RedundantConnectionEventListener

```
public interface RedundantConnectionEventListener
```
An event listener that is notified on connection state changes by RedundantConnectionManager.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onConnectionEstablished(ConnectionParameters parameters)`	Method is called when new instance of `D2Connector` has been obtained.
`void`	`onConnectionLost(ConnectionParameters parameters, CloseReason reason)`	Method is called when instance of `D2Connector` has been disconnected.
`void`	`onHotConnectorLost(D2Connector previousHotConnector)`	Called when previously HOT kernel changes state.
`void`	`onNewHotConnectorRecognized(D2Connector newHotConnector)`	Called when another kernel becomes HOT and reconnection is required.

- Method Detail
  - onConnectionEstablished
```
void onConnectionEstablished(ConnectionParameters parameters)
```
    Method is called when new instance of D2Connector has been obtained.
    
    Parameters:
    
    parameters - remote address and port of connector
  - onConnectionLost
```
void onConnectionLost(ConnectionParameters parameters,
                      CloseReason reason)
```
    Method is called when instance of D2Connector has been disconnected.
    
    Parameters:
    
    parameters - remote address and port of connector
    
    reason - specifies the close reason
  - onNewHotConnectorRecognized
```
void onNewHotConnectorRecognized(D2Connector newHotConnector)
```
    Called when another kernel becomes HOT and reconnection is required.
    
    Parameters:
    
    newHotConnector - connection to HOT kernel.
  - onHotConnectorLost
```
void onHotConnectorLost(D2Connector previousHotConnector)
```
    Called when previously HOT kernel changes state. Another kernel should become HOT shortly.
    
    Parameters:
    
    previousHotConnector - connection to previously HOT kernel.