Package org.apache.iotdb.db.mpp.aggregation.slidingwindow

Class SlidingWindowAggregator

java.lang.Object

org.apache.iotdb.db.mpp.aggregation.Aggregator

org.apache.iotdb.db.mpp.aggregation.slidingwindow.SlidingWindowAggregator

Direct Known Subclasses:

EmptyQueueSlidingWindowAggregator, MonotonicQueueSlidingWindowAggregator, NormalQueueSlidingWindowAggregator, SmoothQueueSlidingWindowAggregator

public abstract class SlidingWindowAggregator
extends Aggregator

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	SlidingWindowAggregator.PartialAggregationResult

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.Deque<SlidingWindowAggregator.PartialAggregationResult>	deque

Fields inherited from class org.apache.iotdb.db.mpp.aggregation.Aggregator

accumulator, curTimeRange, inputLocationList, step

Constructor Summary

Constructors

Constructor	Description
SlidingWindowAggregator(Accumulator accumulator, java.util.List<InputLocation[]> inputLocationList, AggregationStep step)

Method Summary

Modifier and Type	Method	Description
protected abstract void	evictingExpiredValue()	evicting expired element in queue and reset expired aggregateResult
abstract void	processPartialResult(SlidingWindowAggregator.PartialAggregationResult partialResult)	update queue and aggregateResult
int	processTsBlock(org.apache.iotdb.tsfile.read.common.block.TsBlock tsBlock)
void	updateTimeRange(org.apache.iotdb.tsfile.read.common.TimeRange curTimeRange)

Methods inherited from class org.apache.iotdb.db.mpp.aggregation.Aggregator

getCurTimeRange, getOutputType, hasFinalResult, outputResult, processStatistics, processTsBlocks, reset

Methods inherited from class java.lang.Object

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

Field Detail

deque

protected java.util.Deque<SlidingWindowAggregator.PartialAggregationResult> deque

Constructor Detail

SlidingWindowAggregator

public SlidingWindowAggregator(Accumulator accumulator,
                               java.util.List<InputLocation[]> inputLocationList,
                               AggregationStep step)

Method Detail

processTsBlock

public int processTsBlock(org.apache.iotdb.tsfile.read.common.block.TsBlock tsBlock)

Overrides:

processTsBlock in class Aggregator

updateTimeRange

public void updateTimeRange(org.apache.iotdb.tsfile.read.common.TimeRange curTimeRange)

Overrides:

updateTimeRange in class Aggregator

evictingExpiredValue

protected abstract void evictingExpiredValue()

evicting expired element in queue and reset expired aggregateResult

processPartialResult

public abstract void processPartialResult(SlidingWindowAggregator.PartialAggregationResult partialResult)

update queue and aggregateResult