org.apache.iotdb.db.query.reader.series

类 SeriesAggregateReader

java.lang.Object

org.apache.iotdb.db.query.reader.series.SeriesAggregateReader

所有已实现的接口:

IAggregateReader

public class SeriesAggregateReader
extends Object
implements IAggregateReader

构造器概要

构造器

构造器和说明
SeriesAggregateReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
SeriesAggregateReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)

方法概要

限定符和类型	方法和说明
boolean	canUseCurrentChunkStatistics()
boolean	canUseCurrentFileStatistics()
boolean	canUseCurrentPageStatistics() only be used without value filter
Statistics	currentChunkStatistics()
Statistics	currentFileStatistics()
Statistics	currentPageStatistics() only be used without value filter
boolean	hasNextChunk()
boolean	hasNextFile()
boolean	hasNextPage()
boolean	isAscending()
BatchData	nextPage()
void	skipCurrentChunk()
void	skipCurrentFile()
void	skipCurrentPage()

从类继承的方法 java.lang.Object

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

构造器详细资料

SeriesAggregateReader

public SeriesAggregateReader(PartialPath seriesPath,
                             Set<String> allSensors,
                             TSDataType dataType,
                             QueryContext context,
                             QueryDataSource dataSource,
                             Filter timeFilter,
                             Filter valueFilter,
                             TsFileFilter fileFilter,
                             boolean ascending)

SeriesAggregateReader

public SeriesAggregateReader(PartialPath seriesPath,
                             Set<String> allSensors,
                             TSDataType dataType,
                             QueryContext context,
                             List<TsFileResource> seqFileResource,
                             List<TsFileResource> unseqFileResource,
                             Filter timeFilter,
                             Filter valueFilter,
                             boolean ascending)

方法详细资料

isAscending

public boolean isAscending()

指定者:

isAscending 在接口中 IAggregateReader

hasNextFile

public boolean hasNextFile()
                    throws IOException

指定者:

hasNextFile 在接口中 IAggregateReader

抛出:

IOException

canUseCurrentFileStatistics

public boolean canUseCurrentFileStatistics()
                                    throws IOException

指定者:

canUseCurrentFileStatistics 在接口中 IAggregateReader

抛出:

IOException

currentFileStatistics

public Statistics currentFileStatistics()

指定者:

currentFileStatistics 在接口中 IAggregateReader

skipCurrentFile

public void skipCurrentFile()

指定者:

skipCurrentFile 在接口中 IAggregateReader

hasNextChunk

public boolean hasNextChunk()
                     throws IOException

指定者:

hasNextChunk 在接口中 IAggregateReader

抛出:

IOException

canUseCurrentChunkStatistics

public boolean canUseCurrentChunkStatistics()
                                     throws IOException

指定者:

canUseCurrentChunkStatistics 在接口中 IAggregateReader

抛出:

IOException

currentChunkStatistics

public Statistics currentChunkStatistics()

指定者:

currentChunkStatistics 在接口中 IAggregateReader

skipCurrentChunk

public void skipCurrentChunk()

指定者:

skipCurrentChunk 在接口中 IAggregateReader

hasNextPage

public boolean hasNextPage()
                    throws IOException

指定者:

hasNextPage 在接口中 IAggregateReader

抛出:

IOException

canUseCurrentPageStatistics

public boolean canUseCurrentPageStatistics()
                                    throws IOException

从接口复制的说明: IAggregateReader

only be used without value filter

指定者:

canUseCurrentPageStatistics 在接口中 IAggregateReader

抛出:

IOException

currentPageStatistics

public Statistics currentPageStatistics()

从接口复制的说明: IAggregateReader

only be used without value filter

指定者:

currentPageStatistics 在接口中 IAggregateReader

skipCurrentPage

public void skipCurrentPage()

指定者:

skipCurrentPage 在接口中 IAggregateReader

nextPage

public BatchData nextPage()
                   throws IOException

指定者:

nextPage 在接口中 IAggregateReader

抛出:

IOException