Trait CircuitBreakerObserver

pub trait CircuitBreakerObserver: Send + Sync {
    // Required methods
    fn on_state_change(&self, name: &str, event: &CircuitTransitionEvent);
    fn on_operation_attempt(&self, name: &str, state: CircuitBreakerState);
    fn on_operation_result(
        &self,
        name: &str,
        op_type: CircuitOperationType,
        duration: Duration,
        error: Option<&DecrustError>,
    );
    fn on_reset(&self, name: &str);
}

Observer trait for circuit breaker events.

Implement this trait to react to state changes, operation results, and other significant events from the circuit breaker.

Required Methods

fn on_state_change(&self, name: &str, event: &CircuitTransitionEvent)

Called when the circuit breaker’s state changes.

fn on_operation_attempt(&self, name: &str, state: CircuitBreakerState)

Called before an operation is attempted (if not rejected immediately).

fn on_operation_result( &self, name: &str, op_type: CircuitOperationType, duration: Duration, error: Option<&DecrustError>, )

Called after an operation completes or is rejected/timed out.

fn on_reset(&self, name: &str)

Called when the circuit breaker is manually reset.

Implementors