This is targeted for 2.2. LU> <faces-config-extension> LU> <vdl-configuration> LU> <vdl-id>facelets</vdl-id> LU> <vdl-class>xxx.yyy.zzz.MyCustomFaceletsVDLWrapper</vdl-class> LU> <vdl-global-resource-mapping> LU> <file-extension>.jspx</file-extension> LU> <vdl-resource-mapping-config> <!-- Saved on key/value map or LU> something like that --> LU> <process-as>jspx</process-as> LU> </vdl-resource-mapping-config> LU> </vdl-global-resource-mapping> LU> <vdl-global-resource-mapping> LU> <file-extension>.view.xml</file-extension> LU> <vdl-resource-mapping-config> <!-- Saved on key/value map or LU> something like that --> LU> <process-as>xml</process-as> LU> </vdl-resource-mapping-config> LU> </vdl-global-resource-mapping> LU> </vdl-configuration> LU> </faces-config-extension> LU> It is almost the same as we have before but with the following LU> differences: LU> 1. Every VDL has an id (like with RenderKit) LU> 2. There is an option to provide custom properties, that allow pass the LU> "mode". LU> 3. <vdl-global-resource-mapping> tag says "... all resources that match LU> this mapping LU> in the webapp will be processed by this VDL using these configuration LU> params ..." LU> 4. (Optional) Allow to provide a wrapper for a VDL implementation, LU> allowing to extend LU> it (maybe useful for gracelets????). LU> Did you see the relationship between all three problems? LU> - All of them require changes on LU> ViewDeclarationLanguage/ViewDeclarationLanguageFactory. LU> - Problem (1) is enough simple to solve, because it just require some code LU> relocation that already exists, LU> but it is necessary to update the spec. LU> - Problem (2) is the general case of (3), so we just need to change the LU> current patch a little bit. LU> - To make (3) and use it as expected we need (1) fixed. LU> I'm willing to contribute with this issue doing some code if necessary (I'll LU> try it to see how LU> far I can go). LU> Suggestions are welcome. LU> best regards, [1] https://javaserverfaces-spec-public.dev.java.net/issues/show_bug.cgi?id=902 -- | edward.burns(a)oracle.com | office: +1 407 458 0017 | homepage: | http://ridingthecrest.com/ | 8 work days until German Oracle User's Group Conference