[jboss-as7-dev] interface config: not & any

Heiko Braun hbraun at redhat.com
Thu Nov 24 02:46:24 EST 2011



+1

I can see use cases for <not/> as well. But <any/> seems to be covered by the regular constraints already.

Ike

On Nov 23, 2011, at 6:35 PM, Brian Stansberry wrote:

> On 11/23/11 10:21 AM, David M. Lloyd wrote:
>> On 11/23/2011 07:05 AM, Heiko Braun wrote:
>>> 
>>> 
>>> I've finished the first cut of the interface configuration according
>>> to the common rules. Now I am wondering if<any/>   and<not/>
>>> constraints are really required. IMO it's overly complex already. I
>>> don't believe anyone will use the additional constraints.
>> 
>> They're in there to support cloud deployment where complex criteria are
>> required to select an interface (the same configuration has to be
>> applicable to any node).
>> 
> 
> Can anyone think of a useful scenario for <any/> that can't be satisfied 
> another way?  That one strikes me as something that sounded cool at the 
> time (lobby of hotel at JBW 2010) but adds a lot of console and CLI 
> complexity for no clear gain.
> 
> The semantics of <any/> are if *any* of the nested criteria are met, 
> then the <any/> criteria is met.
> 
> For <not> it's pretty easy to see scenarios: <not><public/></not> etc.
> 
> -- 
> Brian Stansberry
> Principal Software Engineer
> JBoss by Red Hat
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