[cdi-dev] Defining the order of event thru priority

[Emily Jiang]

I think differently. For Alternatives, the Alternative with the highest 
value is picked, while the others are ignored. There is no so much invoked 
sequentially. 

However, for interceptors/decorators/events, they are chained. Therefore, 
I think events should follow the same fashion as interceptors/decorators, 
which is to follow the ascending order.

Many thanks,
Emily
===========================
Emily Jiang
WebSphere Application Server, CDI Development Lead
 
MP 211, DE3A20, Winchester, Hampshire, England, SO21 2JN
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Email: emijiang at uk.ibm.com 
Lotus Notes: Emily Jiang/UK/IBM at IBMGB




From:   Martin Kouba <mkouba at redhat.com>
To:     Antoine Sabot-Durand <antoine at sabot-durand.net>, CDI Java EE 
Specification <cdi-dev at lists.jboss.org>
Date:   28/11/2016 12:10
Subject:        Re: [cdi-dev] Defining the order of event thru priority
Sent by:        cdi-dev-bounces at lists.jboss.org



Dne 28.11.2016 v 11:43 Antoine Sabot-Durand napsal(a):
> Hi all,
>
> In a recent discussion with Martin, I realized that the use of @Priotiy
> is not consistent in CDI 1.2:
>
> - For Interceptor and decorator the lowest value in @Priority is first
> (def in interceptor spec and 8.2.1)
> - For Alternatives the Highest value in @Priroty is first (def in 5.2.2)
>
> Since we have these different interpretation of @Priority value in the
> spec , we may find more consistent to change the definition of event
> ordering with the @Priority annotation.
> Right now we have:
>
> "Observers with smaller priority values are called first"
>
> We may find more intuitive to change it to:
>
> "Observers with higher priority values are called first"

I believe this one makes much more sense...
+1

>
> It will remove the oxymoron effect of the sentence and align this
> ordering on @Alternative way of using @Priorty.
>
> Wdyt?
>
> Antoine
>
>
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-- 
Martin Kouba
Software Engineer
Red Hat, Czech Republic
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