[seam-dev] Xml module and preventing bean installation

[Stuart Douglas]

I think this is something that probably belongs in seam-xml:

<veto expression="com.mypackge.*" />

I originally had veto syntax like this:

<veto>
  <t:Class1/>
  <t:Class2/>
</veto>

But we decided to remove it.

Stuart
________________________________________
From: Nicklas Karlsson [nickarls at gmail.com]
Sent: Sunday, 11 April 2010 6:03 PM
To: Dan Allen; Stuart Douglas; seam-dev at lists.jboss.org
Subject: Re: [seam-dev] Xml module and preventing bean installation

It could also veto stuff not in a regexp[]

On 4/11/10, Dan Allen <dan.j.allen at gmail.com> wrote:
> On Fri, Apr 9, 2010 at 7:44 PM, Stuart Douglas
> <stuart at baileyroberts.com.au>wrote:
>
>> After some discussion with Tihomir I have added an @XmlConfigured
>> annotation to seam-xml. This prevents the bean from being installed, so it
>> is possible to create beans with ambiguous dependencies and allow the user
>> to pick which one they want with XML configuration.
>>
>> The problem with this is that if you want to use it you now need a compile
>> time dependency on seam-xml just to get one annotation. Should we have a
>> @DoNotInstall (or whatever) annotation in weld-extensions instead, or is a
>> compile time dependency on seam-xml ok?
>>
>> Tihomir has pointed out that @XmlConfigured makes it much clearer what is
>> going on, and tells anyone reading the code to look in beans.xml, and I am
>> inclined to agree with him, but I would like to know what everyone else
>> thinks.
>>
>>
> Building on this, I was thinking that we should provide a @Veto annotation
> in a common module (perhaps Weld extensions), that can be used to prevent a
> class from being installed. The @Veto annotation would be an @Alternative
> stereotype. Naturally, this is pretty easy for users to create, but since
> the need is so common, I would think it makes sense to provide it. WDYT?
>
> -Dan
>
> --
> Dan Allen
> Senior Software Engineer, Red Hat | Author of Seam in Action
> Registered Linux User #231597
>
> http://mojavelinux.com
> http://mojavelinux.com/seaminaction
> http://www.google.com/profiles/dan.j.allen
>

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Nik