"MRAB" <pyt...@mrabarnett.plus.com> wrote in message
news:mailman.444.1251290454.2854.python-l...@python.org...
> An alternative is:
>
> >>> class MyClass(object):
> ... def on_message_received(self, msg):
> ... try:
> ... getattr(self, "method_%d" % msg)()
> ... except AttributeError:
> ... raise Exception("Unknown message")
> ... def method_0(self):
> ... print 'in method_0'
> ... def method_1(self):
> ... print 'in method_1'
> ...
> >>> my_obj = MyClass()
> >>> my_obj.on_message_received(0)
> in method_0
> >>> my_obj.on_message_received(1)
> in method_1
> >>> my_obj.on_message_received(2)
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "<stdin>", line 6, in on_message_received
> Exception: Unknown message
I like the idea. Unfortunately my real-world situation is a little more
complex than my simple example implied.
This is a more typical example -
(EVT_GETLOGIN
,EVT_LOGOUT
,EVT_GETMENUOPT
,EVT_GOTFOCUS
,EVT_LOSTFOCUS
,EVT_BUTTONCLICKED
,EVT_CHECKBOX
...
) = xrange(28)
method_dict = {}
method_dict[EVT_GETLOGIN] = onGetLogin
method_dict[EVT_LOGOUT] = onLogout
method_dict[EVT_GETMENUOPT] = onGetMenuOpt
method_dict[EVT_GOTFOCUS] = onGotFocus
method_dict[EVT_LOSTFOCUS] = onLostFocus
method_dict[EVT_BUTTONCLICKED] = onButtonClicked
method_dict[EVT_CHECKBOX] = onCheckBox
You can probably figure out from my method names what I am doing here - the
messages are sent by a thin client (wxPython), and processed by a server.I
am anticipating some "don't do that" responses, but I like the concept, and
so far it is very fast and responsive, so I will pursue it for now.
Thanks for the input.
Frank
--
http://mail.python.org/mailman/listinfo/python-list
