com.hazelcast.nio.tcp.nonblocking

Interface MigratableHandler

All Superinterfaces:

SelectionHandler

All Known Implementing Classes:

AbstractHandler, NonBlockingSocketReader, NonBlockingSocketWriter

public interface MigratableHandler
extends SelectionHandler

A SelectionHandler that supports migration between NonBlockingIOThread instances. This API is called by the IOBalancer.

Method Summary

Methods

Modifier and Type	Method and Description
long	getEventCount() Get number of events recorded by the current handler.
NonBlockingIOThread	getOwner() Get NonBlockingIOThread currently owning this handler.
void	requestMigration(NonBlockingIOThread newOwner) Requests the MigratableHandler to move to the new NonBlockingIOThread.

Methods inherited from interface com.hazelcast.nio.tcp.nonblocking.SelectionHandler

handle, onFailure

Method Detail

requestMigration

void requestMigration(NonBlockingIOThread newOwner)

Requests the MigratableHandler to move to the new NonBlockingIOThread. This call will not wait for the migration to complete. This method can be called by any thread, and will probably be called by the IOBalancer. Call is ignored when handler is moving to the same NonBlockingIOThread.

Parameters:

newOwner - the NonBlockingIOThread that is going to own this MigratableHandler

getOwner

NonBlockingIOThread getOwner()

Get NonBlockingIOThread currently owning this handler. Handler owner is a thread running this handler. IOBalancer can decide to migrate a handler to another owner.

Returns:

current owner

getEventCount

long getEventCount()

Get number of events recorded by the current handler. It can be used to calculate whether this handler should be migrated to a different NonBlockingIOThread

Returns:

total number of events recorded by this handler