org.apache.iotdb.tsfile.file.metadata

Class AlignedTimeSeriesMetadata

java.lang.Object

org.apache.iotdb.tsfile.file.metadata.AlignedTimeSeriesMetadata

All Implemented Interfaces:

ITimeSeriesMetadata

public class AlignedTimeSeriesMetadata
extends Object
implements ITimeSeriesMetadata

Constructor Summary

Constructors

Constructor and Description
AlignedTimeSeriesMetadata(TimeseriesMetadata timeseriesMetadata, List<TimeseriesMetadata> valueTimeseriesMetadataList)

Method Summary

Modifier and Type	Method and Description
List<AlignedChunkMetadata>	getChunkMetadataList()
Statistics	getStatistics() If the vector contains only one sub sensor, just return the sub sensor's Statistics Otherwise, return the Statistics of the time column
Statistics	getStatistics(int index)
TimeseriesMetadata	getTimeseriesMetadata()
Statistics	getTimeStatistics()
List<TimeseriesMetadata>	getValueTimeseriesMetadataList()
boolean	isModified()
boolean	isSeq()
List<IChunkMetadata>	loadChunkMetadataList() If the chunkMetadataLoader is MemChunkMetadataLoader, the VectorChunkMetadata is already assembled while constructing the in-memory TsFileResource, so we just return the assembled VectorChunkMetadata list.
void	setChunkMetadataLoader(IChunkMetadataLoader chunkMetadataLoader)
void	setModified(boolean modified)
void	setSeq(boolean seq)

Methods inherited from class java.lang.Object

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

Constructor Detail

AlignedTimeSeriesMetadata

public AlignedTimeSeriesMetadata(TimeseriesMetadata timeseriesMetadata,
                                 List<TimeseriesMetadata> valueTimeseriesMetadataList)

Method Detail

getStatistics

public Statistics getStatistics()

If the vector contains only one sub sensor, just return the sub sensor's Statistics Otherwise, return the Statistics of the time column

Specified by:

getStatistics in interface ITimeSeriesMetadata

getStatistics

public Statistics getStatistics(int index)

getTimeStatistics

public Statistics getTimeStatistics()

isModified

public boolean isModified()

Specified by:

isModified in interface ITimeSeriesMetadata

setModified

public void setModified(boolean modified)

Specified by:

setModified in interface ITimeSeriesMetadata

isSeq

public boolean isSeq()

Specified by:

isSeq in interface ITimeSeriesMetadata

setSeq

public void setSeq(boolean seq)

Specified by:

setSeq in interface ITimeSeriesMetadata

loadChunkMetadataList

public List<IChunkMetadata> loadChunkMetadataList()
                                           throws IOException

If the chunkMetadataLoader is MemChunkMetadataLoader, the VectorChunkMetadata is already assembled while constructing the in-memory TsFileResource, so we just return the assembled VectorChunkMetadata list.

Otherwise, we need to assemble the ChunkMetadata of time column and the ChunkMetadata of all the subSensors to generate the VectorChunkMetadata

Specified by:

loadChunkMetadataList in interface ITimeSeriesMetadata

Returns:

the result has already been filtered by modification files

Throws:

IOException

getChunkMetadataList

public List<AlignedChunkMetadata> getChunkMetadataList()

setChunkMetadataLoader

public void setChunkMetadataLoader(IChunkMetadataLoader chunkMetadataLoader)

Specified by:

setChunkMetadataLoader in interface ITimeSeriesMetadata

getValueTimeseriesMetadataList

public List<TimeseriesMetadata> getValueTimeseriesMetadataList()

getTimeseriesMetadata

public TimeseriesMetadata getTimeseriesMetadata()