scala.actors

Futures

object Futures extends AnyRef

The Futures object contains methods that operate on futures.

Inherits

  1. AnyRef
  2. Any

Value Members

  1. def alarm(timespan: Long): Future[Nothing]

    Creates a future that resolves after a given time span

    Creates a future that resolves after a given time span.

    timespan

    the time span in ms after which the future resolves

    returns

    the future

  2. def awaitAll(timeout: Long, fts: Future[Any]*): List[Option[Any]]

    Waits until either all futures are resolved or a given time span has passed

    Waits until either all futures are resolved or a given time span has passed. Results are collected in a list of options. The result of a future that resolved during the time span is its value wrapped in Some. The result of a future that did not resolve during the time span is None.

    Note that some of the futures might already have been awaited, in which case their value is returned wrapped in Some. Passing a timeout of 0 causes awaitAll to return immediately.

    timeout

    the time span in ms after which waiting is aborted

    fts

    the futures to be awaited

    returns

    the list of optional future values

  3. def awaitEither[A, B >: A](ft1: Future[A], ft2: Future[B]): B

    Waits for the first result returned by one of two given futures

    Waits for the first result returned by one of two given futures.

    ft1

    the first future

    ft2

    the second future

    returns

    the result of the future that resolves first

  4. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    definition classes: AnyRef ⇐ Any
  5. def future[T](body: ⇒ T): Future[T]

    Arranges for the asynchronous execution of body, returning a future representing the result

    Arranges for the asynchronous execution of body, returning a future representing the result.

    body

    the computation to be carried out asynchronously

    returns

    the future representing the result of the computation

  6. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    definition classes: AnyRef ⇐ Any
  7. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: AnyRef ⇐ Any