Ed Leafe wrote:
On Jul 31, 2006, at 1:38 PM, Michael Babcock wrote:
Would you rather your UI look at a property on the bizobj interface
for a value, or call a bizobj function to get the value? Assume that
it's something that would only be called once or twice, not
repeatedly (as the case would be with something in a UI.refresh event).
Is there a better choice, or is this "6 of one, 1/2 dozen of another?"
The important thing is that when you create your design, you
define an interface that will not be changing and use that for all
inter-object communication. Whether it is a property or a method call
is not that important; what is important is that you don't have
objects accessing implementation details.
And by that you mean to be very interchangable and not get snagged on
the different layers from which it may be called, if I understand that
principle correctly. An example for folks not familiar with this would
be where you program something using objects on a page, then later put
them into some other container on a different level (say a page within a
pageframe). If you've designed to the interface, everything should
still function just fine instead of not being able to find the
references correctly. That's another reason why it's good to put the
code in the highest level (in this case, the custom form methods)
instead of the button.clicks. Also allows for easier re-use if you
really need it: like instantiating the form and calling it's custom
object -- that's a heck of a lot easier than instantiating the form and
having to drive down 'n' levels into the object hierarchy to some
button's click event!
Just trying to help the lurkers...correct me if wrong.
--
Thanks,
--Michael
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