org.apache.iotdb.tsfile.write.chunk

Class AlignedChunkWriterImpl

java.lang.Object

org.apache.iotdb.tsfile.write.chunk.AlignedChunkWriterImpl

All Implemented Interfaces:

IChunkWriter

public class AlignedChunkWriterImpl
extends Object
implements IChunkWriter

Constructor Summary

Constructors

Constructor and Description
AlignedChunkWriterImpl(List<IMeasurementSchema> schemaList)
AlignedChunkWriterImpl(VectorMeasurementSchema schema)

Method Summary

Modifier and Type	Method and Description
boolean	checkIsChunkSizeOverThreshold(long threshold) Used for compaction to control the target chunk size.
void	clearPageWriter() set the current pageWriter to null, friendly for gc
long	estimateMaxSeriesMemSize() estimate memory usage of this series.
TSDataType	getCurrentValueChunkType()
long	getSerializedChunkSize() return the serialized size of the chunk header + all pages (not including the un-sealed page).
void	sealCurrentPage() seal the current page which may has not enough data points in force.
void	write(long time)
void	write(long time, Binary value, boolean isNull)
void	write(long time, boolean value, boolean isNull)
void	write(long time, double value, boolean isNull)
void	write(long time, float value, boolean isNull)
void	write(long time, int value, boolean isNull)
void	write(long time, long value, boolean isNull)
void	write(long time, TsPrimitiveType[] points)
void	writeToFileWriter(TsFileIOWriter tsfileWriter) flush data to TsFileIOWriter.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlignedChunkWriterImpl

public AlignedChunkWriterImpl(VectorMeasurementSchema schema)

Parameters:

schema - schema of this measurement

AlignedChunkWriterImpl

public AlignedChunkWriterImpl(List<IMeasurementSchema> schemaList)

Method Detail

write

public void write(long time,
                  int value,
                  boolean isNull)

write

public void write(long time,
                  long value,
                  boolean isNull)

write

public void write(long time,
                  boolean value,
                  boolean isNull)

write

public void write(long time,
                  float value,
                  boolean isNull)

write

public void write(long time,
                  double value,
                  boolean isNull)

write

public void write(long time,
                  Binary value,
                  boolean isNull)

write

public void write(long time,
                  TsPrimitiveType[] points)

write

public void write(long time)

writeToFileWriter

public void writeToFileWriter(TsFileIOWriter tsfileWriter)
                       throws IOException

Description copied from interface: IChunkWriter

flush data to TsFileIOWriter.

Specified by:

writeToFileWriter in interface IChunkWriter

Throws:

IOException

estimateMaxSeriesMemSize

public long estimateMaxSeriesMemSize()

Description copied from interface: IChunkWriter

estimate memory usage of this series.

Specified by:

estimateMaxSeriesMemSize in interface IChunkWriter

getSerializedChunkSize

public long getSerializedChunkSize()

Description copied from interface: IChunkWriter

return the serialized size of the chunk header + all pages (not including the un-sealed page). Notice, call this method before calling writeToFileWriter(), otherwise the page buffer in memory will be cleared.
If there is no data points in the chunk, return 0 (i.e., in this case, the size of header is not calculated, because nothing will be serialized latter)

Specified by:

getSerializedChunkSize in interface IChunkWriter

sealCurrentPage

public void sealCurrentPage()

Description copied from interface: IChunkWriter

seal the current page which may has not enough data points in force.

Specified by:

sealCurrentPage in interface IChunkWriter

clearPageWriter

public void clearPageWriter()

Description copied from interface: IChunkWriter

set the current pageWriter to null, friendly for gc

Specified by:

clearPageWriter in interface IChunkWriter

checkIsChunkSizeOverThreshold

public boolean checkIsChunkSizeOverThreshold(long threshold)

Used for compaction to control the target chunk size.

getCurrentValueChunkType

public TSDataType getCurrentValueChunkType()