UISelect*** only renders in encodeEnd(FacesContext, UIComponent)
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Key: MYFACES-658
URL: http://issues.apache.org/jira/browse/MYFACES-658
Project: MyFaces
Type: Improvement
Components: Implementation
Versions: 1.1.0
Reporter: Thomas Timbul
I have written a ForEach component that is aimed to mirror jstl forEach
capabilities. It works for pretty much all nested components, but specifically
not for any SelectOne, SelectMany, ...
There are (as far as I can tell) 2 major reasons for this:
1. The renderer (HtmlMenuRendererBase) renders the menu only in its encodeEnd,
and it means that any attempt to encode children (forEach) is foiled as the
call is never delegated. Really, the menu should be encoded in the
encodeChildren method (if only for consistency).
2. and this one is linked to the above: The menu is rendered outside of the
normal cycle. By this I mean that the menu renders itself and any children.
Ideally, the menu would render only the <select></select> frame (encodeBegin
and encodeEnd) and leave the selectItem creation to a separate renderer. This
would allow me (in this case) to let my forEach renderer take care of child
creation.
Existing code can be easily reused as HtmlRendererUtils.internalRenderSelect
renders SelectItemS perfectly without the need for the containing menu to be
visible (except maybe for ID creation)
Unfortunately I do not know what impact this kind of change may have on the
rest of the lifecycle, but my guess is 'none', since only the encoding will
differ and the ForEach component (or similar flow control) would not render
visibly and does not have an ID.
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