Callback (datahub-client 0.12.0-5rc2 API)

```
public interface Callback
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onCompletion(MetadataWriteResponse response)`	Called when the client request has completed.
`void`	`onFailure(java.lang.Throwable exception)`	Called when the client request has thrown an exception before completion.

- Method Detail
  - onCompletion
```
void onCompletion(@Nullable
                  MetadataWriteResponse response)
```
    Called when the client request has completed. Completion does not imply success. Inspect the response object to understand if this was a successfully processed request or not.
    
    Parameters:
    
    response -
  - onFailure
```
void onFailure(java.lang.Throwable exception)
```
    Called when the client request has thrown an exception before completion.
    
    Parameters:
    
    exception -