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

Class GroupByTimeEngineDataSet

java.lang.Object

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

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

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

Direct Known Subclasses:

GroupByWithoutValueFilterDataSet, GroupByWithValueFilterDataSet

public abstract class GroupByTimeEngineDataSet
extends GroupByTimeDataSet

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 inherited from class org.apache.iotdb.db.query.dataset.groupby.GroupByTimeDataSet

curAggregateResults, curAggrTimeRange, curPreAggrTimeRange, endTime, hasCachedTimeInterval, interval, isIntervalByMonth, isSlidingStepByMonth, leftCRightO, queryId, slidingStep, slidingWindowGroupByExecutors, 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
GroupByTimeEngineDataSet()
GroupByTimeEngineDataSet(QueryContext context, GroupByTimePlan groupByTimePlan)

Method Summary

Modifier and Type	Method	Description
protected org.apache.iotdb.tsfile.read.common.RowRecord	constructRowRecord(AggregateResult[] aggregateResultList)
AggregateResult[]	getCurAggregateResults()
protected abstract AggregateResult[]	getNextAggregateResult()
protected boolean	isEndCal()
org.apache.iotdb.tsfile.read.common.RowRecord	nextWithoutConstraint()
protected void	updatePreAggrInterval()

Methods inherited from class org.apache.iotdb.db.query.dataset.groupby.GroupByTimeDataSet

getStartTime, hasNextWithoutConstraint, initGroupByTimeDataSetFields, nextTimePartition

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

Constructor Detail

GroupByTimeEngineDataSet

public GroupByTimeEngineDataSet()

GroupByTimeEngineDataSet

public GroupByTimeEngineDataSet(QueryContext context,
                                GroupByTimePlan groupByTimePlan)

Method Detail

nextWithoutConstraint

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

Specified by:

nextWithoutConstraint in class GroupByTimeDataSet

Throws:

java.io.IOException

getNextAggregateResult

protected abstract AggregateResult[] getNextAggregateResult()
                                                     throws java.io.IOException

Throws:

java.io.IOException

constructRowRecord

protected org.apache.iotdb.tsfile.read.common.RowRecord constructRowRecord(AggregateResult[] aggregateResultList)

isEndCal

protected boolean isEndCal()

updatePreAggrInterval

protected void updatePreAggrInterval()

getCurAggregateResults

public AggregateResult[] getCurAggregateResults()