How do I pass a table's row node currency to a managed bean via EL?

I know: I can't, cause Frank says so! http://blogs.oracle.com/jdevotnharvest/entry/passing_parameters_to_managed_bean_method_using_el
But I'd like to hear how the professionals solve this before I come up with one of my own wacky hack job solutions.
I have a table with several row nodes. In each of these nodes, I have <af:inputText> elements which need to become read only based on a method outcome:
readOnly="#{pageFlowScope.orderCreation.hasDependentRows}"However, I don't know how to evaluate for each and every row because I can't pass in the row currency to my method via EL.
The only workaround I can think of would be to create another transient attribute which holds the result of the hasDependentRows function and then reference that from EL, but I'd rather get some input before I start tinkering in the dark.
Any ideas? Using JDev 11.1.2.1.0.
Will

http://technology.amis.nl/blog/622/how-to-call-methods-from-el-expressions-pre-jsp-20-trick-for-jsps-with-jstl

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