| Interface | Description | 
|---|---|
| RetryEventListener | 
 Generalization of  
ApplicationEventListener for RetryEvent. | 
| Class | Description | 
|---|---|
| CircuitClosedEvent | 
 An event fired when a Circuit is  
CircuitState.CLOSED and has resumed
 accepting requests. | 
| CircuitOpenEvent | 
 An event fired when the Circuit is  
CircuitState.OPEN and
 requests are no longer being accepted. | 
| RetryEvent | 
 An event triggered on each retry. 
 |