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

Class SeriesAggregateReader

java.lang.Object

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

All Implemented Interfaces:

IAggregateReader

public class SeriesAggregateReader
extends java.lang.Object
implements IAggregateReader

Constructor Summary

Constructors

Constructor	Description
SeriesAggregateReader(org.apache.iotdb.commons.path.PartialPath seriesPath, java.util.Set<java.lang.String> allSensors, org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType, QueryContext context, java.util.List<TsFileResource> seqFileResource, java.util.List<TsFileResource> unseqFileResource, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter, boolean ascending)
SeriesAggregateReader(org.apache.iotdb.commons.path.PartialPath seriesPath, java.util.Set<java.lang.String> allSensors, org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType, QueryContext context, QueryDataSource dataSource, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter, TsFileFilter fileFilter, boolean ascending)

Method Summary

Modifier and Type	Method	Description
boolean	canUseCurrentChunkStatistics()
boolean	canUseCurrentFileStatistics()
boolean	canUseCurrentPageStatistics()	only be used without value filter
org.apache.iotdb.tsfile.file.metadata.statistics.Statistics	currentChunkStatistics()
org.apache.iotdb.tsfile.file.metadata.statistics.Statistics	currentFileStatistics()
org.apache.iotdb.tsfile.file.metadata.statistics.Statistics	currentPageStatistics()	only be used without value filter
boolean	hasNextChunk()
boolean	hasNextFile()
boolean	hasNextPage()
boolean	isAscending()
org.apache.iotdb.tsfile.read.common.BatchData	nextPage()
void	skipCurrentChunk()
void	skipCurrentFile()
void	skipCurrentPage()

Methods inherited from class java.lang.Object

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

Constructor Detail

SeriesAggregateReader

public SeriesAggregateReader(org.apache.iotdb.commons.path.PartialPath seriesPath,
                             java.util.Set<java.lang.String> allSensors,
                             org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType,
                             QueryContext context,
                             QueryDataSource dataSource,
                             org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                             org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter,
                             TsFileFilter fileFilter,
                             boolean ascending)

SeriesAggregateReader

public SeriesAggregateReader(org.apache.iotdb.commons.path.PartialPath seriesPath,
                             java.util.Set<java.lang.String> allSensors,
                             org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType,
                             QueryContext context,
                             java.util.List<TsFileResource> seqFileResource,
                             java.util.List<TsFileResource> unseqFileResource,
                             org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                             org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter,
                             boolean ascending)

Method Detail

isAscending

public boolean isAscending()

Specified by:

isAscending in interface IAggregateReader

hasNextFile

public boolean hasNextFile()
                    throws java.io.IOException

Specified by:

hasNextFile in interface IAggregateReader

Throws:

java.io.IOException

canUseCurrentFileStatistics

public boolean canUseCurrentFileStatistics()
                                    throws java.io.IOException

Specified by:

canUseCurrentFileStatistics in interface IAggregateReader

Throws:

java.io.IOException

currentFileStatistics

public org.apache.iotdb.tsfile.file.metadata.statistics.Statistics currentFileStatistics()

Specified by:

currentFileStatistics in interface IAggregateReader

skipCurrentFile

public void skipCurrentFile()

Specified by:

skipCurrentFile in interface IAggregateReader

hasNextChunk

public boolean hasNextChunk()
                     throws java.io.IOException

Specified by:

hasNextChunk in interface IAggregateReader

Throws:

java.io.IOException

canUseCurrentChunkStatistics

public boolean canUseCurrentChunkStatistics()
                                     throws java.io.IOException

Specified by:

canUseCurrentChunkStatistics in interface IAggregateReader

Throws:

java.io.IOException

currentChunkStatistics

public org.apache.iotdb.tsfile.file.metadata.statistics.Statistics currentChunkStatistics()

Specified by:

currentChunkStatistics in interface IAggregateReader

skipCurrentChunk

public void skipCurrentChunk()

Specified by:

skipCurrentChunk in interface IAggregateReader

hasNextPage

public boolean hasNextPage()
                    throws java.io.IOException

Specified by:

hasNextPage in interface IAggregateReader

Throws:

java.io.IOException

canUseCurrentPageStatistics

public boolean canUseCurrentPageStatistics()
                                    throws java.io.IOException

Description copied from interface: IAggregateReader

only be used without value filter

Specified by:

canUseCurrentPageStatistics in interface IAggregateReader

Throws:

java.io.IOException

currentPageStatistics

public org.apache.iotdb.tsfile.file.metadata.statistics.Statistics currentPageStatistics()

Description copied from interface: IAggregateReader

only be used without value filter

Specified by:

currentPageStatistics in interface IAggregateReader

skipCurrentPage

public void skipCurrentPage()

Specified by:

skipCurrentPage in interface IAggregateReader

nextPage

public org.apache.iotdb.tsfile.read.common.BatchData nextPage()
                                                       throws java.io.IOException

Specified by:

nextPage in interface IAggregateReader

Throws:

java.io.IOException