Re: The value of ILE

[Rory Hewitt <rory.hewitt@xxxxxxxxx>]

Alan,

I'd do what IBM effectively does with its API's - they pass a
data-structure and a separate field which defines the format of the
data-structure.

e.g.

CALL ORCPRIPGM
PARM 'GetBase' OPTION
PARM GetBaseStruct

or

CALL ORCPRIPGM
PARM 'GetCust' OPTION
PARM GetCustStruct

(can't remember fixed-format code layout, but you get the point)

I'm not saying that having separate procedure in a *SRVPGM isn't better (it
most certainly is!), but using a single program to perform multiple
different tasks based on the input it receives isn't as complex as you seem
to be saying - you don't need to pass multiple parameters, just a structure.

In fact, I've done this many, many times in the past, and I wouldn't call
it a disaster at all - it works extremely well, and has little to no
noticeable performance hit over calling a *SRVPGM.

Rory


On Sat, Jul 19, 2014 at 10:32 PM, Alan Campin <alan0307d@xxxxxxxxx> wrote:

> Now how do you do that with a program? The only way I know to do something
> like that would be to create a program with function number and every
> parameter passed at once and that have a switch to figure out which logic
> to call. I would call that a disaster and how many people would actually do
> it?