Packages

trait Cache[K, V] extends AnyRef

Annotations
@ApiMayChange() @DoNotInherit()
Source
Cache.java
Linear Supertypes
AnyRef, Any
Known Subclasses
Cache
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Cache
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def clear(): Unit

    Clears the cache by removing all entries.

  2. abstract def getFuture(key: K, genValue: Creator[CompletionStage[V]]): CompletionStage[V]

    Returns either the cached CompletionStage for the given key or evaluates the given value generating function producing a CompletionStage<V>.

  3. abstract def getKeys(): Set[K]

    Returns the set of keys in the cache, in no particular order Should return in roughly constant time.

    Returns the set of keys in the cache, in no particular order Should return in roughly constant time. Note that this number might not reflect the exact keys of active, unexpired cache entries, since expired entries are only evicted upon next access (or by being thrown out by a capacity constraint).

  4. abstract def getOptional(key: K): Optional[CompletionStage[V]]

    Retrieves the CompletionStage instance that is currently in the cache for the given key.

    Retrieves the CompletionStage instance that is currently in the cache for the given key. Returns None if the key has no corresponding cache entry.

  5. abstract def getOrCreateStrict(key: K, block: Creator[V]): CompletionStage[V]

    Returns either the cached CompletionStage for the given key or the given value as a CompletionStage

  6. abstract def getOrFulfil(key: K, f: Procedure[CompletableFuture[V]]): CompletionStage[V]

    Returns either the cached CompletionStage for the key, or evaluates the given function which should lead to eventual completion of the completable future.

  7. abstract def remove(key: K): Unit

    Removes the cache item for the given key.

  8. abstract def size(): Int

    Returns the upper bound for the number of currently cached entries.

    Returns the upper bound for the number of currently cached entries. Note that this number might not reflect the exact number of active, unexpired cache entries, since expired entries are only evicted upon next access (or by being thrown out by a capacity constraint).

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toany2stringadd[Cache[K, V]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Cache[K, V], B)
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toArrowAssoc[Cache[K, V]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
  8. def ensuring(cond: (Cache[K, V]) => Boolean, msg: => Any): Cache[K, V]
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toEnsuring[Cache[K, V]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (Cache[K, V]) => Boolean): Cache[K, V]
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toEnsuring[Cache[K, V]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: => Any): Cache[K, V]
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toEnsuring[Cache[K, V]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): Cache[K, V]
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toEnsuring[Cache[K, V]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  15. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  16. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  17. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  19. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  20. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  21. def toString(): String
    Definition Classes
    AnyRef → Any
  22. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  23. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  24. 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

    (Since version 9)

  2. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toStringFormat[Cache[K, V]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

  3. def →[B](y: B): (Cache[K, V], B)
    Implicit
    This member is added by an implicit conversion from Cache[K, V] toArrowAssoc[Cache[K, V]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromCache[K, V] to any2stringadd[Cache[K, V]]

Inherited by implicit conversion StringFormat fromCache[K, V] to StringFormat[Cache[K, V]]

Inherited by implicit conversion Ensuring fromCache[K, V] to Ensuring[Cache[K, V]]

Inherited by implicit conversion ArrowAssoc fromCache[K, V] to ArrowAssoc[Cache[K, V]]

Ungrouped