[Tutor] OO refactoring trial ??
chinook.nr at tds.net
Tue Jun 28 08:16:59 CEST 2005
OO refactoring trial
Following is a simple trial structure of a refactoring (top-down to OO)
learning exercise I'm doing. Whether you call it a Factory pattern, COR
pattern, or some hinze 57, I don't know what class to use till run time and
I'm trying to avoid a lengthy "if" sequence, the test sequence is important,
and to avoid code duplication I'll be using code objects in the "doit"
You've already given me many good ideas in previous threads and this is where
it got you :~) This works, but would you please tell me:
1) What you don't like about the approach
2) The implications of using this in a recursive approach (referenced from
but outside the recursive function) and if the decorators help with such.
3) Any other comments you might offer
for it in MF.__subclasses__():
if tv == 'relates to A':
print '# did A #'
if tv == 'relates to B':
print '# did B #'
mydoit = MF.findit('relates to B')
mydoit = MF.findit('relates to A')
======== Test run ==============
Python 2.4.1 (#2, Mar 31 2005, 00:05:10)
[GCC 3.3 20030304 (Apple Computer, Inc. build 1666)]
Type "help", "copyright", "credits" or "license" for more information.
>>> import ootest
# did B #
# did A #
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