Trait Event 

pub trait Event:
    Serialize
    + DeserializeOwned
    + Send
    + Sync
    + 'static {
    // Required methods
    fn subject(&self) -> Cow<'_, str>;
    fn message_id(&self) -> MessageId;

    // Provided method
    fn aggregate_type() -> &'static str
       where Self: Sized { ... }
}

Marker trait for all events published through the event bus.

Implement manually or use #[derive(Event)] from the bus-macros crate. Every implementor must have a stable, unique message_id() for idempotency and deduplication.

Required Methods

fn subject(&self) -> Cow<'_, str>

NATS subject for this event.

fn message_id(&self) -> MessageId

Unique identifier used as the message ID header and idempotency key.

Provided Methods

fn aggregate_type() -> &'static str

where Self: Sized,

Aggregate type used for outbox routing.

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