com.hazelcast.nio.tcp

Interface MigratableHandler

All Superinterfaces:

SelectionHandler

All Known Implementing Classes:

AbstractSelectionHandler, ReadHandler, WriteHandler

public interface MigratableHandler
extends SelectionHandler

A SelectionHandler that supports migration between IOSelector 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.
IOSelector	getOwner() Get IOSelector currently owning this handler.
void	requestMigration(IOSelector newOwner) Requests the MigratableHandler to move to the new IOSelector.

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

handle

Method Detail

requestMigration

void requestMigration(IOSelector newOwner)

Requests the MigratableHandler to move to the new IOSelector. 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 IOSelector.

Parameters:

newOwner - the IOSelector that is going to own this MigratableHandler

getOwner

IOSelector getOwner()

Get IOSelector 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 IOSelector

Returns:

total number of events recorded by this handler