public interface MessagingConnectionDownCallback
| Modifier and Type | Method and Description | 
|---|---|
| void | execute()Called when the messaging connection allowing the server to send messages to the client is disconnected. | 
void execute()
Messaging.keepaliveInterval plus the Messaging.keepaliveReestablishDelay. With default settings, a maximum of 4 seconds will elapse between the connection
 actually going down and you receiving this callback.