SubscriptionEventListener (Pusher Java Websocket API)

All Known Subinterfaces:

ChannelEventListener, PresenceChannelEventListener, PrivateChannelEventListener, PrivateEncryptedChannelEventListener
```
public interface SubscriptionEventListener
```
Client applications should implement this interface if they want to be notified when events are received on a public or private channel.
To bind your implementation of this interface to a channel, either:
- Call Pusher.subscribe(String) to subscribe and receive an instance of Channel.
- Call Channel.bind(String, SubscriptionEventListener) to bind your listener to a specified event.
Or, call Pusher.subscribe(String, ChannelEventListener, String...) to subscribe to a channel and bind your listener to one or more events at the same time.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`onError(java.lang.String message, java.lang.Exception e)`	Callback that is fired whenever an unexpected error occurs processing for this SubscriptionEventListener.
`void`	`onEvent(PusherEvent event)`	Callback that is fired whenever an event that this SubscriptionEventListener has been bound to is received.

- Method Detail
  - onEvent
```
void onEvent(PusherEvent event)
```
    Callback that is fired whenever an event that this SubscriptionEventListener has been bound to is received.
    
    Parameters:
    
    event - A PusherEvent object which exposes the whole event. See PusherEvent for more.
  - onError
```
default void onError(java.lang.String message,
                     java.lang.Exception e)
```
    Callback that is fired whenever an unexpected error occurs processing for this SubscriptionEventListener.
    
    Parameters:
    
    message - A description of the problem.
    
    e - An associated exception, if available.