org.apache.storm.windowing

Class DefaultEvictionContext

java.lang.Object

org.apache.storm.windowing.DefaultEvictionContext

All Implemented Interfaces:

EvictionContext

public class DefaultEvictionContext
extends Object
implements EvictionContext

Constructor Summary

Constructors

Constructor and Description
DefaultEvictionContext(Long referenceTime)
DefaultEvictionContext(Long referenceTime, Long currentCount)
DefaultEvictionContext(Long referenceTime, Long currentCount, Long slidingCount)
DefaultEvictionContext(Long referenceTime, Long currentCount, Long slidingCount, Long slidingInterval)

Method Summary

Modifier and Type	Method and 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

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultEvictionContext

public DefaultEvictionContext(Long referenceTime)

DefaultEvictionContext

public DefaultEvictionContext(Long referenceTime,
                              Long currentCount)

DefaultEvictionContext

public DefaultEvictionContext(Long referenceTime,
                              Long currentCount,
                              Long slidingCount)

DefaultEvictionContext

public DefaultEvictionContext(Long referenceTime,
                              Long currentCount,
                              Long slidingCount,
                              Long slidingInterval)

Method Detail

getReferenceTime

public Long getReferenceTime()

Description copied from interface: EvictionContext

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.

Specified by:

getReferenceTime in interface EvictionContext

Returns:

the reference time in millis

getCurrentCount

public Long getCurrentCount()

Description copied from interface: EvictionContext

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

Specified by:

getCurrentCount in interface EvictionContext

Returns:

the current count

getSlidingCount

public Long getSlidingCount()

Description copied from interface: EvictionContext

Returns the sliding count for count based windows

Specified by:

getSlidingCount in interface EvictionContext

Returns:

the sliding count

getSlidingInterval

public Long getSlidingInterval()

Description copied from interface: EvictionContext

Returns the sliding interval for time based windows

Specified by:

getSlidingInterval in interface EvictionContext

Returns:

the sliding interval