Finding a component with a specific id

[Simon Kitching <sk...@obsidium.com>]

Hi,

 From a custom renderer I need to be able to find a component with a 
specific id.

Page:
   <o:colSelector tableId="table1" .../>

   <t:dataTable id="table1" ...>
      ..
   </t:dataTable>

 From the renderer for the o:colSelector I've tried:
   UIComponent table = facesContext.getViewRoot().findComponent(tableId);
   UIComponent table = component.findComponent(tableId);
   UIComponent table = component.findComponent(":" + tableId);
but had no luck.

The table is enclosed in a subview named "body", so the id actually gets 
output as "body:table1". I've tried all the above with that string too, 
and no luck.

Any ideas how I should locate that table component by id??
[And BTW, is it possible for a component in a naming container to have 
an id that is *not* prefixed by its NamingContainer parent's id?]


On a related note, looking at the source for UIComponent.findComponent, 
I see it calls _ComponentUtils.findComponent which is as follows.

     static UIComponent findComponent(UIComponent findBase, String id)
     {
         if (idsAreEqual(id,findBase))
         {
             return findBase;
         }

         for (Iterator it = findBase.getFacetsAndChildren();
           it.hasNext(); )
         {
             UIComponent childOrFacet = (UIComponent)it.next();
             if (!(childOrFacet instanceof NamingContainer))
             {
                 UIComponent find = findComponent(childOrFacet, id);
                 if (find != null) return find;
             }
             else if (idsAreEqual(id,childOrFacet))
             {
                 return childOrFacet;
             }
         }

         return null;
     }

What's the point of that "instanceof NamingContainer"? Why doesn't the 
search recurse into NamingContainer children of findBase?

Thanks,

Simon