Struct CommandBus 

pub struct CommandBus { /* private fields */ }

In-memory command bus that routes envelopes to registered handlers.

Implementations

impl CommandBus

pub fn new() -> Self

Creates an empty command bus.

pub fn register_handler<H: CommandHandler + 'static>( &mut self, handler: H, ) -> RuntimeResult<()>

Registers one handler, rejecting duplicate command names.

pub fn contains_handler(&self, name: &CommandName) -> bool

Reports whether a handler exists for name.

pub fn len(&self) -> usize

Returns the number of registered handlers.

pub fn is_empty(&self) -> bool

Reports whether no handlers are registered.

pub fn dispatch( &self, command: &CommandEnvelope, context: &dyn RuntimeContext, ) -> RuntimeResult<CommandResult>

Dispatches an envelope to the handler matching its command name.

Trait Implementations

impl Debug for CommandBus

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

Formats the value using the given formatter.

impl Default for CommandBus

fn default() -> CommandBus

Returns the “default value” for a type.