Package org.infinispan.distribution

Class TriangleOrderManager

java.lang.Object

org.infinispan.distribution.TriangleOrderManager

public class TriangleOrderManager
extends Object

It manages the order of updates from the primary owner to backup owner.

It depends on the cache topology id. The primary owner assigns the sequence number to the backup command and then sends it to the backup owner. In the backup owner, the command awaits until it is its turn to be executed.

If the command topology id does not match, it throws an OutdatedTopologyException.

The sequence order starts with 1 and it is per segment based. This allows segments to be updated concurrently.

Since:

9.0

Author:

Pedro Ruivo

Constructor Summary

Constructors

Constructor	Description
TriangleOrderManager(int segments)

Method Summary

Modifier and Type	Method	Description
boolean	isNext(int segmentId, long sequenceNumber, int commandTopologyId)
long	latestSent(int segmentId, int topologyId)	Meant for testing only.
void	markDelivered(int segmentId, long sequenceNumber, int commandTopologyId)
long	next(int segmentId, int commandTopologyId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TriangleOrderManager

public TriangleOrderManager(int segments)

Method Details

next

public long next(int segmentId,
 int commandTopologyId)

isNext

public boolean isNext(int segmentId,
 long sequenceNumber,
 int commandTopologyId)

markDelivered

public void markDelivered(int segmentId,
 long sequenceNumber,
 int commandTopologyId)

latestSent

public long latestSent(int segmentId,
 int topologyId)

Meant for testing only.

Returns:

The latest sequence number sent for segment segmentId in topology topologyId.