com.facebook.presto.spi.block

Interface BlockEncoding

All Known Implementing Classes:

ArrayBlockEncoding, DictionaryBlockEncoding, FixedWidthBlockEncoding, InterleavedBlockEncoding, LazyBlockEncoding, LazySliceArrayBlockEncoding, RunLengthBlockEncoding, SliceArrayBlockEncoding, VariableWidthBlockEncoding

public interface BlockEncoding

Method Summary

Modifier and Type	Method and Description
int	getEstimatedSize(Block block) Estimated serialized block size
BlockEncodingFactory	getFactory() Return associated factory
String	getName() Gets the unique name of this encoding.
Block	readBlock(io.airlift.slice.SliceInput input) Read a block from the specified input.
void	writeBlock(io.airlift.slice.SliceOutput sliceOutput, Block block) Write the specified block to the specified output

Method Detail

getName

String getName()

Gets the unique name of this encoding.

readBlock

Block readBlock(io.airlift.slice.SliceInput input)

Read a block from the specified input. The returned block should begin at the specified position.

writeBlock

void writeBlock(io.airlift.slice.SliceOutput sliceOutput,
                Block block)

Write the specified block to the specified output

getEstimatedSize

int getEstimatedSize(Block block)

Estimated serialized block size

getFactory

BlockEncodingFactory getFactory()

Return associated factory