Package org.apache.iotdb.db.query.dataset.groupby

Class GroupByTimeDataSet

java.lang.Object

org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

org.apache.iotdb.db.query.dataset.groupby.GroupByTimeDataSet

Direct Known Subclasses:

GroupByFillDataSet, GroupByTimeEngineDataSet

public abstract class GroupByTimeDataSet
extends org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet.EndPoint

Field Summary

Fields

Modifier and Type	Field	Description
protected AggregateResult[]	curAggregateResults
protected org.apache.iotdb.tsfile.read.common.TimeRange	curAggrTimeRange
protected org.apache.iotdb.tsfile.read.common.TimeRange	curPreAggrTimeRange
protected long	endTime
protected boolean	hasCachedTimeInterval
protected long	interval
protected boolean	isIntervalByMonth
protected boolean	isSlidingStepByMonth
protected boolean	leftCRightO
protected long	queryId
protected long	slidingStep
protected SlidingWindowGroupByExecutor[]	slidingWindowGroupByExecutors
protected long	startTime

Fields inherited from class org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

alreadyReturnedRowNum, ascending, columnNum, dataTypes, endPoint, fetchSize, paths, rowLimit, rowOffset, withoutAllNull, withoutAnyNull, withoutNullColumnsIndex

Constructor Summary

Constructors

Constructor	Description
GroupByTimeDataSet()
GroupByTimeDataSet(QueryContext context, GroupByTimePlan groupByTimePlan)	groupBy query.

Method Summary

Modifier and Type	Method	Description
long	getStartTime()
boolean	hasNextWithoutConstraint()
protected void	initGroupByTimeDataSetFields(QueryContext context, GroupByTimePlan groupByTimePlan)
org.apache.iotdb.tsfile.read.common.TimeRange	nextTimePartition()
abstract org.apache.iotdb.tsfile.read.common.RowRecord	nextWithoutConstraint()

Methods inherited from class org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

decreaseAlreadyReturnedRowNum, getColumnNum, getDataTypes, getEndPoint, getPaths, getRowLimit, getRowOffset, getWithoutNullColumnsIndex, hasLimit, hasNext, initQueryDataSetFields, isWithoutAllNull, isWithoutAnyNull, next, setColumnNum, setDataTypes, setEndPoint, setFetchSize, setRowLimit, setRowOffset, setWithoutAllNull, setWithoutAnyNull, setWithoutNullColumnsIndex, withoutNullFilter

Methods inherited from class java.lang.Object

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

Field Detail

queryId

protected long queryId

interval

protected long interval

slidingStep

protected long slidingStep

startTime

protected long startTime

endTime

protected long endTime

curAggrTimeRange

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

hasCachedTimeInterval

protected boolean hasCachedTimeInterval

curPreAggrTimeRange

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

leftCRightO

protected boolean leftCRightO

isIntervalByMonth

protected boolean isIntervalByMonth

isSlidingStepByMonth

protected boolean isSlidingStepByMonth

curAggregateResults

protected AggregateResult[] curAggregateResults

slidingWindowGroupByExecutors

protected SlidingWindowGroupByExecutor[] slidingWindowGroupByExecutors

Constructor Detail

GroupByTimeDataSet

public GroupByTimeDataSet()

GroupByTimeDataSet

public GroupByTimeDataSet(QueryContext context,
                          GroupByTimePlan groupByTimePlan)

groupBy query.

Method Detail

initGroupByTimeDataSetFields

protected void initGroupByTimeDataSetFields(QueryContext context,
                                            GroupByTimePlan groupByTimePlan)

hasNextWithoutConstraint

public boolean hasNextWithoutConstraint()

Specified by:

hasNextWithoutConstraint in class org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

nextWithoutConstraint

public abstract org.apache.iotdb.tsfile.read.common.RowRecord nextWithoutConstraint()
                                                                             throws java.io.IOException

Specified by:

nextWithoutConstraint in class org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

Throws:

java.io.IOException

getStartTime

public long getStartTime()

nextTimePartition

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