edu.iu.dsc.tws.task.window.collectives

Class ReduceWindow<T>

java.lang.Object

edu.iu.dsc.tws.api.compute.nodes.BaseNode

edu.iu.dsc.tws.task.window.api.BaseWindowSink<T>

edu.iu.dsc.tws.task.window.core.AbstractSingleWindowDataSink<T>

edu.iu.dsc.tws.task.window.core.BaseWindowedSink<T>

edu.iu.dsc.tws.task.window.collectives.ReduceWindow<T>

All Implemented Interfaces:

Closable, ICompute<T>, INode, IWindowedSink<T>, IWindowCompute<T>, java.io.Serializable

Direct Known Subclasses:

STWindowEventTimeExample.DirectReduceWindowedTask, STWindowExample.DirectReduceWindowedTask

public abstract class ReduceWindow<T>
extends BaseWindowedSink<T>

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.iu.dsc.tws.task.window.core.BaseWindowedSink

allowedLateness, collectiveEvents, collectiveOutput, DEFAULT_MAX_LAG, DEFAULT_WATERMARK_INTERVAL, evictionPolicy, iTimestampExtractor, iWindow, maxLagMs, watermarkEventGenerator, watermarkInterval, windowingPolicy, windowLifeCycleListener, windowManager, windowParameter

Fields inherited from class edu.iu.dsc.tws.api.compute.nodes.BaseNode

config, context

Constructor Summary

Constructors

Constructor and Description
ReduceWindow(ReduceWindowedFunction<T> reduceWindowedFunction)

Method Summary

Modifier and Type	Method and Description
boolean	execute(IWindowMessage<T> windowMessage)
boolean	getExpire(IWindowMessage<T> expiredMessages)
boolean	getLateMessages(IMessage<T> lateMessages)
abstract boolean	reduce(T content)
abstract boolean	reduceLateMessage(T content)

Methods inherited from class edu.iu.dsc.tws.task.window.core.BaseWindowedSink

close, execute, getEvictionPolicy, getWindowingPolicy, initialize, isTimestamped, newWindowLifeCycleListener, prepare, reset, setPolicies, start, withAllowedLateness, withCustomTimestampExtractor, withSlidingCountWindow, withSlidingDurationWindow, withTimestampExtractor, withTumblingCountWindow, withTumblingDurationWindow, withWatermarkInterval, withWindow

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.iu.dsc.tws.api.compute.nodes.ICompute

endExecute

Constructor Detail

ReduceWindow

public ReduceWindow(ReduceWindowedFunction<T> reduceWindowedFunction)

Method Detail

reduce

public abstract boolean reduce(T content)

reduceLateMessage

public abstract boolean reduceLateMessage(T content)

execute

public boolean execute(IWindowMessage<T> windowMessage)

Specified by:

execute in class BaseWindowedSink<T>

getLateMessages

public boolean getLateMessages(IMessage<T> lateMessages)

Specified by:

getLateMessages in class BaseWindowedSink<T>

getExpire

public boolean getExpire(IWindowMessage<T> expiredMessages)

Specified by:

getExpire in class BaseWindowedSink<T>