util

Type Members

1. abstract class AbstractClosable extends Closable

   Abstract Closable class for Java compatibility.

2. abstract class AbstractCloseAwaitably extends AbstractClosable with Awaitable[BoxedUnit]

3. abstract class AbstractEvent[T] extends Event[T]

   Abstract Event class for Java compatibility.

4. abstract class AbstractVar[T] extends Var[T]

   Abstract Var class for Java compatibility.

5. abstract class AbstractWitness[T] extends Witness[T]

   Abstract Witness class for Java compatibility.

6. final class Activities extends AnyRef

7. case class Activity[+T](run: Var[State[T]]) extends Product with Serializable

   An Activity is a handle to a concurrently running process, producing T-typed values.

8. trait Awaitable[+T] extends AnyRef

   Wait for the result of some action.

9. class Batcher[In, Out] extends (In) ⇒ Future[Out]

   Provides an interface for working with a batched com.twitter.util.Future

10. class BoundedStack[A] extends Seq[A]

    A "stack" with a bounded size.

11. trait Cancellable extends AnyRef

    Defines a trait that makes the underlying object *cancellable*.

12. class CancellableSink extends Cancellable

13. trait Closable extends AnyRef

    Closable is a mixin trait to describe a closable resource.

14. final class Closables extends AnyRef

15. trait CloseAwaitably extends CloseAwaitably0[Unit]

    A mixin to make an com.twitter.util.Awaitable out of a com.twitter.util.Closable.

16. trait Codec[T, S] extends Bijection[T, S] with Encoder[T, S] with Decoder[T, S]

    A base trait for all Codecs that translate a type T into a serialized form S

17. abstract class Command[-T1] extends (T1) ⇒ Unit

18. class ConstFuture[A] extends Future[A]

    A Future that is already completed.

19. class CountDownLatch extends AnyRef

20. class Credentials extends AnyRef

    Java interface to Credentials.

21. trait Decoder[T, S] extends AnyRef

    A base trait for decoders for type T from a serialized form S

22. trait DecoderCompanion extends AnyRef

23. trait Diff[CC[_], T] extends AnyRef

    A Diff stores the necessary instructions required to bring two version of a data structure into agreement.

24. trait Diffable[CC[_]] extends AnyRef

    A type class that tells how to compute a Diff between two versions of a collection CC[T].

25. trait Disposable[+T] extends AnyRef

    com.twitter.util.Disposable represents a live resource that must be disposed after use.

26. class DoubleTrouble extends Exception

27. sealed class Duration extends TimeLike[Duration] with Serializable

    A Duration represents the span between two points in time.

28. trait Encoder[T, S] extends (T) ⇒ S

    A base trait for encoders of type T into a serialized form S

29. trait EncoderCompanion extends AnyRef

30. trait Event[+T] extends AnyRef

    Events are instantaneous values, defined only at particular instants in time (cf.

31. final class Events extends AnyRef

32. abstract class ExceptionalFunction[-T1, +R] extends Function[T1, R]

33. abstract class ExceptionalFunction0[+R] extends Function0[R]

34. class ExecutorServiceFuturePool extends FuturePool

    A FuturePool implementation backed by an java.util.concurrent.ExecutorService.

35. trait Extractable[T] extends AnyRef

36. abstract class FactoryPool[A] extends Pool[A]

37. abstract class Function[-T1, +R] extends PartialFunction[T1, R]

    This class is for Java friendliness.

38. abstract class Function0[+R] extends () ⇒ R

39. abstract class Function2[-T1, -T2, +R] extends (T1, T2) ⇒ R

40. abstract class Future[+A] extends Awaitable[A]

    A computation evaluated asynchronously.

41. class FutureCancelledException extends Exception

42. trait FutureEventListener[T] extends AnyRef

    An alternative interface for handling Future Events.

43. class FutureNonLocalReturnControl extends Exception

44. trait FuturePool extends AnyRef

    A FuturePool executes tasks asynchronously, typically using a pool of worker threads.

45. class FuturePools extends AnyRef

46. class FutureTask[A] extends Promise[A] with Runnable

47. abstract class FutureTransformer[-A, +B] extends AnyRef

    An alternative interface for performing Future transformations; that is, converting a Future[A] to a Future[B].

48. class InterruptibleExecutorServiceFuturePool extends ExecutorServiceFuturePool

    A FuturePool backed by a java.util.concurrent.ExecutorService that supports cancellation.

49. trait JavaSingleton extends AnyRef

    A mixin to allow scala objects to be used from java.

50. class JavaTimer extends Timer

    A Timer that is implemented via a java.util.Timer.

51. class LastWriteWinsQueue[A] extends Queue[A]

    An implementation of java.

52. final class Local[T] extends AnyRef

    A Local is a ThreadLocal whose scope is flexible.

53. trait Managed[+T] extends AnyRef

    Managed[T] is a resource of type T which lifetime is explicitly managed.

54. class MockTimer extends Timer

    Exceedingly useful for writing well-behaved tests that need control over a Timer.

55. trait Monitor extends AnyRef

    A Monitor is a composable exception handler.

56. case class MonitorException(handlingExc: Throwable, monitorExc: Throwable) extends Exception with Product with Serializable

    Wraps an exception that happens when handling another exception in a monitor.

57. class NoFuture extends Future[Nothing]

    A future with no future (never completes).

58. trait NoStacktrace extends Exception

59. class NullTimer extends Timer

    A NullTimer is not a timer at all: it invokes all tasks immediately and inline.

60. trait Pool[A] extends AnyRef

61. class Promise[A] extends Future[A] with Responder[A] with Updatable[Try[A]]

    A writeable com.twitter.util.Future that supports merging.

62. class ReadWriteVar[T] extends UpdatableVar[T]

    Java adaptation of Var[T] with Updatable[T] with Extractable[T].

63. trait ReferenceCountedTimer extends Timer

64. class ReferenceCountingTimer extends ReferenceCountedTimer

65. final case class Return[+R](r: R) extends Try[R] with Product with Serializable

66. class RichU64ByteArray extends AnyRef

67. class RichU64Long extends AnyRef

68. class RichU64String extends AnyRef

    RichU64String parses string as a 64-bit unsigned hexadecimal long, outputting a signed Long or a byte array.

69. class ScheduledThreadPoolTimer extends Timer

70. trait SignalHandler extends AnyRef

71. class SimplePool[A] extends Pool[A]

72. trait StateMachine extends AnyRef

73. trait Stopwatch extends AnyRef

    A stopwatch may be used to measure elapsed time.

74. class StorageUnit extends Ordered[StorageUnit]

    Representation of storage units.

75. class SunSignalHandler extends SignalHandler

76. trait TempFolder extends AnyRef

    Test mixin that creates a temporary thread-local folder for a block of code to execute in.

77. class ThreadStoppingTimer extends Timer

78. final case class Throw[+R](e: Throwable) extends Try[R] with Product with Serializable

79. sealed class Time extends TimeLike[Time] with Serializable

    An absolute point in time, represented as the number of nanoseconds since the Unix epoch.

80. trait TimeControl extends AnyRef

81. class TimeFormat extends AnyRef

    A thread-safe wrapper around a SimpleDateFormat object.

82. trait TimeLike[This <: TimeLike[This]] extends Ordered[This]

    A common trait for time-like values.

83. trait TimeLikeOps[This <: TimeLike[This]] extends AnyRef

84. class TimeoutException extends java.util.concurrent.TimeoutException

85. trait Timer extends AnyRef

    Timers are used to schedule tasks in the future.

86. trait TimerTask extends Closable

    TimerTasks represent pending tasks scheduled by a Timer.

87. abstract class TokenBucket extends AnyRef

    A token bucket is used to control the relative rates of two processes: one fills the bucket, another empties it.

88. sealed abstract class Try[+R] extends AnyRef

    This class represents a computation that can succeed or fail.

89. trait Updatable[T] extends AnyRef

    Denotes an updatable container.

90. trait Var[+T] extends AnyRef

    Trait Var represents a variable.

91. final class Vars extends AnyRef

92. trait Witness[-N] extends AnyRef

    A witness is the recipient of Event.

93. class WitnessedEvent[T] extends Event[T] with Witness[T]

    A Java analog of Event[A]().

94. final class Witnesses extends AnyRef

95. trait Bijection[A, B] extends (A) ⇒ B

    A bijection is a function for which every value in its codomain (set of all possible results) is equivalent to application of the function on a unique value in its domain (all possible inputs).

96. trait Config[T] extends () ⇒ T

    A config object contains vars for configuring an object of type T, and an apply() method which turns this config into an object of type T.

97. class LongOverflowException extends Exception

    Annotations

    @deprecated

    Deprecated

    (Since version 2015-11-16) Use Java's java.lang.ArithmeticException instead

98. class RingBuffer[A] extends Seq[A]

    Annotations

    @deprecated

    Deprecated

    (Since version 2014-10-11) Use com.google.common.collect.EvictingQueue instead