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