org.apache.parquet.column

Interface ColumnWriter

public interface ColumnWriter

writer for (repetition level, definition level, values) triplets

Method Summary

Modifier and Type	Method and Description
void	close() Close the underlying store.
long	getBufferedSizeInMemory() used to decide when to write a page or row group
void	write(Binary value, int repetitionLevel, int definitionLevel) writes the current value
void	write(boolean value, int repetitionLevel, int definitionLevel) writes the current value
void	write(double value, int repetitionLevel, int definitionLevel) writes the current value
void	write(float value, int repetitionLevel, int definitionLevel) writes the current value
void	write(int value, int repetitionLevel, int definitionLevel) writes the current value
void	write(long value, int repetitionLevel, int definitionLevel) writes the current value
void	writeNull(int repetitionLevel, int definitionLevel) writes the current null value

Method Detail

write

void write(int value,
           int repetitionLevel,
           int definitionLevel)

writes the current value

Parameters:

value - an int value

repetitionLevel - a repetition level

definitionLevel - a definition level

write

void write(long value,
           int repetitionLevel,
           int definitionLevel)

writes the current value

Parameters:

value - a long value

repetitionLevel - a repetition level

definitionLevel - a definition level

write

void write(boolean value,
           int repetitionLevel,
           int definitionLevel)

writes the current value

Parameters:

value - a boolean value

repetitionLevel - a repetition level

definitionLevel - a definition level

write

void write(Binary value,
           int repetitionLevel,
           int definitionLevel)

writes the current value

Parameters:

value - a Binary value

repetitionLevel - a repetition level

definitionLevel - a definition level

write

void write(float value,
           int repetitionLevel,
           int definitionLevel)

writes the current value

Parameters:

value - a float value

repetitionLevel - a repetition level

definitionLevel - a definition level

write

void write(double value,
           int repetitionLevel,
           int definitionLevel)

writes the current value

Parameters:

value - a double value

repetitionLevel - a repetition level

definitionLevel - a definition level

writeNull

void writeNull(int repetitionLevel,
               int definitionLevel)

writes the current null value

Parameters:

repetitionLevel - a repetition level

definitionLevel - a definition level

close

void close()

Close the underlying store. This should be called when there are no more data to be written.

getBufferedSizeInMemory

long getBufferedSizeInMemory()

used to decide when to write a page or row group

Returns:

the number of bytes of memory used to buffer the current data