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

Class AlignByDeviceDataSet

java.lang.Object

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

org.apache.iotdb.db.query.dataset.AlignByDeviceDataSet

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

This QueryDataSet is used for ALIGN_BY_DEVICE query result.

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.tsfile.read.query.dataset.QueryDataSet

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

Constructor Summary

Constructors

Constructor	Description
AlignByDeviceDataSet(AlignByDevicePlan alignByDevicePlan, QueryContext context, IQueryRouter queryRouter)

Method Summary

Modifier and Type	Method	Description
java.util.List<java.lang.String>	getMeasurements()
int	getPathsNum()
boolean	hasNextWithoutConstraint()
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

Constructor Detail

AlignByDeviceDataSet

public AlignByDeviceDataSet(AlignByDevicePlan alignByDevicePlan,
                            QueryContext context,
                            IQueryRouter queryRouter)
                     throws QueryProcessException

Throws:

QueryProcessException

Method Detail

getPathsNum

public int getPathsNum()

getMeasurements

public java.util.List<java.lang.String> getMeasurements()

hasNextWithoutConstraint

public boolean hasNextWithoutConstraint()
                                 throws java.io.IOException

Specified by:

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

Throws:

java.io.IOException

nextWithoutConstraint

public 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