org.apache.flink.streaming.api.operators.source

Interface TimestampsAndWatermarks.WatermarkUpdateListener

Enclosing interface:

TimestampsAndWatermarks<T>

@Internal
public static interface TimestampsAndWatermarks.WatermarkUpdateListener

Lets the owner/creator of the output know about latest emitted watermark.

Method Summary

Modifier and Type	Method and Description
void	updateCurrentEffectiveWatermark(long watermark) Effective watermark covers the WatermarkStatus.

Method Detail

updateCurrentEffectiveWatermark

void updateCurrentEffectiveWatermark(long watermark)

Effective watermark covers the WatermarkStatus. If an output becomes idle, this method should be called with Long.MAX_VALUE, but what is more important, once it becomes active again it should call this method with the last emitted value of the watermark.