com.smartgwt.client.rpc

## Interface MessagingConnectionDownCallback

-     public interface MessagingConnectionDownCallback

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `execute()` Called when the messaging connection allowing the server to send messages to the client is disconnected.

- - ### Method Detail

    - #### execute

          void execute()

      Called when the messaging connection allowing the server to send messages to the client is disconnected. This can occur either when you explicitly disconnect the connection or if a keepalive packet from the server does not arrive on time. This latter is defined as the `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.