Trait Aggregate

pub trait Aggregate: Default {
    // Required method
    fn aggregate_type() -> &'static str;

    // Provided methods
    fn apply<E>(&mut self, event: E)
       where E: AggregateEvent<Self> { ... }
    fn execute<C>(
        &self,
        command: C,
    ) -> Result<<C as AggregateCommand<Self>>::Events, <C as AggregateCommand<Self>>::Error>
       where C: AggregateCommand<Self> { ... }
}

A projected state built from a series of events.

Required Methods

fn aggregate_type() -> &'static str

A static string representing the type of the aggregate.

Note: This should effectively be a constant value, and should never change.

Provided Methods

fn apply<E>(&mut self, event: E)

where E: AggregateEvent<Self>,

Consumes the event, applying its effects to the aggregate.

fn execute<C>( &self, command: C, ) -> Result<<C as AggregateCommand<Self>>::Events, <C as AggregateCommand<Self>>::Error>

where C: AggregateCommand<Self>,

Consumes a command, attempting to execute it against the aggregate. If the execution is successful, a sequence of events is generated, which can be applied to the aggregate.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors