NetworkClientCallback (Hekate 4.0.0)

Type Parameters:

T - Base type of messages that can be sent/received by a NetworkClient.

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface NetworkClientCallback<T>
```
Callback for receiving messages and tracking state changes in NetworkClient.
Instances of this interface should be passed to the NetworkClient.connect(InetSocketAddress, NetworkClientCallback) method.

See Also:

NetworkClient

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`onConnect(NetworkClient<T> client)`	Called upon successful completion of `connect` operation right after client switches to the `CONNECTED` state.
`default void`	`onDisconnect(NetworkClient<T> client, Optional<Throwable> cause)`	Called right after `NetworkClient` gets disconnected and switched to the `DISCONNECTED` state either by explicit call of `NetworkEndpoint.disconnect()` method or if connection was closed due to an error.
`void`	`onMessage(NetworkMessage<T> message, NetworkClient<T> client)`	Called when a new message is received from the server.

- Method Detail
  - onMessage
```
void onMessage(NetworkMessage<T> message,
               NetworkClient<T> client)
        throws IOException
```
    Called when a new message is received from the server.
    
    Parameters:
    
    message - Message.
    
    client - Client that received this message.
    
    Throws:
    
    IOException - Message handling error.
  - onConnect
```
default void onConnect(NetworkClient<T> client)
```
    Called upon successful completion of connect operation right after client switches to the CONNECTED state.
    Note that this method will not be called in case of connect operation failure, onDisconnect(NetworkClient, Optional) method will be called instead with a non-empty cause.
    
    Parameters:
    
    client - Client that was connected.
  - onDisconnect
```
default void onDisconnect(NetworkClient<T> client,
                          Optional<Throwable> cause)
```
    Called right after NetworkClient gets disconnected and switched to the DISCONNECTED state either by explicit call of NetworkEndpoint.disconnect() method or if connection was closed due to an error.
    
    Parameters:
    
    client - Client that was disconnected.
    
    cause - Error that caused this disconnect.