org.apache.cassandra.io.sstable.format

Interface SSTableFlushObserver

All Known Implementing Classes:

PerSSTableIndexWriter

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	nextUnfilteredCluster(Unfiltered unfilteredCluster) Called after the unfiltered cluster 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 nextUnfilteredCluster(Unfiltered)).

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 nextUnfilteredCluster(Unfiltered)).

Parameters:

key - The key being appended to SSTable.

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

nextUnfilteredCluster

void nextUnfilteredCluster(Unfiltered unfilteredCluster)

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

Parameters:

unfilteredCluster - The unfiltered cluster being added to SSTable.

complete

void complete()

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