Mqtt5ClientOptions.PublishEvents (AWS Common Runtime for Java/JVM)

Enclosing class:

Mqtt5ClientOptions
```
public static interface Mqtt5ClientOptions.PublishEvents
```
An interface that defines all of the publish functions the Mqtt5Client will call when it receives a publish packet.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onMessageReceived(Mqtt5Client client, PublishReturn publishReturn)`	Called when an MQTT PUBLISH packet is received by the client.

- Method Detail
  - onMessageReceived
```
void onMessageReceived(Mqtt5Client client,
                       PublishReturn publishReturn)
```
    Called when an MQTT PUBLISH packet is received by the client.
    To take manual control of the publish acknowledgement for a QoS 1 message, call PublishReturn.acquirePublishAcknowledgementControl() within this callback. If you do so, the client will NOT automatically send the publish acknowledgement. You are responsible for calling Mqtt5Client.invokePublishAcknowledgement(Mqtt5PublishAcknowledgementControlHandle) later.
    
    If you do not call acquirePublishAcknowledgementControl() within the callback , the client will automatically send the publish acknowledgement after this callback returns.
    
    Parameters:
    
    client - The client that has received the message
    
    publishReturn - All of the data that was received from the server