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

Interface OneInputEventTimeStreamProcessFunction<IN,OUT>

All Superinterfaces:

EventTimeProcessFunction, org.apache.flink.api.common.functions.Function, OneInputStreamProcessFunction<IN,OUT>, ProcessFunction, Serializable

@Experimental
public interface OneInputEventTimeStreamProcessFunction<IN,OUT>
extends EventTimeProcessFunction, OneInputStreamProcessFunction<IN,OUT>

The OneInputStreamProcessFunction that extends with event time support.

Method Summary

Modifier and Type	Method	Description
default void	onEventTimer(long timestamp, Collector<OUT> output, PartitionedContext<OUT> ctx)	Invoked when an event-time timer fires.
default void	onEventTimeWatermark(long watermarkTimestamp, Collector<OUT> output, NonPartitionedContext<OUT> ctx)	The #onEventTimeWatermark method signifies that the EventTimeProcessFunction has received an EventTimeWatermark.

Methods inherited from interface org.apache.flink.datastream.api.extension.eventtime.function.EventTimeProcessFunction

initEventTimeProcessFunction

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

endInput, onProcessingTimer, onWatermark, open, processRecord

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

close, declareWatermarks, usesStates

Method Detail

onEventTimeWatermark

default void onEventTimeWatermark(long watermarkTimestamp,
                                  Collector<OUT> output,
                                  NonPartitionedContext<OUT> ctx)
                           throws Exception

The #onEventTimeWatermark method signifies that the EventTimeProcessFunction has received an EventTimeWatermark. Other types of watermarks will be processed by the ProcessFunction#onWatermark method.

Throws:

Exception

onEventTimer

default void onEventTimer(long timestamp,
                          Collector<OUT> output,
                          PartitionedContext<OUT> ctx)
                   throws Exception

Invoked when an event-time timer fires. Note that it is only used in KeyedPartitionStream.

Throws:

Exception