ostore.update
Class UpdateStage

java.lang.Object
  |
  +--ostore.update.UpdateStage

All Implemented Interfaces:

EventHandlerIF, ProfilableIF, SingleThreadedEventHandlerIF

public class UpdateStage

extends Object

implements SingleThreadedEventHandlerIF, EventHandlerIF, ProfilableIF

The UpdateStage is responsible for evaluating and applying updates. The UpdateStage receives UpdateRequests from the InnerRing and returns UpdateResults to the InnerRing. It also manages any blocking cache operations caused by the update.

Version:

$Id: UpdateStage.java,v 1.63 2004/05/13 20:17:22 hweather Exp $

Author:

Patrick R. Eaton

Constructor Summary

UpdateStage()

Method Summary

void	apply_update(UpdateRequest request, UpdateContinuation continuation)
void	destroy()
void	handleEvent(QueueElementIF element)
void	handleEvents(QueueElementIF[] element_array)
void	init(ConfigDataIF config)
int	profileSize()

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateStage

public UpdateStage()

Method Detail

handleEvent

public void handleEvent(QueueElementIF element)
                 throws EventHandlerException

Specified by:

handleEvent in interface EventHandlerIF

EventHandlerException

handleEvents

public void handleEvents(QueueElementIF[] element_array)
                  throws EventHandlerException

Specified by:

handleEvents in interface EventHandlerIF

EventHandlerException

init

public void init(ConfigDataIF config)
          throws Exception

Specified by:

init in interface EventHandlerIF

Exception

destroy

public void destroy()
             throws Exception

Specified by:

destroy in interface EventHandlerIF

Exception

profileSize

public int profileSize()

Specified by:

profileSize in interface ProfilableIF

apply_update

public void apply_update(UpdateRequest request,
                         UpdateContinuation continuation)