GWTApplication.client
Class FaultUpdateMonitor

java.lang.Object
  com.google.gwt.user.client.Timer
      GWTApplication.client.FaultUpdateMonitor

 class FaultUpdateMonitor
extends com.google.gwt.user.client.Timer

This class will be used to check the database intermittingly to see if any of the faults which listeners have registered an interest in have been updated. If any faults have been updated then the listeners are informed of the faults which have changed since the last time that we checked.

Version:

$Id: FaultUpdateMonitor.java,v 1.6 2007/09/06 07:58:12 cb Exp $

Author:

Craige Bevil

See Also:

SearchResultFormatter

Field Summary

private InternationalizationConstants	internationalizationConstants This class will be used for internationalization so that we can flick between the locales of English and Spanish.
(package private) java.util.HashMap	Listeners This is a list of the fault listeners
(package private) FaultServiceAsync	svc This is the service which will be used to access the servlet which is running in the tomcat container
(package private) java.util.Date	timeOfLastUpdateCheck This is the time in milliseconds since 1970 since the last time that we checked if the faults had been updated

Constructor Summary

FaultUpdateMonitor(FaultServiceAsync svc)
Constructor

Method Summary

void	addListener(FaultListener faultListener) Will be used by a client to register itself as a listener so that it will be informed when faults which it is interested in are changed in the database.
void	run() Obligation of the TimerTask interface and is called intermittingly.

Methods inherited from class com.google.gwt.user.client.Timer

cancel, schedule, scheduleRepeating

Methods inherited from class java.lang.Object

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

Field Detail

svc

FaultServiceAsync svc

This is the service which will be used to access the servlet which is running in the tomcat container

timeOfLastUpdateCheck

java.util.Date timeOfLastUpdateCheck

This is the time in milliseconds since 1970 since the last time that we checked if the faults had been updated

Listeners

java.util.HashMap Listeners

This is a list of the fault listeners

internationalizationConstants

private InternationalizationConstants internationalizationConstants

This class will be used for internationalization so that we can flick between the locales of English and Spanish.

Constructor Detail

FaultUpdateMonitor

FaultUpdateMonitor(FaultServiceAsync svc)

Constructor

Method Detail

run

public void run()

Obligation of the TimerTask interface and is called intermittingly. This calls servlet operation which will check to see if any of the faults have been updated and if so it will inform the listener.

Specified by:

run in class com.google.gwt.user.client.Timer

addListener

public void addListener(FaultListener faultListener)

Will be used by a client to register itself as a listener so that it will be informed when faults which it is interested in are changed in the database.

Parameters:

faultListener - This is the object which will be called when any one of the faults listed in the faultsOfInterest array are updated.