Package org.apache.storm.windowing

Interface EvictionContext

All Known Implementing Classes:
DefaultEvictionContext
public interface EvictionContext
Context information that can be used by the eviction policy.

  • Method Summary

    Modifier and Type
    Method
    Description
    Long
    getCurrentCount()
    Returns the current count of events in the queue up to the reference time based on which count based evictions can be performed.
    Long
    getReferenceTime()
    Returns the reference time that the eviction policy could use to evict the events.
    Long
    getSlidingCount()
    Returns the sliding count for count based windows.
    Long
    getSlidingInterval()
    Returns the sliding interval for time based windows.

  • Method Details

    • getReferenceTime

      Long getReferenceTime()
      Returns the reference time that the eviction policy could use to evict the events. In the case of event time processing, this would be the watermark time.
      Returns:
      the reference time in millis

    • getSlidingCount

      Long getSlidingCount()
      Returns the sliding count for count based windows.
      Returns:
      the sliding count

    • getSlidingInterval

      Long getSlidingInterval()
      Returns the sliding interval for time based windows.
      Returns:
      the sliding interval

    • getCurrentCount

      Long getCurrentCount()
      Returns the current count of events in the queue up to the reference time based on which count based evictions can be performed.
      Returns:
      the current count