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

Class DataSetWithTimeGenerator

java.lang.Object

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

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

public class DataSetWithTimeGenerator
extends QueryDataSet

query processing: (1) generate time by series that has filter (2) get value of series that does not have filter (3) construct RowRecord.

Nested Class Summary

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

QueryDataSet.EndPoint

Field Summary

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 and Description
DataSetWithTimeGenerator(List<Path> paths, List<Boolean> cached, List<TSDataType> dataTypes, TimeGenerator timeGenerator, List<FileSeriesReaderByTimestamp> readers) constructor of DataSetWithTimeGenerator.

Method Summary

Modifier and Type	Method and Description
boolean	hasNextWithoutConstraint()
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

DataSetWithTimeGenerator

public DataSetWithTimeGenerator(List<Path> paths,
                                List<Boolean> cached,
                                List<TSDataType> dataTypes,
                                TimeGenerator timeGenerator,
                                List<FileSeriesReaderByTimestamp> readers)

constructor of DataSetWithTimeGenerator.

Parameters:

paths - paths in List structure

cached - cached boolean in List(boolean) structure

dataTypes - TSDataTypes in List structure

timeGenerator - TimeGenerator object

readers - readers in List(FileSeriesReaderByTimestamp) structure

Method Detail

hasNextWithoutConstraint

public boolean hasNextWithoutConstraint()
                                 throws IOException

Specified by:

hasNextWithoutConstraint in class QueryDataSet

Throws:

IOException

nextWithoutConstraint

public RowRecord nextWithoutConstraint()
                                throws IOException

Specified by:

nextWithoutConstraint in class QueryDataSet

Throws:

IOException