Var

Value Members

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

   

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2. final def ##(): Int

   

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3. final def ==(arg0: Any): Boolean

   

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4. object Sampled

   

5. def apply[T](init: T, e: Event[T]): Var[T]

   

   Constructs a Var from an initial value plus an event stream of changes.

   Constructs a Var from an initial value plus an event stream of changes. Note that this eagerly subscribes to the event stream; it is unsubscribed whenever the returned Var is collected.

6. def apply[T](init: T): Var[T] with Updatable[T] with Extractable[T]

   

   Create a new, updatable Var with an initial value.

   Create a new, updatable Var with an initial value. We call such Vars independent -- derived Vars being dependent on these.

7. final def asInstanceOf[T0]: T0

   

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8. def async[T](empty: T)(update: (Updatable[T]) ⇒ Closable): Var[T]

   

   Create a new Var whose values are provided asynchronously by update.

   Create a new Var whose values are provided asynchronously by update. The returned Var is dormant until it is observed: update is called by-need. Such observations are also reference counted so that simultaneous observervations do not result in multiple invocations of update. When the last observer stops observing, the com.twitter.util.Closable returned from update is closed. Subsequent observations result in a new call to update.

   empty is used to fill the returned Var until update has provided a value. The first observation of the returned Var is synchronous with the call to update--it is guaranteed the the opportunity to fill the Var before the observer sees any value at all.

   Updates from update are ignored after the returned com.twitter.util.Closable is closed.

9. def clone(): AnyRef

   

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   protected[java.lang]

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10. def collect[T <: AnyRef](vars: List[Var[T]]): Var[List[T]]

    

    Collect a List of Vars into a new Var of List.

    Collect a List of Vars into a new Var of List.

    vars

    a java.util.List of Vars

    returns

    a Var[java.util.List[A]] containing the collected values from vars.

11. def collect[T, CC[X] <: Traversable[X]](vars: CC[Var[T]])(implicit newBuilder: CanBuildFrom[CC[T], T, CC[T]], cm: ClassManifest[T]): Var[CC[T]]

    

    Collect a collection of Vars into a Var of collection.

12. final def eq(arg0: AnyRef): Boolean

    

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13. def equals(arg0: Any): Boolean

    

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14. def finalize(): Unit

    

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    protected[java.lang]

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

15. final def getClass(): Class[_]

    

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16. def hashCode(): Int

    

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17. final def isInstanceOf[T0]: Boolean

    

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18. final def ne(arg0: AnyRef): Boolean

    

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19. final def notify(): Unit

    

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20. final def notifyAll(): Unit

    

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21. def sample[T](v: Var[T]): T

    

    Sample the current value of this Var.

    Sample the current value of this Var. Note that this may lead to surprising results for lazily defined Vars: the act of observing a Var may be kick off a process to populate it; the value returned from sample may then reflect an intermediate value.

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

    

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23. def toString(): String

    

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24. def value[T](v: T): Var[T]

    

    Create a new, constant, v-valued Var.

25. final def wait(): Unit

    

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

    

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27. final def wait(arg0: Long): Unit

    

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