Class

com.twitter.algebird.util

TunnelMonoid

Related Doc: package util

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class TunnelMonoid[V] extends Monoid[Tunnel[V]]

This Monoid allows code to depends on the results of asynchronous computation. It is relatively common to have code which takes a Monoid and elements, but applies the computation in an opaque way (a cache, for example). This allows the code handing over the elements (in this case, Tunnel objects) to depend on the result of the Monoid's computation. Note that this code does not depend on any particular Monoid -- that dependency is strictly when the Tunnel objects are created. This is the async analogue of Function1Monoid.

Source
TunnelMonoid.scala
Linear Supertypes
Monoid[Tunnel[V]], Semigroup[Tunnel[V]], Serializable, AnyRef, Any
Type Hierarchy
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Inherited
  1. TunnelMonoid
  2. Monoid
  3. Semigroup
  4. Serializable
  5. AnyRef
  6. Any
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Visibility
  1. Public
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Instance Constructors

  1. new TunnelMonoid()

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Value Members

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

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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

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    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  5. def assertNotZero(v: Tunnel[V]): Unit

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    Definition Classes
    Monoid
  6. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  7. final def eq(arg0: AnyRef): Boolean

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

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    Definition Classes
    AnyRef → Any
  9. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]

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

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

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    Definition Classes
    Any
  13. def isNonZero(v: Tunnel[V]): Boolean

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    Definition Classes
    TunnelMonoidMonoid
  14. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  15. def nonZeroOption(v: Tunnel[V]): Option[Tunnel[V]]

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    Definition Classes
    Monoid
  16. final def notify(): Unit

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

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    Definition Classes
    AnyRef
  18. def plus(older: Tunnel[V], newer: Tunnel[V]): Tunnel[V]

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    Combines two T instances associatively.

    Combines two T instances associatively.

    returns

    result of combining l and r

    Definition Classes
    TunnelMonoidSemigroup
  19. def sum(vs: TraversableOnce[Tunnel[V]]): Tunnel[V]

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    Definition Classes
    Monoid
  20. def sumOption(iter: TraversableOnce[Tunnel[V]]): Option[Tunnel[V]]

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    Returns an instance of T calculated by summing all instances in iter in one pass.

    Returns an instance of T calculated by summing all instances in iter in one pass. Returns None if iter is empty, else Some[T].

    iter

    instances of T to be combined

    returns

    None if iter is empty, else an option value containing the summed T

    Definition Classes
    Semigroup
    Note

    Override if there is a faster way to compute this sum than iter.reduceLeftOption using plus.

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

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    Definition Classes
    AnyRef
  22. def toString(): String

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

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

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. def zero: Tunnel[V]

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    Returns the identity element of T for plus.

    Returns the identity element of T for plus.

    Definition Classes
    TunnelMonoidMonoid

Inherited from Monoid[Tunnel[V]]

Inherited from Semigroup[Tunnel[V]]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped