On Aug 25, 2006, at 12:55 PM, Walter Purvis wrote:
I really have not been following this thread very closely,
but has anyone considered Shared Methods? Instead of making
an object factory, why not make the object itself be
responsible for creating an instance of it's type?
Something like:
[Shared] Function Instance() As MyClass
Return New MyClass
End Function
That makes sense. What would be good is to have an interface, call it
InstanceFromClassName, with two methods, Instance (as decribed
above) and
ClassName (as described earlier in thread -- it simply returns the
name of
the class).
Then any class you want to be instantiable (that's probably not a
word) just
has to implement that interface and it can be registered with the
factory
(which presumably would store the registered
InstanceFromClassName-implementing objects, i.e., the mini-
factories, in a
dictionary), using a Register(instance as InstanceFromClassName)
method.
This would work if we had first-class classes. But we don't, and
right now, you can't treat a class as an object in this way. The
shared methods and properties make a class *almost* exactly like a
module at the moment.
Guyren G Howe
Relevant Logic LLC
guyren-at-relevantlogic.com ~ http://relevantlogic.com
REALbasic, PHP, Python programming
PostgreSQL, MySQL database design and consulting
Technical writing and training
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