org.apache.flink.connector.kafka.sink

类 DefaultKafkaSinkContext

java.lang.Object

org.apache.flink.connector.kafka.sink.DefaultKafkaSinkContext

所有已实现的接口:

KafkaRecordSerializationSchema.KafkaSinkContext

public class DefaultKafkaSinkContext
extends Object
implements KafkaRecordSerializationSchema.KafkaSinkContext

Context providing information to assist constructing a ProducerRecord.

构造器概要

构造器

构造器和说明
DefaultKafkaSinkContext(int subtaskId, int numberOfParallelInstances, Properties kafkaProducerConfig)

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.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

DefaultKafkaSinkContext

public DefaultKafkaSinkContext(int subtaskId,
                               int numberOfParallelInstances,
                               Properties kafkaProducerConfig)

方法详细资料

getParallelInstanceId

public int getParallelInstanceId()

从接口复制的说明: KafkaRecordSerializationSchema.KafkaSinkContext

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 KafkaRecordSerializationSchema.KafkaSinkContext.getNumberOfParallelInstances()

指定者:

getParallelInstanceId 在接口中 KafkaRecordSerializationSchema.KafkaSinkContext

返回:

ID of subtask

getNumberOfParallelInstances

public int getNumberOfParallelInstances()

指定者:

getNumberOfParallelInstances 在接口中 KafkaRecordSerializationSchema.KafkaSinkContext

返回:

number of parallel KafkaSink tasks.

getPartitionsForTopic

public int[] getPartitionsForTopic(String topic)

从接口复制的说明: KafkaRecordSerializationSchema.KafkaSinkContext

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.

指定者:

getPartitionsForTopic 在接口中 KafkaRecordSerializationSchema.KafkaSinkContext

参数:

topic - kafka topic with partitions

返回:

the ids of the currently available partitions