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

Interface TwoOutputStreamProcessFunction<IN,OUT1,OUT2>

All Superinterfaces:

Function, ProcessFunction, Serializable

@Experimental
public interface TwoOutputStreamProcessFunction<IN,OUT1,OUT2>
extends ProcessFunction

This contains all logical related to process and emit records to two output streams.

Method Summary

Modifier and Type	Method	Description
default void	endInput(TwoOutputNonPartitionedContext<OUT1,OUT2> ctx)	This is a life-cycle method indicates that this function will no longer receive any input data.
default void	onProcessingTimer(long timestamp, Collector<OUT1> output1, Collector<OUT2> output2, PartitionedContext ctx)	Callback for processing timer.
void	processRecord(IN record, Collector<OUT1> output1, Collector<OUT2> output2, PartitionedContext ctx)	Process and emit record to the first/second output through Collectors.

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

close, open, usesStates

Method Detail

processRecord

void processRecord(IN record,
                   Collector<OUT1> output1,
                   Collector<OUT2> output2,
                   PartitionedContext ctx)
            throws Exception

Process and emit record to the first/second output through Collectors.

Parameters:

record - to process.

output1 - to emit processed records to the first output.

output2 - to emit processed records to the second output.

ctx - runtime context in which this function is executed.

Throws:

Exception

endInput

default void endInput(TwoOutputNonPartitionedContext<OUT1,OUT2> ctx)

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

Parameters:

ctx - the context in which this function is executed.

onProcessingTimer

default void onProcessingTimer(long timestamp,
                               Collector<OUT1> output1,
                               Collector<OUT2> output2,
                               PartitionedContext ctx)

Callback for processing timer.

Parameters:

timestamp - when this callback is triggered.

output1 - to emit record.

output2 - to emit record.

ctx - runtime context in which this function is executed.