[jsr-314-open-mirror] [jsr-314-open] Expose TemplateClient api to make gracelets work with jsf 2.0

[Leonardo Uribe]

Hi

This message is on behalf of Lewis Gass.

I am writing in relation to a particular use case which reveals that the
current JSF 2.0 public API is defficient. This is in relation the open
source project Gracelets (http://gracelets.sourceforge.net/) and the new
effort to integrate JSF 2.0 with Groovy. In order for people to use Groovy
as an alternative View Langauge they need
to have access to the all the Facelets tag libraries and participate in the
Templating framework that Facelets provides. Much of this is tied to the
TagLibrary and
TemplateClient API's. Before, with JSF 1.2, there was a single Facelets
"API" and/or implementation. So integrating with it was much simpler, as is
shown by previous Gracelets
versions. With JSF 2.0, part of the Facelets library was divided into public

API and another as JSF 2.0 specific implementation.

However, basic concepts such as Templating (TemplateClient and
TemplateManager) are not considered public API, which means that a
technology such as Gracelets
must rely on a per JSF implementation integration library which is volatile
in nature. The FaceletContext class is public API, but implementations are
not required to support
third party implementations of such, and there is no standard way to access
the TagLibrary used by facelets so that third part View Languages can
harness them.

Thus this message has the purpose of requesting such parts of the old
Facelets library, namely, the TagLibrary, TemplateClient and the related
FaceletContext methods (popClient(),
pushClient(), extendClient() and applyDefinition()) to be part of the public

JSF 2.0 API, while at the same time requiring JSF 2.0 implementors to
support third party implementations
of the same classes/API's.

Respectfully,
Lewis Gass
Gracelets Coder
sestechllc at gmail.com
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