Is it possible to dynamically populate a CFC with arguments?

Answer 1

No chance!

Two ways, as you said, don't define the cfargument tags and instead look for them being passed in with StructKeyExists(ARGUMENTS, aDynamicName) or, create a code generator and write these methods to a file.

Answer 2

One way I've tried to do similar things to what you're doing is something along these lines:

<cffunction name="doSomethingWithDatabase">
<cfargument name="potentialColumns" type="string">
<cfargument name="columnValues" type="struct">

and then loop over the list of potential columns, using each element in the list as the index to search for in the columnValues struct. if that value exists in the struct, then yo'ure good; otherwise, you ignore that column in the update.

you'd then call the function something like this:

to get the columns you're looking for

alternately, you could ignore the potentialColumns argument and just get that information in your cfc:

<cffunction name="doSomethingWithDatabase">
<cfargument name="columnValues" type="struct">
<cfset potentialColumns = getMyColumns()>
.... loop....