KafkaContextAware (Flink : Connectors : Kafka 3.0.2-1.18 API)

All Known Implementing Classes:

KafkaSerializationSchemaWrapper
```
@PublicEvolving
public interface KafkaContextAware<T>
```
An interface for KafkaSerializationSchemas that need information about the context where the Kafka Producer is running along with information about the available partitions.
You only need to override the methods for the information that you need. However, getTargetTopic(Object) is required because it is used to determine the available partitions.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`String`	`getTargetTopic(T element)`	Returns the topic that the presented element should be sent to.
`default void`	`setNumParallelInstances(int numParallelInstances)`	Sets the parallelism with which the parallel task of the Kafka Producer runs.
`default void`	`setParallelInstanceId(int parallelInstanceId)`	Sets the number of the parallel subtask that the Kafka Producer is running on.
`default void`	`setPartitions(int[] partitions)`	Sets the available partitions for the topic returned from `getTargetTopic(Object)`.

- Method Detail
  - setParallelInstanceId
```
default void setParallelInstanceId(int parallelInstanceId)
```
    Sets the number of the parallel subtask that the Kafka Producer is running on. The numbering starts from 0 and goes up to parallelism-1 (parallelism as returned by setNumParallelInstances(int)).
  - setNumParallelInstances
```
default void setNumParallelInstances(int numParallelInstances)
```
    Sets the parallelism with which the parallel task of the Kafka Producer runs.
  - setPartitions
```
default void setPartitions(int[] partitions)
```
    Sets the available partitions for the topic returned from getTargetTopic(Object).
  - getTargetTopic
```
String getTargetTopic(T element)
```
    Returns the topic that the presented element should be sent to. This is not used for setting the topic (this is done via the ProducerRecord that is returned from KafkaSerializationSchema.serialize(Object, Long), it is only used for getting the available partitions that are presented to setPartitions(int[]).