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

Class Aggregator

java.lang.Object

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

Direct Known Subclasses:

SlidingWindowAggregator

public class Aggregator
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
protected Accumulator	accumulator
protected org.apache.iotdb.tsfile.read.common.TimeRange	curTimeRange
protected java.util.List<InputLocation[]>	inputLocationList
protected AggregationStep	step

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
org.apache.iotdb.tsfile.read.common.TimeRange	getCurTimeRange()
org.apache.iotdb.tsfile.file.metadata.enums.TSDataType[]	getOutputType()
boolean	hasFinalResult()
void	outputResult(org.apache.iotdb.tsfile.read.common.block.column.ColumnBuilder[] columnBuilder)
void	processStatistics(org.apache.iotdb.tsfile.file.metadata.statistics.Statistics[] statistics)	Used for SeriesAggregateScanOperator.
int	processTsBlock(org.apache.iotdb.tsfile.read.common.block.TsBlock tsBlock)
void	processTsBlocks(org.apache.iotdb.tsfile.read.common.block.TsBlock[] tsBlock)
void	reset()
void	updateTimeRange(org.apache.iotdb.tsfile.read.common.TimeRange curTimeRange)

Methods inherited from class java.lang.Object

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

Field Detail

accumulator

protected final Accumulator accumulator

inputLocationList

protected java.util.List<InputLocation[]> inputLocationList

step

protected final AggregationStep step

curTimeRange

protected org.apache.iotdb.tsfile.read.common.TimeRange curTimeRange

Constructor Detail

Aggregator

public Aggregator(Accumulator accumulator,
                  AggregationStep step)

Aggregator

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

Method Detail

processTsBlock

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

processTsBlocks

public void processTsBlocks(org.apache.iotdb.tsfile.read.common.block.TsBlock[] tsBlock)

outputResult

public void outputResult(org.apache.iotdb.tsfile.read.common.block.column.ColumnBuilder[] columnBuilder)

processStatistics

public void processStatistics(org.apache.iotdb.tsfile.file.metadata.statistics.Statistics[] statistics)

Used for SeriesAggregateScanOperator.

getOutputType

public org.apache.iotdb.tsfile.file.metadata.enums.TSDataType[] getOutputType()

reset

public void reset()

hasFinalResult

public boolean hasFinalResult()

updateTimeRange

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

getCurTimeRange

public org.apache.iotdb.tsfile.read.common.TimeRange getCurTimeRange()