kernel/me.ahoo.wow.kernel/RejectionBinding

RejectionBinding

One @OnRejected handler of a saga, bound to its processor instance: what the compiler generates for each @OnRejected function of a @Saga. It belongs to the saga's ProcessorBindings (ProcessorBinding.rejections), since it takes the rejections of the commands the saga's own handlers derive, not entries of the log; like them, it knows no runtime.

commandType is the C of the CommandReceipt.Rejected<C> it takes: it handles the rejections of the commands of that class (or a subclass); null for CommandReceipt.Rejected<*>, every command the saga derives (handles).
blocking (@Blocking) asks the runtime to run the call on virtual threads instead of inline.
sends are the commands it declares it derives, schedules and calls (@Sends, its return type for what it derives): its context holds it to them.
invoke calls the handler directly and returns the commands that compensate, of the requests it returns (requestsOf), as a saga's handler derives its commands.

Built with of.

Types

Companion

object Companion

Properties

blocking

val blocking: Boolean

commandType

val commandType: Class<C>?

function

val function: String

The handler function's name.

name

val name: String

The handler's name, processor.function, as the Manifest lists it.

processor

val processor: String

The saga's name: its @Name, or its class's simple name.

sends

@InternalWowApi

val sends: SagaSends

What the handler declares it sends (@Sends, else its return type for what it derives).

Functions

handles

fun handles(command: Class<*>): Boolean

Whether it takes the rejections of the commands of command: those its commandType names, or every one.

invoke

suspend fun invoke(rejected: CommandReceipt.Rejected<*>, context: SagaContext): List<Command<*>>

Calls the handler with rejected, of a command it handles, and the context the rejection is handled in (rejectionContextOf), in the caller's coroutine: running a blocking one elsewhere is the runtime's.

toString

open override fun toString(): String