org.neo4j.causalclustering.core.replication

Interface ProgressTracker

All Known Implementing Classes:

ProgressTrackerImpl

public interface ProgressTracker

Keeps track of operations in progress. Operations move through two phases: - waiting for replication - waiting for result

Method Summary

Modifier and Type	Method and Description
void	abort(DistributedOperation operation) Called when an operation should be abnormally aborted and removed from the tracker.
int	inProgressCount() Returns a count of the current number of in-progress tracked operations.
Progress	start(DistributedOperation operation) Called to start tracking the progress of an operation.
void	trackReplication(DistributedOperation operation) Called when an operation has been replicated and is waiting for the operation to be locally applied.
void	trackResult(DistributedOperation operation, Result result) Called when an operation has been applied and a result is available.
void	triggerReplicationEvent() Called when a significant event related to replication has occurred (i.e.

Method Detail

start

Progress start(DistributedOperation operation)

Called to start tracking the progress of an operation.

Parameters:

operation - The operation to track.

Returns:

A container for the progress.

trackReplication

void trackReplication(DistributedOperation operation)

Called when an operation has been replicated and is waiting for the operation to be locally applied.

Parameters:

operation - The operation that has been replicated.

trackResult

void trackResult(DistributedOperation operation,
                 Result result)

Called when an operation has been applied and a result is available.

Parameters:

operation - The operation that has been applied.

result - The result of the operation.

abort

void abort(DistributedOperation operation)

Called when an operation should be abnormally aborted and removed from the tracker.

Parameters:

operation - The operation to be aborted.

triggerReplicationEvent

void triggerReplicationEvent()

Called when a significant event related to replication has occurred (i.e. leader switch).

inProgressCount

int inProgressCount()

Returns a count of the current number of in-progress tracked operations.

Returns:

A count of currently tracked operations..