Where is the code that sets up the connected parameters?

I have a component that has a persistent property for its data. The
behavior I want is to have an optional parameter for an initial model of
that data (List). If the parameter is not used, the component creates its
own List, otherwise, it uses the one bound to it.

The problem is that I do a null check in the property accessor and create
the list (in the component) only if the property is null. For some reason,
getMyProperty in the component is being called before the expression
(getMyProperty in the wrapping component) is called, so I am never using
the bound list. I thought looking at the code would shed some light...I was
with the understanding that the very first thing that would happen before
this component rendered was it getting its parameter value from the
binding.

-C

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