Re: reduce redundant code


"MP" <NoSpam@xxxxxxxxxx> wrote in message
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"Ralph" <nt_consulting64@xxxxxxxxx> wrote in message
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"MP" <NoSpam@xxxxxxxxxx> wrote in message
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Is there any merit to the following idea?

I find myself repeating lines similar to below in many routines
the idea being I may want to process all objects of just objects who
have
certain property or whose "container" or "owner" or "child" has certain
property(ies)
snip
thanks for any comments
mark


Your actually chewing on several things at once here.
Get Fowler's book "Refactoring: Improving the Design of Existing Code".
Impossible to give a specific answer as it depends on the over-all
object
of
your design.
Hints: (???? no idea of this is useful or not. <g>)
Whenever you find yourself with a ton of parameters, think object.
If only certain objects of a specific type support something, why not it
let
the object handle it or ignore it?
"Filters" are usually only concerned with bags of stuff. Make it a
propery/method of the Bag.

-ralph

Hi Ralph,
re: your quote
"Filters" are usually only concerned with bags of stuff.

in my case the bag of stuff is the api of the external program my utils
"interact with"
that bag has lots of kinds of objects

the api presents a collection of all the objects in that file from which I
want to select

<snipped>

While I chew on your example, to see if there is anything I can offer that
is simple (and short <g>). Go purchase "Design Patterns Explained: A New
Perspective on Object-Oriented Design" by Shalloway & Trott. No CD so you
can get it cheap.

You will find a path to a solution starting on page 87. You'll still want to
read the first 86. <g>

-ralph


.

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