Package org.apache.flink.datastream.api.function

Interface TwoInputNonBroadcastStreamProcessFunction<IN1,IN2,OUT>

All Superinterfaces:

Function, ProcessFunction, Serializable

@Experimental
public interface TwoInputNonBroadcastStreamProcessFunction<IN1,IN2,OUT>
extends ProcessFunction

This contains all logical related to process records from two non-broadcast input.

Method Summary

Modifier and Type	Method	Description
default void	endFirstInput(NonPartitionedContext<OUT> ctx)	This is a life-cycle method indicates that this function will no longer receive any data from the first input.
default void	endSecondInput(NonPartitionedContext<OUT> ctx)	This is a life-cycle method indicates that this function will no longer receive any data from the second input.
default void	onProcessingTimer(long timestamp, Collector<OUT> output, PartitionedContext ctx)	Callback for processing timer.
void	processRecordFromFirstInput(IN1 record, Collector<OUT> output, PartitionedContext ctx)	Process record from the first input and emit data through Collector.
void	processRecordFromSecondInput(IN2 record, Collector<OUT> output, PartitionedContext ctx)	Process record from the second input and emit data through Collector.

Methods inherited from interface org.apache.flink.datastream.api.function.ProcessFunction

close, open, usesStates

Method Detail

processRecordFromFirstInput

void processRecordFromFirstInput(IN1 record,
                                 Collector<OUT> output,
                                 PartitionedContext ctx)
                          throws Exception

Process record from the first input and emit data through Collector.

Parameters:

record - to process.

output - to emit processed records.

ctx - runtime context in which this function is executed.

Throws:

Exception

processRecordFromSecondInput

void processRecordFromSecondInput(IN2 record,
                                  Collector<OUT> output,
                                  PartitionedContext ctx)
                           throws Exception

Process record from the second input and emit data through Collector.

Parameters:

record - to process.

output - to emit processed records.

ctx - runtime context in which this function is executed.

Throws:

Exception

endFirstInput

default void endFirstInput(NonPartitionedContext<OUT> ctx)

This is a life-cycle method indicates that this function will no longer receive any data from the first input.

Parameters:

ctx - the context in which this function is executed.

endSecondInput

default void endSecondInput(NonPartitionedContext<OUT> ctx)

This is a life-cycle method indicates that this function will no longer receive any data from the second input.

Parameters:

ctx - the context in which this function is executed.

onProcessingTimer

default void onProcessingTimer(long timestamp,
                               Collector<OUT> output,
                               PartitionedContext ctx)

Callback for processing timer.

Parameters:

timestamp - when this callback is triggered.

output - to emit record.

ctx - runtime context in which this function is executed.