org.apache.iotdb.db.query.dataset

类 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

所有已实现的接口:

DirectAlignByTimeDataSet

public class UDTFAlignByTimeDataSet
extends UDTFDataSet
implements DirectAlignByTimeDataSet

嵌套类概要

从类继承的嵌套类/接口 org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

QueryDataSet.EndPoint

字段概要

字段

限定符和类型	字段和说明
protected TimeSelector	timeHeap

从类继承的字段 org.apache.iotdb.db.query.dataset.UDTFDataSet

queryId, rawQueryInputLayer, transformers, UDF_COLLECTOR_MEMORY_BUDGET_IN_MB, UDF_READER_MEMORY_BUDGET_IN_MB, UDF_TRANSFORMER_MEMORY_BUDGET_IN_MB, udtfPlan

从类继承的字段 org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet

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

从接口继承的字段 org.apache.iotdb.db.query.dataset.DirectAlignByTimeDataSet

FLAG

构造器概要

构造器

构造器和说明
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, IUDFInputDataSet inputDataSet, boolean keepNull)
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, List<ManagedSeriesReader> readersOfSelectedSeries) execute without value filter
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, TimeGenerator timestampGenerator, List<IReaderByTimestamp> readersOfSelectedSeries, List<List<Integer>> readerToIndexList, List<Boolean> cached) execute with value filter

方法概要

限定符和类型	方法和说明
org.apache.iotdb.service.rpc.thrift.TSQueryDataSet	fillBuffer(int fetchSize, WatermarkEncoder encoder)
boolean	hasNextWithoutConstraint()
protected void	initTimeHeap()
RowRecord	nextWithoutConstraint()
protected org.apache.iotdb.service.rpc.thrift.TSQueryDataSet	packBuffer(org.apache.iotdb.service.rpc.thrift.TSQueryDataSet tsQueryDataSet, PublicBAOS timeBAOS, PublicBAOS[] valueBAOSList, PublicBAOS[] bitmapBAOSList)
protected void	putPBOSToBuffer(PublicBAOS[] bitmapBAOSList, List<ByteBuffer> bitmapBufferList, int tsIndex)

从类继承的方法 org.apache.iotdb.db.query.dataset.UDTFDataSet

finalizeUDFs, initTransformers

从类继承的方法 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

从类继承的方法 java.lang.Object

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

字段详细资料

timeHeap

protected TimeSelector timeHeap

构造器详细资料

UDTFAlignByTimeDataSet

public UDTFAlignByTimeDataSet(QueryContext context,
                              UDTFPlan udtfPlan,
                              TimeGenerator timestampGenerator,
                              List<IReaderByTimestamp> readersOfSelectedSeries,
                              List<List<Integer>> readerToIndexList,
                              List<Boolean> cached)
                       throws IOException,
                              QueryProcessException

execute with value filter

抛出:

IOException

QueryProcessException

UDTFAlignByTimeDataSet

public UDTFAlignByTimeDataSet(QueryContext context,
                              UDTFPlan udtfPlan,
                              List<ManagedSeriesReader> readersOfSelectedSeries)
                       throws QueryProcessException,
                              IOException,
                              InterruptedException

execute without value filter

抛出:

QueryProcessException

IOException

InterruptedException

UDTFAlignByTimeDataSet

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

抛出:

QueryProcessException

IOException

方法详细资料

initTimeHeap

protected void initTimeHeap()
                     throws IOException,
                            QueryProcessException

抛出:

IOException

QueryProcessException

fillBuffer

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

指定者:

fillBuffer 在接口中 DirectAlignByTimeDataSet

抛出:

IOException

QueryProcessException

packBuffer

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

putPBOSToBuffer

protected void putPBOSToBuffer(PublicBAOS[] bitmapBAOSList,
                               List<ByteBuffer> bitmapBufferList,
                               int tsIndex)

hasNextWithoutConstraint

public boolean hasNextWithoutConstraint()

指定者:

hasNextWithoutConstraint 在类中 QueryDataSet

nextWithoutConstraint

public RowRecord nextWithoutConstraint()
                                throws IOException

指定者:

nextWithoutConstraint 在类中 QueryDataSet

抛出:

IOException