Transformation (kafka 2.8.1 API)

All Superinterfaces:

AutoCloseable, Closeable, Configurable
```
public interface Transformation<R extends ConnectRecord<R>>
extends Configurable, Closeable
```
Single message transformation for Kafka Connect record types. Connectors can be configured with transformations to make lightweight message-at-a-time modifications.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`R`	`apply(R record)`	Apply transformation to the `record` and return another record object (which may be `record` itself) or `null`, corresponding to a map or filter operation respectively.
`void`	`close()`	Signal that this transformation instance will no longer will be used.
`ConfigDef`	`config()`	Configuration specification for this transformation.

Methods inherited from interface org.apache.kafka.common.Configurable
configure

- Method Detail
  - apply
```
R apply(R record)
```
    Apply transformation to the record and return another record object (which may be record itself) or null, corresponding to a map or filter operation respectively. A transformation must not mutate objects reachable from the given record (including, but not limited to, Headers, Structs, Lists, and Maps). If such objects need to be changed, a new ConnectRecord should be created and returned. The implementation must be thread-safe.
  - config
```
ConfigDef config()
```
    Configuration specification for this transformation.
  - close
```
void close()
```
    Signal that this transformation instance will no longer will be used.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable