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[jsr372-experts mirror] [jsr372-experts] Re: [527-InjectFacesContext] Support and review

From: Josh Juneau <juneau001_at_gmail.com>
Date: Wed, 24 Sep 2014 23:29:18 -0500

I definitely support the injection of FacesContext, and I agree that this
aligns well with "CDI everywhere".

Josh Juneau
juneau001_at_gmail.com
http://jj-blogger.blogspot.com
https://www.apress.com/index.php/author/author/view/id/1866


On Wed, Sep 24, 2014 at 5:22 PM, arjan tijms <arjan.tijms_at_gmail.com> wrote:

> Hi
>
> On Wed, Sep 24, 2014 at 10:20 PM, manfred riem <manfred.riem_at_oracle.com>
> wrote:
>>
>> since the other bean types can live longer than a request what does it
>> mean to have a reference to a FacesContext? Or phrased a bit differently
>> what would a FacesContext be used for outside the scope of a request?
>
>
> Well, it's not about using a FacesContext outside the scope of a request,
> it's about delegating each time to the one corresponding to the current
> request (and throwing an exception if there is no current request). This
> happens automatically in CDI when a proxy is injected (as happens for
> normal scoped beans).
>
> Without such proxy, CDI would inject a direct reference once and only
> once. With a proxy, CDI will transparently lookup the right actual
> reference with each call.
>
> So how did Seam solve the above problem?
>>
>
> I'm curious to find out as well. My guess is simply a request scoped bean
> that implements ServletRequest and delegates to the actual ServletRequest
> instance.
>
> Kind regards,
> Arjan
>