Software engineering problem

Hello,

I experimented a bit with swixml by making some basic forms. This went very 
well, but now I would like to make a more advanced form where you don't know 
in advance how many components will be needed.
I use a factory to create the different pieces (e.g. group of radio buttons, 
a combobox,...) in the form, but I don't know in advance how many of these 
pieces will be needed. Therefore I can't give a declaration of the needed 
swing components in advance, neither is it possible to hard code the needed 
event handlers for each component.

I was thinking to make a collection of possible components, adding listeners 
to them in the constructor and catching the events by looking to the (event) 
source.

Is this a good solution and, if so, how do I represent then this collection 
in my XML file, so that it is possible to find out witch component has fired 
the event?

Thanks in advance,
Greetings,
Jerre

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