it.

  3. abstract def invalidateAll(): Unit

    Removes all cached entries.

    Removes all cached entries.

    Definition Classes
    Cache
  4. abstract def put(key: Key, value: Value): Unit

    Put a value into the cache.

    Put a value into the cache.

    This may cause values to be evicted at some point in the future.

    Definition Classes
    Cache
  5. abstract def putAll(mappings: Map[Key, Value]): Unit

    Put all the entries of mappings into the cache.

    Put all the entries of mappings into the cache.

    Definition Classes
    Cache

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @IntrinsicCandidate()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  9. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  10. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  11. def mapValues[NewValue](mapAfterReading: (Value) => NewValue, mapBeforeWriting: (NewValue) => Option[Value]): Cache[Key, NewValue]

    Transform values when reading from or writing to the cache.

    Transform values when reading from or writing to the cache.

    Optionally allows the mapping to discard values by returning scala.None when transforming before writing.

    NewValue

    The new value type.

    mapAfterReading

    Transform values after reading.

    mapBeforeWriting

    Transform values before writing. Discards the value if the result is scala.None.

    returns

    A wrapped cache, backed by this cache.

    Definition Classes
    Cache
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  15. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  16. def toString(): String
    Definition Classes
    AnyRef → Any
  17. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  18. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  19. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated @Deprecated
    Deprecated

Inherited from Cache[Key, Value]

Inherited from AnyRef

Inherited from Any

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