Class SlidingCountWindowStrategy<T>
- java.lang.Object
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- org.apache.storm.trident.windowing.strategy.BaseWindowStrategy<T>
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- org.apache.storm.trident.windowing.strategy.SlidingCountWindowStrategy<T>
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- All Implemented Interfaces:
WindowStrategy<T>
public class SlidingCountWindowStrategy<T> extends BaseWindowStrategy<T>
This class represents sliding window strategy based on the sliding window count and sliding interval count from the givenslidingCountWindowconfiguration.
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Field Summary
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Fields inherited from class org.apache.storm.trident.windowing.strategy.BaseWindowStrategy
windowConfig
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Constructor Summary
Constructors Constructor Description SlidingCountWindowStrategy(WindowConfig slidingCountWindow)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description EvictionPolicy<T,?>getEvictionPolicy()Returns anEvictionPolicyinstance which evicts elements after a count of given window length.TriggerPolicy<T,?>getTriggerPolicy(TriggerHandler triggerHandler, EvictionPolicy<T,?> evictionPolicy)Returns aTriggerPolicywhich triggers for every count of given sliding window.
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Constructor Detail
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SlidingCountWindowStrategy
public SlidingCountWindowStrategy(WindowConfig slidingCountWindow)
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Method Detail
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getTriggerPolicy
public TriggerPolicy<T,?> getTriggerPolicy(TriggerHandler triggerHandler, EvictionPolicy<T,?> evictionPolicy)
Returns aTriggerPolicywhich triggers for every count of given sliding window.
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getEvictionPolicy
public EvictionPolicy<T,?> getEvictionPolicy()
Returns anEvictionPolicyinstance which evicts elements after a count of given window length.
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