com.datastax.spark.connector.cql

RefCountedCache

final class RefCountedCache[K, V] extends AnyRef

A lockless cache that caches values for multiple users and destroys them once all users release them. One value can be associated with many keys. Useful for sharing a costly resource.

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Inherited
  1. RefCountedCache
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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Visibility
  1. Public
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Instance Constructors

  1. new RefCountedCache(create: (K) ⇒ V, destroy: (V) ⇒ Any, keys: (K, V) ⇒ Set[K] = ...)

    create

    function to create new objects if not found in cache

    destroy

    function to be called once the value is not used any more

    keys

    function generating additional keys the value should be reachable by

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ->[B](y: B): (RefCountedCache[K, V], B)

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to ArrowAssoc[RefCountedCache[K, V]] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  6. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  7. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  8. def acquire(key: K): V

    Acquires a value associated with key.

    Acquires a value associated with key. If the value was acquired by another thread and is present in the cache, it will be returned from cache. If the value was not found in cache, a new value will be created by invoking create function and will be saved to the cache and associated with key and other keys returned by invoking the keys function on the value.

    Annotations
    @tailrec()
  9. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  10. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  11. def contains(key: K): Boolean

    Returns true if cache contains given key.

  12. def ensuring(cond: (RefCountedCache[K, V]) ⇒ Boolean, msg: ⇒ Any): RefCountedCache[K, V]

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to Ensuring[RefCountedCache[K, V]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: (RefCountedCache[K, V]) ⇒ Boolean): RefCountedCache[K, V]

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to Ensuring[RefCountedCache[K, V]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: Boolean, msg: ⇒ Any): RefCountedCache[K, V]

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to Ensuring[RefCountedCache[K, V]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean): RefCountedCache[K, V]

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to Ensuring[RefCountedCache[K, V]] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  17. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  18. def evict(): Unit

    Removes and destroys unused entries from the cache immediately.

    Removes and destroys unused entries from the cache immediately. Entries with reference count > 0 are not removed.

  19. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  20. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  21. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  22. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  23. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  24. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  25. final def notify(): Unit

    Definition Classes
    AnyRef
  26. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  27. def release(value: V, releaseDelayMillis: Int = 0): Unit

    Releases previously acquired value.

    Releases previously acquired value. Once the value is released by all threads and the releaseDelayMillis timeout passes, the value is destroyed by calling destroy function and removed from the cache.

  28. def shutdown(): Unit

    Shuts down the background deferred release scheduler and forces all pending release tasks to be executed

  29. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  30. def toString(): String

    Definition Classes
    AnyRef → Any
  31. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  32. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  33. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  34. def [B](y: B): (RefCountedCache[K, V], B)

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to ArrowAssoc[RefCountedCache[K, V]] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (refCountedCache: StringAdd).self
    Definition Classes
    StringAdd
  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (refCountedCache: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: RefCountedCache[K, V]

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to ArrowAssoc[RefCountedCache[K, V]] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (refCountedCache: ArrowAssoc[RefCountedCache[K, V]]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: RefCountedCache[K, V]

    Implicit information
    This member is added by an implicit conversion from RefCountedCache[K, V] to Ensuring[RefCountedCache[K, V]] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (refCountedCache: Ensuring[RefCountedCache[K, V]]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from RefCountedCache[K, V] to StringAdd

Inherited by implicit conversion any2stringfmt from RefCountedCache[K, V] to StringFormat

Inherited by implicit conversion any2ArrowAssoc from RefCountedCache[K, V] to ArrowAssoc[RefCountedCache[K, V]]

Inherited by implicit conversion any2Ensuring from RefCountedCache[K, V] to Ensuring[RefCountedCache[K, V]]

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