trait Thereafter[F[_]] extends AnyRef

Typeclass for computations with an operation that can run a side effect after the computation has finished.

The typeclass abstracts the following patterns so that it can be used for types other than scala.concurrent.Future.

future.transform { result => val () = body(result); result } // synchronous body
future.transform { result => body(result).transform(_ => result) } // asynchronous body

Usage: 

import com.digitalasset.canton.util.Thereafter.syntax.*

myAsyncComputation.thereafter(result => ...)

F

The computation's type functor.

Linear Supertypes
AnyRef, Any
Known Subclasses
FutureUnlessShutdownThereafter, FutureThereafter
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Type Members

  1. abstract type Content[_]

    The container type for computation result.

Abstract Value Members

  1. abstract def thereafter[A](f: F[A])(body: (Content[A]) => Unit)(implicit ec: ExecutionContext): F[A]

    Runs body after the computation f has completed.

    Runs body after the computation f has completed.

    returns

    The computation that results from chaining f before body. Completes only after body has run. If body completes normally, the result of the computation is the same as f's result. If body throws, the result includes the thrown exception.

  2. abstract def thereafterF[A](f: F[A])(body: (Content[A]) => Future[Unit])(implicit ec: ExecutionContext): F[A]

    runs body after the computation f has completed

    runs body after the computation f has completed

    returns

    The computation that results from chaining f before body. Completes only after body has run. If body completes normally, the result of the computation is the same as f's result. If body throws, the result includes the thrown exception. If body produces a failed computation, the result includes the thrown exception.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
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    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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    Any
  5. def clone(): AnyRef
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    protected[lang]
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  7. def equals(arg0: AnyRef): Boolean
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  8. final def getClass(): Class[_ <: AnyRef]
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    @native() @HotSpotIntrinsicCandidate()
  9. def hashCode(): Int
    Definition Classes
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    @native() @HotSpotIntrinsicCandidate()
  10. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  11. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  12. final def notify(): Unit
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    @native() @HotSpotIntrinsicCandidate()
  13. final def notifyAll(): Unit
    Definition Classes
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    @native() @HotSpotIntrinsicCandidate()
  14. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
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  15. def toString(): String
    Definition Classes
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  16. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws(classOf[java.lang.InterruptedException])
  17. final def wait(arg0: Long): Unit
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    @throws(classOf[java.lang.InterruptedException]) @native()
  18. final def wait(): Unit
    Definition Classes
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    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
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    @throws(classOf[java.lang.Throwable]) @Deprecated @Deprecated
    Deprecated

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