Package org.apache.iotdb.tsfile.read.reader.series

Class AbstractFileSeriesReader

java.lang.Object

org.apache.iotdb.tsfile.read.reader.series.AbstractFileSeriesReader

All Implemented Interfaces:

IBatchReader

Direct Known Subclasses:

EmptyFileSeriesReader, FileSeriesReader

public abstract class AbstractFileSeriesReader
extends Object
implements IBatchReader

Series reader is used to query one series of one tsfile.

Field Summary

Fields

Modifier and Type	Field	Description
protected IChunkLoader	chunkLoader
protected List<IChunkMetadata>	chunkMetadataList
protected IChunkReader	chunkReader
protected Filter	filter

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractFileSeriesReader(IChunkLoader chunkLoader, List<IChunkMetadata> chunkMetadataList, Filter filter)	constructor of FileSeriesReader.

Method Summary

Modifier and Type	Method	Description
protected abstract boolean	chunkSatisfied(IChunkMetadata chunkMetaData)
void	close()
boolean	hasNextBatch()
protected abstract void	initChunkReader(IChunkMetadata chunkMetaData)
BatchData	nextBatch()

Methods inherited from class java.lang.Object

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

Field Detail

chunkLoader

protected IChunkLoader chunkLoader

chunkMetadataList

protected List<IChunkMetadata> chunkMetadataList

chunkReader

protected IChunkReader chunkReader

filter

protected Filter filter

Constructor Detail

AbstractFileSeriesReader

protected AbstractFileSeriesReader(IChunkLoader chunkLoader,
                                   List<IChunkMetadata> chunkMetadataList,
                                   Filter filter)

constructor of FileSeriesReader.

Method Detail

hasNextBatch

public boolean hasNextBatch()
                     throws IOException

Specified by:

hasNextBatch in interface IBatchReader

Throws:

IOException

nextBatch

public BatchData nextBatch()
                    throws IOException

Specified by:

nextBatch in interface IBatchReader

Throws:

IOException

initChunkReader

protected abstract void initChunkReader(IChunkMetadata chunkMetaData)
                                 throws IOException

Throws:

IOException

chunkSatisfied

protected abstract boolean chunkSatisfied(IChunkMetadata chunkMetaData)

close

public void close()
           throws IOException

Specified by:

close in interface IBatchReader

Throws:

IOException