Package org.gridgain.internal.eviction.task

Class LowWatermarkUpdater

java.lang.Object
org.gridgain.internal.eviction.task.LowWatermarkUpdater
public class LowWatermarkUpdater extends Object
Low watermark updater.

  • Constructor Summary

    Constructors
    Constructor
    Description
    LowWatermarkUpdater(org.apache.ignite.internal.lowwatermark.LowWatermark lowWatermark, org.apache.ignite.internal.schema.configuration.LowWatermarkConfiguration lowWatermarkConfig, org.apache.ignite.internal.hlc.ClockService clockService)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    org.apache.ignite.internal.hlc.HybridTimestamp
    updateLowWatermark()
    Updates low watermark, every call increments the iteration.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • LowWatermarkUpdater

      public LowWatermarkUpdater(org.apache.ignite.internal.lowwatermark.LowWatermark lowWatermark, org.apache.ignite.internal.schema.configuration.LowWatermarkConfiguration lowWatermarkConfig, org.apache.ignite.internal.hlc.ClockService clockService)
      Constructor.
      Parameters:
      lowWatermark - Low watermark.
      lowWatermarkConfig - Low watermark configuration.
      clockService - Clock service.

  • Method Details

    • updateLowWatermark

      public org.apache.ignite.internal.hlc.HybridTimestamp updateLowWatermark()
      Updates low watermark, every call increments the iteration. The new low watermark is calculated as 0.9^iteration * dataAvailabilityTime.
      Returns:
      New LowWatermark candidate.