Interface ITridentWindowManager
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- All Known Implementing Classes:
AbstractTridentWindowManager,InMemoryTridentWindowManager,StoreBasedTridentWindowManager
public interface ITridentWindowManagerWindow manager to handle trident tuple events.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidaddTuplesBatch(Object batchId, List<TridentTuple> tuples)Add received batch of tuples to cache/store and add them toWindowManager.Queue<org.apache.storm.trident.windowing.AbstractTridentWindowManager.TriggerResult>getPendingTriggers()Returns pending triggers to be emitted.voidprepare()This is invoked fromorg.apache.storm.trident.planner.TridentProcessor's prepare method.voidshutdown()This is invoked when fromorg.apache.storm.trident.planner.TridentProcessor's cleanup method.
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Method Detail
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prepare
void prepare()
This is invoked fromorg.apache.storm.trident.planner.TridentProcessor's prepare method. So any initialization tasks can be done before the topology starts accepting tuples. For ex: initialize window manager with any earlier stored tuples/triggers and start WindowManager.
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shutdown
void shutdown()
This is invoked when fromorg.apache.storm.trident.planner.TridentProcessor's cleanup method. So, any cleanup operations like clearing cache or close store connection etc can be done.
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addTuplesBatch
void addTuplesBatch(Object batchId, List<TridentTuple> tuples)
Add received batch of tuples to cache/store and add them toWindowManager.
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getPendingTriggers
Queue<org.apache.storm.trident.windowing.AbstractTridentWindowManager.TriggerResult> getPendingTriggers()
Returns pending triggers to be emitted.
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