Define renderer method getChildren(UIComponent) instead of calling
component.getChildren directly
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Key: MYFACES-707
URL: http://issues.apache.org/jira/browse/MYFACES-707
Project: MyFaces
Type: New Feature
Components: Implementation
Reporter: Simon Kitching
Priority: Minor
Currently, org.apache.myfaces.renderkit.html.HtmlTableRenderer calls
"component.getChildren" directly from a number of methods.
I would like to see a new method "getChildren(UIComponent component)" defined
whose default behaviour is just to return "component.getChildren", and calls to
component.getChildren changed to call this new method.
This would allow me to override this new getChildren method in a subclass in
order to be able to control the order in which child components are rendered by
this component. In particular, I'm trying to extend the table renderer to allow
user-customisable column ordering. Currently I have to implement this by having
my custom renderer sort the elements in the child list of the component
directly which isn't elegant and (I'm afraid) may not beportable or robust
across releases of the library. Well it's that or duplicate every method that
makes this call (which is most of them).
Perhaps this new method could even be defined in class
org.apache.myfaces.renderkit.html so it's available for all renderers?
Probably method getChildCount(Component) would need to be defined at the same
time, just in case someone wants to write a renderer that actually hides some
child components from a parent renderer.
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