org.apache.ratis.statemachine

Interface StateMachine.DataStream

Enclosing interface:

StateMachine

public static interface StateMachine.DataStream

For streaming state machine data.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<?>	cleanUp() Clean up asynchronously this stream.
WritableByteChannel	getWritableByteChannel()

Method Detail

getWritableByteChannel

WritableByteChannel getWritableByteChannel()

Returns:

a channel for streaming state machine data.

cleanUp

CompletableFuture<?> cleanUp()

Clean up asynchronously this stream. When there is an error, this method is invoked to clean up the associated resources. If this stream is not yet linked (see DataApi#link(DataStream, LogEntryProto)), the state machine may choose to remove the data or to keep the data internally for future recovery. If this stream is already linked, the data must not be removed.

Returns:

a future for the cleanup task.