Re: Aspect questions?

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <>
Fri, 02 Mar 2012 17:14:04 -0500
On 2/29/2012 10:11 AM, Novice wrote:

Arne Vajh?j<> wrote in

On 2/27/2012 9:04 PM, Novice wrote:

Martin Gregorie<martin@address-in-sig.invalid> wrote in

On Mon, 27 Feb 2012 05:20:48 +0000, Novice wrote:

I've really struggled with this. I have things set up a certain way
now but I'm constantly second-guessing myself and wondering if its
the best way to do things.

In that case, leave the package structure as it is unless you find
problems with it. In fact I'd go so far as to say don't subdivide it
into separate packages unless there's a really good reason for doing
so. Once you've written a few programs, particularly if most of the
classes in them require access to at least one of your common
classes it becomes a real pain to repartition them between packages
because doing so will cost significant effort to go through all your
application classes and adjusting their 'import' statements.

Most common classes tend to be quite small and you probably won't
have all that many of them: my collection has evolved over the last
10 years and stand at 21 classes which contain 5800 lines of source
including the Javadocs documentation comments, so the collection
would have to grow by at least 50% before I'd consider splitting up
that package.

I'm surprised that your common class is so small in terms of number
of classes, especially after 10 years! I would have thought you'd
have written many more by now....

I've got 40 classes in mine already and those are just the ones I
consider more-or-less finished. I've got many more in my
CommonCandidates project where I store the ones that are still just
half-baked (or less!).I'm regularly thinking of new ones to add....

You will know that you need to split when you start
spending time looking after the right class scrolling up
and down, because the list is long.

I think I would have split before 40.

I'm torn on that. I could certainly resplit them but I really don't see
much relationship between most of them. I do have a small handful that
are really just String manipulation that could go together. But most of
the rest are standalone.

I also have a few classes that are basically used to create panels in
GUIs. For instance, I have several class that will create a small panel
containing a single field (text field, text area, spinner, checkbox or
whatnot) with an optional label, but they're all independent of one
another. It's entirely possible just to use one on a given GUI without
ever having one of the others. Those don't feel related to me beyond the
fact that they are JPanels so I'm not inclined to lump them together.


may work fine.


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