• Subject: Re: Externalize DB/IO (was What Counts as Technically Slick?)
  • From: Douglas Handy <dhandy1@xxxxxxxxxxxxx>
  • Date: Wed, 11 Apr 2001 11:02:34 -0400

Nathan,

>Good point.  If you simply pass an array of indicators between client and
>server, there must be an "understood" mapping of array element and
>corresponding field.  

Which to me destroys (in part) the purpose for making it external in the first
place.

>I don't think I get the full meaning of John Taylor's suggestion.  The
>AttributeValue property implies that this structure might be used by field
>"getter" and "setter" methods, and other I/O methods popularized by OO
>languages, as well as for error management.  If so, whouldn't that negate
>the simplicity of OS/400 record level I/O?

As Bill Clinton would say, it depends on what the definition of "simplicity" is.
If you need to support multiple UI methods (or want to be able to), then
externalizing the DB I/O and business rules yields the most "simplicity".

With the proper get/set method wrappers, coding at the UI stage really should be
fairly simple.  But it is a paradigm shift for RPG-only programmers.

Doug
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