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

Class UDTFAlignByTimeDataSet

java.lang.Object

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

org.apache.iotdb.db.query.dataset.UDTFDataSet

org.apache.iotdb.db.query.dataset.UDTFAlignByTimeDataSet

All Implemented Interfaces:

DirectAlignByTimeDataSet

public class UDTFAlignByTimeDataSet
extends UDTFDataSet
implements DirectAlignByTimeDataSet

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 TimeSelector	timeHeap

Fields inherited from class org.apache.iotdb.db.query.dataset.UDTFDataSet

queryDataSetInputLayer, queryId, transformers, UDF_COLLECTOR_MEMORY_BUDGET_IN_MB, UDF_READER_MEMORY_BUDGET_IN_MB, UDF_TRANSFORMER_MEMORY_BUDGET_IN_MB, udtfPlan

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

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

Fields inherited from interface org.apache.iotdb.db.query.dataset.DirectAlignByTimeDataSet

FLAG

Constructor Summary

Constructors

Constructor	Description
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, java.util.List<ManagedSeriesReader> readersOfSelectedSeries)	execute without value filter
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, IUDFInputDataSet inputDataSet, boolean keepNull)
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, org.apache.iotdb.tsfile.read.query.timegenerator.TimeGenerator timestampGenerator, java.util.List<IReaderByTimestamp> readersOfSelectedSeries, java.util.List<java.util.List<java.lang.Integer>> readerToIndexList, java.util.List<java.lang.Boolean> cached)	execute with value filter

Method Summary

Modifier and Type	Method	Description
org.apache.iotdb.service.rpc.thrift.TSQueryDataSet	fillBuffer(int fetchSize, WatermarkEncoder encoder)
boolean	hasNextWithoutConstraint()
protected void	initTimeHeap()
org.apache.iotdb.tsfile.read.common.RowRecord	nextWithoutConstraint()
protected org.apache.iotdb.service.rpc.thrift.TSQueryDataSet	packBuffer(org.apache.iotdb.service.rpc.thrift.TSQueryDataSet tsQueryDataSet, org.apache.iotdb.tsfile.utils.PublicBAOS timeBAOS, org.apache.iotdb.tsfile.utils.PublicBAOS[] valueBAOSList, org.apache.iotdb.tsfile.utils.PublicBAOS[] bitmapBAOSList)
protected void	putPBOSToBuffer(org.apache.iotdb.tsfile.utils.PublicBAOS[] bitmapBAOSList, java.util.List<java.nio.ByteBuffer> bitmapBufferList, int tsIndex)

Methods inherited from class org.apache.iotdb.db.query.dataset.UDTFDataSet

finalizeUDFs, initTransformers

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

timeHeap

protected TimeSelector timeHeap

Constructor Detail

UDTFAlignByTimeDataSet

public UDTFAlignByTimeDataSet(QueryContext context,
                              UDTFPlan udtfPlan,
                              org.apache.iotdb.tsfile.read.query.timegenerator.TimeGenerator timestampGenerator,
                              java.util.List<IReaderByTimestamp> readersOfSelectedSeries,
                              java.util.List<java.util.List<java.lang.Integer>> readerToIndexList,
                              java.util.List<java.lang.Boolean> cached)
                       throws java.io.IOException,
                              QueryProcessException

execute with value filter

Throws:

java.io.IOException

QueryProcessException

UDTFAlignByTimeDataSet

public UDTFAlignByTimeDataSet(QueryContext context,
                              UDTFPlan udtfPlan,
                              java.util.List<ManagedSeriesReader> readersOfSelectedSeries)
                       throws QueryProcessException,
                              java.io.IOException,
                              java.lang.InterruptedException

execute without value filter

Throws:

QueryProcessException

java.io.IOException

java.lang.InterruptedException

UDTFAlignByTimeDataSet

public UDTFAlignByTimeDataSet(QueryContext context,
                              UDTFPlan udtfPlan,
                              IUDFInputDataSet inputDataSet,
                              boolean keepNull)
                       throws QueryProcessException,
                              java.io.IOException

Throws:

QueryProcessException

java.io.IOException

Method Detail

initTimeHeap

protected void initTimeHeap()
                     throws java.io.IOException,
                            QueryProcessException

Throws:

java.io.IOException

QueryProcessException

fillBuffer

public org.apache.iotdb.service.rpc.thrift.TSQueryDataSet fillBuffer(int fetchSize,
                                                                     WatermarkEncoder encoder)
                                                              throws java.io.IOException,
                                                                     QueryProcessException

Specified by:

fillBuffer in interface DirectAlignByTimeDataSet

Throws:

java.io.IOException

QueryProcessException

packBuffer

protected org.apache.iotdb.service.rpc.thrift.TSQueryDataSet packBuffer(org.apache.iotdb.service.rpc.thrift.TSQueryDataSet tsQueryDataSet,
                                                                        org.apache.iotdb.tsfile.utils.PublicBAOS timeBAOS,
                                                                        org.apache.iotdb.tsfile.utils.PublicBAOS[] valueBAOSList,
                                                                        org.apache.iotdb.tsfile.utils.PublicBAOS[] bitmapBAOSList)

putPBOSToBuffer

protected void putPBOSToBuffer(org.apache.iotdb.tsfile.utils.PublicBAOS[] bitmapBAOSList,
                               java.util.List<java.nio.ByteBuffer> bitmapBufferList,
                               int tsIndex)

hasNextWithoutConstraint

public boolean hasNextWithoutConstraint()

Specified by:

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

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