com.alibaba.csp.sentinel.slots.block.degrade.circuitbreaker

Interface CircuitBreakerStateChangeObserver

public interface CircuitBreakerStateChangeObserver

Since:

1.8.0

Author:

Eric Zhao

Method Summary

Modifier and Type	Method and Description
void	onStateChange(CircuitBreaker.State prevState, CircuitBreaker.State newState, DegradeRule rule, Double snapshotValue) Observer method triggered when circuit breaker state changed.

Method Detail

onStateChange

void onStateChange(CircuitBreaker.State prevState,
                   CircuitBreaker.State newState,
                   DegradeRule rule,
                   Double snapshotValue)

Observer method triggered when circuit breaker state changed. The transformation could be:

• From CLOSED to OPEN (with the triggered metric)
• From OPEN to HALF_OPEN
• From OPEN to CLOSED
• From HALF_OPEN to OPEN (with the triggered metric)

Parameters:

prevState - previous state of the circuit breaker

newState - new state of the circuit breaker

rule - associated rule

snapshotValue - triggered value on circuit breaker opens (null if the new state is CLOSED or HALF_OPEN)