Struct CallbackManager 

pub struct CallbackManager { /* private fields */ }

Pool of CallbackHandlers. Use to bundle multiple handlers and expose them as a single Observer entry on RunnableConfig.

Implementations

impl CallbackManager

pub fn new() -> Self

Empty manager.

pub fn push(self, h: Arc<dyn CallbackHandler>) -> Self

Append a handler.

pub fn len(&self) -> usize

Number of registered handlers.

pub fn is_empty(&self) -> bool

True when no handlers are registered.

pub fn handlers(&self) -> &[Arc<dyn CallbackHandler>]

Borrow the registered handlers (read-only).

Trait Implementations

impl Default for CallbackManager

fn default() -> CallbackManager

Returns the “default value” for a type.

impl Observer for CallbackManager

fn on_event(&self, event: &Event)

Called for every event emitted during execution. Implementations should be cheap and non-blocking — a slow observer slows execution.