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http://team.ops4j.org/browse/QI-364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17564#comment-17564
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Paul Merlin commented on QI-364:
--------------------------------
I rewrote this with 2 interfaces for the clarity of discussion. We could stick
with Activator only handling both activation and passivation for the sake of
simplicity. Keeping a single name for both could be a documentation issue. I
have no strong opinion on this.
What I feel is important is both the varargs on the Declaration interfaces and
the @Activators annotation taking multiple arguments. This would allow to
declare several Acti(Passi)vator(s) on each Application/Layer/Module/Service
and should allow us to do it in a predictable order.
> Decoupling Service Activators
> -----------------------------
>
> Key: QI-364
> URL: http://team.ops4j.org/browse/QI-364
> Project: Qi4j
> Issue Type: New Feature
> Reporter: Niclas Hedhman
> Priority: Blocker
> Fix For: 2.0 - Reductionism
>
>
> In 1.x, Activatable was used to get Services up and running. However, I feel
> that the concepts are mixed up in a bad way, since Activatable initially
> relied on that the Activatable method was exposed like any other method, and
> that there could only be one. Later, we added that any Mixin that got
> instantiated, would have its Activatable methods called. But, a pure Mixin
> for only the purpose of starting up the service couldn't really be supported.
> Further, internally in Qi4j Runtime, there is an Activation mechanism in
> place;
> * User "activate" the application.
> * The Application activates the Layers.
> * Each Layer activates the Modules.
> * Each Module activates the Services (if instantiateOnStartup).
> The current system is fragile (if a Mixin with the start-up code has its
> method(s) overridden it will not be instantiated), and we need to find a new
> solution. This will break compatibility, so it is imperative that this is
> solved prior to 2.0 release.
> Action item 1; *Remove Activatable interface*
> There are possibly a few ways to provide this functionality, listed in
> individual comments below.
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