Value Members

1.  final def !=(arg0: Any): Boolean

   Definition Classes

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2.  final def ##: Int

   Definition Classes

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3.  final def ==(arg0: Any): Boolean

   Definition Classes

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4.  def apply[A, B](f: (A) => B): (A) => B

   Thread-safe memoization for a function.

   Thread-safe memoization for a function.

   This works like a lazy val indexed by the input value. The memo is held as part of the state of the returned function, so keeping a reference to the function will keep a reference to the (unbounded) memo table. The memo table will never forget a result, and will retain a reference to the corresponding input values as well.

   If the computation has side-effects, they will happen exactly once per input, even if multiple threads attempt to memoize the same input at one time, unless the computation throws an exception. If an exception is thrown, then the result will not be stored, and the computation will be attempted again upon the next access. Only one value will be computed at a time. The overhead required to ensure that the effects happen only once is paid only in the case of a miss (once per input over the life of the memo table). Computations for different input values will not block each other.

   The combination of these factors means that this method is useful for functions that will only ever be called on small numbers of inputs, are expensive compared to a hash lookup and the memory overhead, and will be called repeatedly.

5.  final def asInstanceOf[T0]: T0

   Definition Classes

   Any

6.  def classValue[T](f: (Class[_]) => T): (Class[_]) => T

   Thread-safe memoization for a function taking Class objects, using java.lang.ClassValue.

   Thread-safe memoization for a function taking Class objects, using java.lang.ClassValue.

   T

   the return type of the function

   f

   the function to memoize using a ClassValue

   returns

   a memoized function over classes that stores memoized values in a ClassValue

7.  def clone(): AnyRef

   Attributes

   protected[lang]

   Definition Classes

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   Annotations

   @throws(classOf[java.lang.CloneNotSupportedException]) @native()

8.  final def eq(arg0: AnyRef): Boolean

   Definition Classes

   AnyRef

9.  def equals(arg0: AnyRef): Boolean

   Definition Classes

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10.  def finalize(): Unit

    Attributes

    protected[lang]

    Definition Classes

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    Annotations

    @throws(classOf[java.lang.Throwable])

11.  def function2[A, B, C](f: (A, B) => C): (A, B) => C

    Thread-safe memoization for a Function2.

12.  final def getClass(): Class[_ <: AnyRef]

    Definition Classes

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    Annotations

    @native()

13.  def hashCode(): Int

    Definition Classes

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    Annotations

    @native()

14.  final def isInstanceOf[T0]: Boolean

    Definition Classes

    Any

15.  final def ne(arg0: AnyRef): Boolean

    Definition Classes

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16.  final def notify(): Unit

    Definition Classes

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    Annotations

    @native()

17.  final def notifyAll(): Unit

    Definition Classes

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    @native()

18.  def snappable[A, B](f: (A) => B): Snappable[A, B]

    Produces com.twitter.util.Memoize.Snappable, thread-safe memoization for a function.

19.  final def synchronized[T0](arg0: => T0): T0

    Definition Classes

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20.  def toString(): String

    Definition Classes

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21.  final def wait(): Unit

    Definition Classes

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    Annotations

    @throws(classOf[java.lang.InterruptedException])

22.  final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes

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    Annotations

    @throws(classOf[java.lang.InterruptedException])

23.  final def wait(arg0: Long): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws(classOf[java.lang.InterruptedException]) @native()