Suppose your application needs a list of lists. I'm having trouble figuring out
how and where one persists object data--whether using a database or some other
file format for storage.
Many examples illustrate the point but, for the sake of argument, imagine a
classroom with students completing assignments. An Assignment class could
include fields for pointsEarned, pointsPossible, etc. A Student class would
include a field containing a (TObjectList descended) list of Assignment
objects. A Classroom object, in turn, would include a field containing
(TObjectList descended) list of Student objects.
Now, how does one go about saving all this in a file? It seems like a Classroom
object, when saved, would need a field made up of Student objects which, in
turn, requires a field of Assignment objects.
Can you sense my confusion? I'm used to database (or file) fields made up of
strings, integers, memos, etc. I don't understand how fields made up of object
lists would work ...
As always, thanks in advance -- Al
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