KeyNameExtractor (kafka-encryption-keyrepository 0.2.0 API)

```
public interface KeyNameExtractor
```
Used at encryption time to infer key name from topic name and message key

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`String`	`extractKeyName(String topic, Object key)`

String extractKeyName(String topic,
                      Object key)

Interface KeyNameExtractor