org.apache.flink.streaming.runtime.tasks

Interface ProcessingTimeCallback

All Known Implementing Classes:

StreamingFileSinkHelper, TimestampsAndWatermarksOperator

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@Internal
 @FunctionalInterface
public interface ProcessingTimeCallback

Interface for processing-time callbacks that can be registered at a ProcessingTimeService.

Method Summary

Modifier and Type	Method and Description
void	onProcessingTime(long timestamp) This method is invoked with the timestamp for which the trigger was scheduled.

Method Detail

onProcessingTime

void onProcessingTime(long timestamp)
               throws Exception

This method is invoked with the timestamp for which the trigger was scheduled.

If the triggering is delayed for whatever reason (trigger timer was blocked, JVM stalled due to a garbage collection), the timestamp supplied to this function will still be the original timestamp for which the trigger was scheduled.

Parameters:

timestamp - The timestamp for which the trigger event was scheduled.

Throws:

Exception