EventListener (Box Java SDK)

```
public interface EventListener
```
The listener interface for receiving events from an EventStream.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`onEvent(BoxEvent event)` Invoked when an event is received from the API.
`boolean`	`onException(Throwable e)` Invoked when an error occurs while waiting for events to be received.

- Method Detail
  - onEvent
```
void onEvent(BoxEvent event)
```
    Invoked when an event is received from the API.
    
    Parameters:
    event - the received event.
  - onException
```
boolean onException(Throwable e)
```
    Invoked when an error occurs while waiting for events to be received.
    When an EventStream encounters an exception, it will invoke this method on each of its listeners until one of them returns true, indicating that the exception was handled.
    
    Parameters:
    e - the exception that was thrown while waiting for events.
    
    Returns:
    true if the exception was handled; otherwise false.