I think your example is missing a little something.

I would tend to agree that Tapestry is about 1% too clever in a couple
of areas; I would certainly do some things a bit differently, with
years of hindsight. Now it becomes an issue of dealing with backwards
compatibility if we change something this fundamental.

On Fri, Mar 23, 2012 at 7:12 AM, trsvax <[email protected]> wrote:
> First I'll say Tapestry 5 is the best most flexible framework I've ever used
> but,
>
> I've voiced my opinion about informal parameters in the past and I promise
> this is the last time.
>
> I understand the value of the ad hoc way parameters are passed to
> components/mixins but it seems like there should be a way to specify
> precisely what parameters go to what components/mixins and I have not been
> able to find one. If I'm wrong about this I apologize in advance.
>
> Consider the following mixin example running under 5.3.2
>
> public class FW {
>        @Parameter(defaultPrefix="literal")
>        private String type;
>
>        @Inject
>        private Logger logger;
>
>        @SetupRender
>        private void setupRender() {
>                logger.info("type: {}",type);
>        }
> }
>
> with the following tml
>
>        <t:pagelink page="index" t:mixins="fw"
> fw.type="btn-primary">link</t:pagelink>
>         link
>        <button t:type="any" t:mixins="fw" 
> fw.type="btn-primary">button</button>
>
> I would expect the output to be:
>
> [INFO] mixins.FW type: btn-primary
> [INFO] mixins.FW type: btn-primary
> [INFO] mixins.FW type: btn-primary
>
> but I get:
>
> [INFO] mixins.FW type: btn-primary
> [INFO] mixins.FW type: btn-primary
> [INFO] mixins.FW type: submit
>
> It seems like if I go to all the trouble to namespace my parameters and I
> don't have @SupportsInformalParameters I should get mine and mine only. I'd
> be willing to try and provide a patch if there is interest in one.
>
>
> Thanks for your patience,
> Barry
>
>
>
>
>
>
> --
> View this message in context: 
> http://tapestry.1045711.n5.nabble.com/Informal-Parameters-considered-harmful-tp5589569p5589569.html
> Sent from the Tapestry - Dev mailing list archive at Nabble.com.
>
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-- 
Howard M. Lewis Ship

Creator of Apache Tapestry

The source for Tapestry training, mentoring and support. Contact me to
learn how I can get you up and productive in Tapestry fast!

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http://howardlewisship.com

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