Struct MessageEnvelope 

pub struct MessageEnvelope { /* private fields */ }

Metadata carried alongside every dispatch.

The envelope exposes the message type name and identifiers without requiring the middleware to know the concrete Command or Query type.

Implementations

impl MessageEnvelope

pub fn for_command<C: Command>( message_id: MessageId, correlation_id: CorrelationId, ) -> Self

Builds an envelope for a Command dispatch.

pub fn for_query<Q: Query>( message_id: MessageId, correlation_id: CorrelationId, ) -> Self

Builds an envelope for a Query dispatch.

pub fn type_name(&self) -> &'static str

The fully-qualified type name of the dispatched message.

pub fn message_id(&self) -> MessageId

The unique identifier of this dispatch.

pub fn correlation_id(&self) -> CorrelationId

The correlation identifier linking this dispatch to its causal chain.

Trait Implementations

impl Clone for MessageEnvelope

fn clone(&self) -> MessageEnvelope

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MessageEnvelope

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.