final class EntityT[F[_], S, E, A] extends AnyVal
EntityT[F, S, E, A] is data type implementing the Entity[F, S, E] state reader and event
writer abilities. It is a monad transformer used as an interpreter for functional chains
involving calls to Entity read and write, turning them into a result value of F[Folded[E,
A]]. Folded[E, A] is either an error or a list of events bundled together with a result
value.
EntityT interpretation runs with an instance of EventsFolder[S, E] which is a tuple of
current state of type S together with event application function EventApplier[S, E].
Interpretation essentially accumulates the written events into a Chain[E] and applies these
events to initial state whenever a read is required.
- F
context
- S
state
- E
event
- A
value
Linear Supertypes
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Instance Constructors
- new EntityT(runAcc: (EventsFolder[S, E], Chain[E]) => F[Folded[E, A]])
- runAcc
Event folding function
Value Members
- final def !=(arg0: Any): Boolean
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- final def ##: Int
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- final def ==(arg0: Any): Boolean
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- final def asInstanceOf[T0]: T0
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- def flatMap[B](f: (A) => EntityT[F, S, E, B])(implicit monad: Monad[F]): EntityT[F, S, E, B]
- def getClass(): Class[_ <: AnyVal]
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- final def isInstanceOf[T0]: Boolean
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- def map[B](f: (A) => B)(implicit monad: Monad[F]): EntityT[F, S, E, B]
- def run(state: Option[S])(implicit applier: EventApplier[S, E]): F[Folded[E, A]]
- val runAcc: (EventsFolder[S, E], Chain[E]) => F[Folded[E, A]]
- def toString(): String
- Definition Classes
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