On 8/20/05, David G. Friedman <[EMAIL PROTECTED]> wrote:
> I thought I'd read some Shale documents a while ago mentioning the purpose
> for the dollar signs in the example use cases but while speed-reading though
> various Shale documents, I'm totally missing that. Can someone point that
> out to me?
>
I'm not positive what "dollar signs" you are referring to ... but
there are two delimiters for dynamic expressions that might be of
interest:
* "${xxx}" is typically an expression in the syntax/semantics supported
by the JSP Standard Tag Library (JSTL), as well as that supported by
JSP 2.0. These expressions are evaluated as the page is rendered,
and are dynamically replaced by the result of the expression evaluation.
Shale is totally agnostic to such expressions, and does not know whether
or not they exist.
* "#{xxx}" is a JSF 1.0/1.1 expresion. At rendering time, it has identical
syntax and semantics to a corresponding "${xxx}" expression as described
above. The difference is that a "#{xxx}" expression also has meaning on the
subsequent postback caused by a form submit, when the JSP page that
originally created this view no longer exists.
Can you clarify which usage of expresion syntax you are referring to?
NOTE: One of the primary objectives of the JSF 1.2 and JSP 2.1 specs
was to resolve the semantic differences between the "${...}" and
"#{...}" expression syntaxes -- but Shale itself doesn't care anything
about this area. It's more an issue for the underlying JSP pages and
JSF components that you are using.
Craig
> Thanks,
> David
>
>
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