Package io.trino.parquet.reader.flat

Interface ColumnAdapter<BufferType>

All Known Implementing Classes:

BinaryColumnAdapter, ByteColumnAdapter, Fixed12ColumnAdapter, Int128ColumnAdapter, IntColumnAdapter, LongColumnAdapter, ShortColumnAdapter

public interface ColumnAdapter<BufferType>

Method Summary

Modifier and Type	Method	Description
void	copyValue(BufferType source, int sourceIndex, BufferType destination, int destinationIndex)
BufferType	createBuffer(int size)
Block	createNonNullBlock(BufferType values)
Block	createNullableBlock(boolean[] nulls, BufferType values)
default Block	createNullableDictionaryBlock(BufferType dictionary, int nonNullsCount)
default BufferType	createTemporaryBuffer(int currentOffset, int size, BufferType buffer)	Temporary buffer used for null unpacking
void	decodeDictionaryIds(BufferType values, int offset, int length, int[] ids, BufferType dictionary)
long	getSizeInBytes(BufferType values)
BufferType	merge(List<BufferType> buffers)
default void	unpackNullValues(BufferType source, BufferType destination, boolean[] isNull, int destOffset, int nonNullCount, int totalValuesCount)

Method Details

createTemporaryBuffer

default BufferType createTemporaryBuffer(int currentOffset,
 int size,
 BufferType buffer)

Temporary buffer used for null unpacking

createBuffer

BufferType createBuffer(int size)

copyValue

void copyValue(BufferType source,
 int sourceIndex,
 BufferType destination,
 int destinationIndex)

createNullableBlock

Block createNullableBlock(boolean[] nulls,
 BufferType values)

createNullableDictionaryBlock

default Block createNullableDictionaryBlock(BufferType dictionary,
 int nonNullsCount)

createNonNullBlock

Block createNonNullBlock(BufferType values)

unpackNullValues

default void unpackNullValues(BufferType source,
 BufferType destination,
 boolean[] isNull,
 int destOffset,
 int nonNullCount,
 int totalValuesCount)

decodeDictionaryIds

void decodeDictionaryIds(BufferType values,
 int offset,
 int length,
 int[] ids,
 BufferType dictionary)

getSizeInBytes

long getSizeInBytes(BufferType values)

merge

BufferType merge(List<BufferType> buffers)