[jsr-314-open] required attributes in composite components

Kito Mann kito.mann at VIRTUA.COM
Fri Apr 3 12:54:43 EDT 2009


Are suggesting both of those options or just one?

Sent from my iPhone

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On Apr 3, 2009, at 2:50 PM, Pete Muir <pmuir at REDHAT.COM> wrote:

> Yes, I like the idea. I was trying to think about attribute names,  
> as restrictAttributes feels wrong. How about
>
> * strict="{true|false}"
> * complete="{true|false}"
>
> On 2 Apr 2009, at 12:56, Kito Mann wrote:
>
>> So, here's one other thing that came up at JSFDays -- the fact that  
>> composite components (like Facelet compositions) don't restrict  
>> which attributes can be used. This is fine for Facelet  
>> compositions, but since composite components can define specific  
>> attributes, it makes sense to give component authors the ability to  
>> restrict page authors to those attributes.
>>
>> I think the easiest way to handle this from a component author's  
>> perspective would be to add an attribute to the  
>> <component:interface> tag:
>>
>> <component:interface restrictAttributes="true">
>>  <component:attribute name="name" required="true"/>
>>  <component:attribute name="size"/>
>> </component:interface>
>>
>> So, in this case, this component would _only_ accept the name and  
>> size attributes, and the runtime would throw an exception if  
>> another attribute were used. An IDE could also complain when  
>> someone tried to use a different attribute.
>>
>> Thoughts?
>> ---
>> Kito D. Mann -- Author, JavaServer Faces in Action
>> http://twitter.com/kito99  http://twitter.com/jsfcentral
>> http://www.virtua.com - JSF/Java EE consulting, training, and  
>> mentoring
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>>
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>>
>
> --
> Pete Muir
> http://www.seamframework.org
> http://in.relation.to/Bloggers/Pete




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