org.apache.flink.streaming.util.serialization

Interface PulsarContextAware<T>

All Superinterfaces:

org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>

All Known Subinterfaces:

PulsarDeserializationSchema<T>, PulsarSerializationSchema<T>

All Known Implementing Classes:

PulsarDeserializationSchemaWrapper, PulsarDeserializer, PulsarPrimitiveSchema, PulsarSerializationSchemaWrapper

@PublicEvolving
public interface PulsarContextAware<T>
extends org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>

An interface for dynamicPulsarSerializationSchema that need information about the context where the Pulsar 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

Modifier and Type	Method and Description
org.apache.pulsar.client.api.Schema<T>	getSchema()
default Optional<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 Pulsar Sink runs.
default void	setParallelInstanceId(int parallelInstanceId) Sets the number of the parallel subtask that the Pulsar Sink is running on.

Methods inherited from interface org.apache.flink.api.java.typeutils.ResultTypeQueryable

getProducedType

Method Detail

getTargetTopic

default Optional<String> getTargetTopic(T element)

Returns the topic that the presented element should be sent to.

setParallelInstanceId

default void setParallelInstanceId(int parallelInstanceId)

Sets the number of the parallel subtask that the Pulsar Sink 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 Pulsar Sink runs.

getSchema

org.apache.pulsar.client.api.Schema<T> getSchema()