ProtocolEvent (Netty API Reference (5.0.0.Alpha4))

All Known Implementing Classes:

SniCompletionEvent, SslCloseCompletionEvent, SslCompletionEvent, SslHandshakeCompletionEvent, WebSocketClientHandshakeCompletionEvent, WebSocketHandshakeCompletionEvent, WebSocketServerHandshakeCompletionEvent
```
public interface ProtocolEvent
```
An application-level event propagated via an ChannelPipeline, such as a TLS or WebSocket handshake event.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`Throwable`	`cause()`	Returns the cause of the failure, or `null` if `isSuccess()`.
`default boolean`	`isFailed()`	Returns `true` if the event was sent because of some unsuccessful protocol event.
`default boolean`	`isSuccess()`	Returns `true` if the event was sent because of some successful protocol event.

- Method Detail
  - isSuccess
```
default boolean isSuccess()
```
    Returns true if the event was sent because of some successful protocol event.
    
    Returns:
    
    true when success, false otherwise.
  - isFailed
```
default boolean isFailed()
```
    Returns true if the event was sent because of some unsuccessful protocol event.
    
    Returns:
    
    true when unsuccessful, false otherwise.
  - cause
```
Throwable cause()
```
    Returns the cause of the failure, or null if isSuccess().
    
    Returns:
    
    the Throwable if isFailed() or null if isSuccess().