org.apache.cassandra.io.sstable.format

Interface SSTableFlushObserver

public interface SSTableFlushObserver

Observer for events in the lifecycle of writing out an sstable.

Method Summary

Modifier and Type	Method and Description
void	begin() Called before writing any data to the sstable.
void	complete() Called when all data is written to the file and it's ready to be finished up.
void	nextCell(ColumnData cell) Called after the cell is written to the sstable.
void	startPartition(DecoratedKey key, long indexPosition) Called when a new partition in being written to the sstable, but before any cells are processed (see nextCell(ColumnData)).

Method Detail

begin

void begin()

Called before writing any data to the sstable.

startPartition

void startPartition(DecoratedKey key,
                    long indexPosition)

Called when a new partition in being written to the sstable, but before any cells are processed (see nextCell(ColumnData)).

Parameters:

key - The key being appended to SSTable.

indexPosition - The position of the key in the SSTable PRIMARY_INDEX file.

nextCell

void nextCell(ColumnData cell)

Called after the cell is written to the sstable. Will be preceded by a call to startPartition(DecoratedKey, long), and the cell should be assumed to belong to that row.

Parameters:

cell - The cell being added to the row.

complete

void complete()

Called when all data is written to the file and it's ready to be finished up.