org.apache.flink.connector.kafka.sink

Interface KafkaRecordSerializationSchema.KafkaSinkContext

Enclosing interface:

KafkaRecordSerializationSchema<T>

@Internal
public static interface KafkaRecordSerializationSchema.KafkaSinkContext

Context providing information of the kafka record target location.

Method Summary

Modifier and Type	Method and Description
int	getNumberOfParallelInstances()
int	getParallelInstanceId() Get the number of the subtask the KafkaSink is running on.
int[]	getPartitionsForTopic(String topic) For a given topic id retrieve the available partitions.

Method Detail

getParallelInstanceId

int getParallelInstanceId()

Get the number of the subtask the KafkaSink is running on. The numbering starts from 0 and goes up to parallelism-1. (parallelism as returned by getNumberOfParallelInstances()

Returns:

number of subtask

getNumberOfParallelInstances

int getNumberOfParallelInstances()

Returns:

number of parallel KafkaSink tasks.

getPartitionsForTopic

int[] getPartitionsForTopic(String topic)

For a given topic id retrieve the available partitions.

After the first retrieval the returned partitions are cached. If the partitions are updated the job has to be restarted to make the change visible.

Parameters:

topic - kafka topic with partitions

Returns:

the ids of the currently available partitions