org.apache.flink.connector.kafka.sink

接口 KafkaRecordSerializationSchema.KafkaSinkContext

所有已知实现类:

DefaultKafkaSinkContext

封闭接口:

KafkaRecordSerializationSchema<T>

@Internal
public static interface KafkaRecordSerializationSchema.KafkaSinkContext

Context providing information of the kafka record target location.

方法概要

限定符和类型	方法和说明
int	getNumberOfParallelInstances()
int	getParallelInstanceId() Get the ID of the subtask the KafkaSink is running on.
int[]	getPartitionsForTopic(String topic) For a given topic id retrieve the available partitions.

方法详细资料

getParallelInstanceId

int getParallelInstanceId()

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

返回:

ID of subtask

getNumberOfParallelInstances

int getNumberOfParallelInstances()

返回:

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.

参数:

topic - kafka topic with partitions

返回:

the ids of the currently available partitions