org.apache.storm.trident.windowing.strategy

Class SlidingDurationWindowStrategy<T>

java.lang.Object

org.apache.storm.trident.windowing.strategy.BaseWindowStrategy<T>

org.apache.storm.trident.windowing.strategy.SlidingDurationWindowStrategy<T>

All Implemented Interfaces:

WindowStrategy<T>

public final class SlidingDurationWindowStrategy<T>
extends BaseWindowStrategy<T>

This class represents sliding window strategy based on the sliding window duration and sliding interval from the given slidingCountWindow configuration.

Field Summary

Fields inherited from class org.apache.storm.trident.windowing.strategy.BaseWindowStrategy

windowConfig

Constructor Summary

Constructors

Constructor and Description
SlidingDurationWindowStrategy(WindowConfig slidingDurationWindow)

Method Summary

Modifier and Type	Method and Description
EvictionPolicy<T,?>	getEvictionPolicy() Returns an EvictionPolicy instance which evicts elements after window duration is reached.
TriggerPolicy<T,?>	getTriggerPolicy(TriggerHandler triggerHandler, EvictionPolicy<T,?> evictionPolicy) Returns a TriggerPolicy which triggers for every configured sliding window duration.

Methods inherited from class java.lang.Object

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

Constructor Detail

SlidingDurationWindowStrategy

public SlidingDurationWindowStrategy(WindowConfig slidingDurationWindow)

Method Detail

getTriggerPolicy

public TriggerPolicy<T,?> getTriggerPolicy(TriggerHandler triggerHandler,
                                           EvictionPolicy<T,?> evictionPolicy)

Returns a TriggerPolicy which triggers for every configured sliding window duration.

getEvictionPolicy

public EvictionPolicy<T,?> getEvictionPolicy()

Returns an EvictionPolicy instance which evicts elements after window duration is reached.