SimpleAuthenticator (HiveMQ Extension SDK 4.28.1 API)

All Superinterfaces:

Authenticator

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 SimpleAuthenticator
extends Authenticator
```
Interface for the simple authentication of MQTT clients.
Simple authentication only uses CONNECT and CONNACK but no AUTH packets. This means:
- it does not support challenge/response style authentication
- it does not support re-authentication
An SimpleAuthenticator can be provided by an AuthenticatorProvider.
If an implementation stores state, an object of the implementation can not be shared by different clients. If no state is stored, the implementation has to be thread safe if it is shared by different clients.
Since:

4.0.0, CE 2019.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onConnect(@NotNull SimpleAuthInput simpleAuthInput, @NotNull SimpleAuthOutput simpleAuthOutput)`	This method is called when the MQTT client (that has to be authenticated) sent the CONNECT packet.

- Method Detail
  - onConnect
```
void onConnect(@NotNull SimpleAuthInput simpleAuthInput,
               @NotNull SimpleAuthOutput simpleAuthOutput)
```
    This method is called when the MQTT client (that has to be authenticated) sent the CONNECT packet.
    
    Parameters:
    
    simpleAuthInput - The SimpleAuthInput.
    
    simpleAuthOutput - The SimpleAuthOutput.
    
    Since:
    
    4.0.0, CE 2019.1