[wildfly-dev] WFCORE-1405 - Notification Registrars

[Kabir Khan]

> On 16 Jun 2016, at 10:29, Kabir Khan <kabir.khan at jboss.com> wrote:
> 
> 
>> On 15 Jun 2016, at 23:19, Kabir Khan <kabir.khan at jboss.com> wrote:
>> 
>> I have written up analysis/design notes for the new notification registrar mechanism at https://developer.jboss.org/wiki/DesignNotesForAbilityToRegisterAListenerintegratedWithTheManagementLayerThatWillBeNotifiedOfTheLifecycleServerEventsNotificationRegistrars
>> 
>> My main doubt is about the usefulness of the NotificationRegistrarContext.getModelControllerClient() method.
The only reason this is there is it was there in Brian's original draft. I think I'd like to remove it for now
>> The NotificationRegistrarContext is used by NotificationRegistrar.registerNotificationListeners(), which in turn is called by a service's start() method. The service is installed by an add handler. Is my memory of calling the ModelControllerClient execute methods at this stage a bad thing correct? I mention that the MCC can be cached for later use by the handlers, which on one hand I think should be ok since the handlers are executed on asynchronously,
> Actually, WFCORE-1157 makes the server state lifecycle events synchronous, so the above isn't 100% true
>> but on the other hand having notification handlers mess around with the model seems a bit strange as well.
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