How can an ADF Tree be configured to work with varying levels of heirarchy?

Question

We have a need for a Locations tree that represents the Locations heirarchy for any one of our clients. Depending on the client the number of levels in a location heirarchy could range from 1 to 9.
I have created 9 different tree bindings and I can change the tree binding in the jsp page - the example below is for a client with 4 location levels.
<af:tree value="#{bindings.ScdLocs4View1.treeModel}" var="node"
binding="#{backing_locations.tree2}" id="tree2">
For a client with 5 location levels, I'd like to programatically change the value to
#{bindings.ScdLocs5View1.treeModel.  How can I do this?
I was thinking I could use the setValue method on the tree control in my page's backing bean.  But I have been unable to get a reference to the tree binding.
I don't see an appropriate method for finding a Tree Binding.  There are methods for finding an Iterator Binding, an Executable Binding, or a Region Binding (whatever that is).  But how do I "find" a reference to a Tree Binding?
I have also given consideration to using a single Tree Binding with 9 levels (or rules in the Tree Binding Editor) and finding a way to  programatically "start" the rendering at a particular level (or rule) - in effect telling the ADF Tree control to ignore some number of rules and begin with the specified rule.  But I haven't been able to figure out how to do this either.
Help would be greatly appreciated.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Answer 1

Bill,
A tree binding is a particular kind of control binding, so you can find it as a control binding and then cast it to the more specific interface to work with it.