Trait CompensableEffect 

pub trait CompensableEffect: EffectHandler {
    // Required method
    fn compensate(
        &self,
        ctx: &CompensationContext,
        input: &Self::Input,
        output: Option<&Self::Output>,
    ) -> impl Future<Output = Result<(), Self::Error>> + Send;
}

A handler whose effect can be undone.

Register it with Handler::compensable; undo an effect with Runtime::compensate. The compensation must be idempotent: a crashed or ambiguous attempt is run again. Send CompensationContext::idempotency_key to the remote system.

Required Methods

fn compensate( &self, ctx: &CompensationContext, input: &Self::Input, output: Option<&Self::Output>, ) -> impl Future<Output = Result<(), Self::Error>> + Send

Undoes the effect. output is what execute returned, if it was stored.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors