I've appreciated hearing both sides of the LDA debate. I agree that the LDA
would not be a good solution for the question presented in the original post,
but we have a use for it, and I'm really glad the LDA is available for our
purpose. I hope IBM continues to support it, but I also appreciate hearing
relevant warnings about it.
Joe, I read your article last night. Nice work, as usual.
-Nathan
----- Original Message ----
From: Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx>
To: RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>
Sent: Fri, February 4, 2011 7:29:47 AM
Subject: Re: Separate buisness and display logic question
Don't give up, Albert.
Despite the pundits on this thread, the LDA is just as valid as any
other tool. These days it has very limited use but that makes it no
less valid, especially as a band-aid while designing a more complete
solution. The problem with band-aids is that they sometimes tend to
stay in place a lot longer than intended, but that's the nature of the
beast.
But don't get disheartened because some folks here complain that it's
"outdated". Remember, some of these same folks advocate PHP as the
language of the future for the platform. I don't know if it's more
ironic that people push a language originally designed to help extend
Perl as "the future" or that they say to use it because Java is "too
hard". Take a look at my recent article on web languages:
http://www.mcpressonline.com/programming/web-languages/practical-web-how-hard-are-web-languages-anyway.html
You'll see that, done PROPERLY, PHP is syntactically nearly identical to
Java except with none of the productivity benefits of a strongly-typed
language. So take whatever you hear on the list with a grain of salt
and remember, properly implemented and DOCUMENTED, the right tool is the
one that best meets your business goals.
Joe
Okay, I give up.
In all honesty I don't use the LDA for new development either. It just
seemed that in the case presented it would be a reaonable choice since
the OP wanted access to data that was not being returned to his
program and seemed reluctant to change the parameters.
Albert
midrange.com
