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

Interface TimestampsAndWatermarks.WatermarkUpdateListener

All Known Implementing Classes:
SourceOperator
Enclosing interface:
TimestampsAndWatermarks<T>
@Internal public static interface TimestampsAndWatermarks.WatermarkUpdateListener
Lets the owner/creator of the output know about latest emitted watermark.

  • Method Details

    • updateIdle

      void updateIdle(boolean isIdle)
      It should be called once the idle is changed.

    • updateCurrentEffectiveWatermark

      void updateCurrentEffectiveWatermark(long watermark)
      Update the effective watermark. If an output becomes idle, please call {@link this#updateIdle} instead of update the watermark to Long.MAX_VALUE. Because the output needs to distinguish between idle and real watermark.

    • updateCurrentSplitWatermark

      void updateCurrentSplitWatermark(String splitId, long watermark)
      Notifies about changes to per split watermarks.

    • splitFinished

      void splitFinished(String splitId)
      Notifies that split has finished.