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microsite/izumi/izumi.functional/izumi.functional.lifecycle/Lifecycle/MakePair

MakePair

izumi.functional.lifecycle.Lifecycle.MakePair
open class MakePair[F[_], A] extends FromPair[F, A]

Class-based variant of makePair:

 class IntRes extends Lifecycle.MakePair(IO(1000 -> IO.unit))

For binding resources using class syntax in distage.ModuleDef:

 val module = new ModuleDef {
   make[Int].fromResource[IntRes]
 }

Attributes

Graph
Supertypes
trait FromPair[F, A]
trait Lifecycle[F, A]
class Object
trait Matchable
class Any

Members list

Type members

Inherited types

final override type InnerResource = (A, F[Unit])

Attributes

Inherited from:
FromPair

Value members

Constructors

def this(acquire: => F[(A, F[Unit])])

Concrete methods

final override def acquire: F[(A, F[Unit])]

The action in F used to acquire the resource.

The action in F used to acquire the resource.

Attributes

Note

the acquire action is performed uninterruptibly by Lifecycle.SyntaxUse#use and other interpreters, when F is an effect type that supports interruption/cancellation.

Definition Classes

Inherited methods

final def beforeAcquire[G[x] : QuasiApplicative](f: => G[Unit]): Lifecycle[G, A]

Attributes

Inherited from:
Lifecycle
final def beforeRelease[G[x] : QuasiApplicative](f: InnerResource => G[Unit]): Lifecycle[G, A]

Prepend release action to existing

Prepend release action to existing

Attributes

Inherited from:
Lifecycle
final def catchAll[G[x] : QuasiIO, B >: A](recover: Throwable => Lifecycle[G, B]): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final def catchSome[G[x] : QuasiIO, B >: A](recover: PartialFunction[Throwable, Lifecycle[G, B]]): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final def evalMap[G[x] : QuasiPrimitives, B](f: A => G[B]): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final def evalTap[G[x] : QuasiPrimitives](f: A => G[Unit]): Lifecycle[G, A]

Attributes

Inherited from:
Lifecycle
final override def extract[B >: A](resource: (A, F[Unit])): Right[Nothing, A]

Either an action in F or a pure function used to extract the A from the InnerResource

Either an action in F or a pure function used to extract the A from the InnerResource

The effect in the Left branch will be performed interruptibly, it is not afforded the same kind of safety as acquire and release actions when F is an effect type that supports interruption/cancellation.

When F is Identity, it doesn't matter whether the output is a Left or Right branch.

When consuming the output of extract you can use _.fold(identity, F.pure) to convert the Either to F[B]

Attributes

See also

Lifecycle.Basic extract doesn't have to be defined when inheriting from Lifecycle.Basic

Note

the extract action is performed interruptibly by Lifecycle.SyntaxUse#use and other interpreters

Definition Classes
Inherited from:
FromPair
final def flatMap[G[x] : QuasiPrimitives, B](f: A => Lifecycle[G, B]): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final def flatten[G[x], B](implicit evidence$1: QuasiPrimitives[G], ev: A <:< Lifecycle[G, B]): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final def map[G[x] : QuasiFunctor, B](f: A => B): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final def mapK[G[x], H[_]](f: Morphism1[G, H]): Lifecycle[H, A]

Attributes

Inherited from:
Lifecycle
final def redeem[G[x] : QuasiIO, B](onFailure: Throwable => Lifecycle[G, B], onSuccess: A => Lifecycle[G, B]): Lifecycle[G, B]

Attributes

Inherited from:
Lifecycle
final override def release(resource: (A, F[Unit])): F[Unit]

The action in F used to release, close or deallocate the resource after it has been acquired and used through Lifecycle.SyntaxUse#use.

The action in F used to release, close or deallocate the resource after it has been acquired and used through Lifecycle.SyntaxUse#use.

Attributes

Note

the release action is performed uninterruptibly by Lifecycle.SyntaxUse#use and other interpreters, when F is an effect type that supports interruption/cancellation.

Definition Classes
Inherited from:
FromPair
final def void[G[x] : QuasiFunctor]: Lifecycle[G, Unit]

Attributes

Inherited from:
Lifecycle
final def widen[B](implicit ev: A <:< B): Lifecycle[F, B]

Attributes

Inherited from:
Lifecycle
final def widen[B >: A]: Lifecycle[F, B]

Attributes

Inherited from:
Lifecycle
final def widenF[G[_]](implicit ev: F[Unit] <:< G[Unit]): Lifecycle[G, A]

Attributes

Inherited from:
Lifecycle
final def widenF[G[x]]: Lifecycle[G, A]

Attributes

Inherited from:
Lifecycle
final def wrapAcquire[G[x]](f: (=> G[InnerResource]) => G[InnerResource]): Lifecycle[G, A]

Wrap acquire action of this resource in another effect, e.g. for logging purposes

Wrap acquire action of this resource in another effect, e.g. for logging purposes

Attributes

Inherited from:
Lifecycle
final def wrapRelease[G[x]](f: (InnerResource => G[Unit], InnerResource) => G[Unit]): Lifecycle[G, A]

Wrap release action of this resource in another effect, e.g. for logging purposes

Wrap release action of this resource in another effect, e.g. for logging purposes

Attributes

Inherited from:
Lifecycle
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