RE: New to ILE -- MIDRANGE-L

Rob, to do what you want here, it's simple - RPG IV (also called ILE) is the same as regular RPG, except that the column layout of the source record is a little different (some fields a little longer). You can writea program that looks exactly like your old RPG one. In fact, as Booth suggested, write the old-style one, then run the CVTRPGSRC command over it.

Remember that the source file record length is 112, not 92, for RPGLE.

The other stuff in ILE is not needed yet for you. All that binding and *MODULE and *SRVPGM stuff is better suited to designing larger applications with lots of shared executable code. As you go, you might keep in mind the things that you do a lot - conversions, extension calculations, business rules, etc., that you could put into a *SRVPGM and attach to anything you write.

You can still put data definitions in the C-specs, but you will eventually want to put them in D-specs. CVTRPGSRC does not do this for you. Another product, from Linoma Software, once called CVTILERPG, does a more extensive job, including converting C-spec data definitions to D-specs, and converting MOVxx ops to EVALs.

As others have probably said, ILE is not the same as RPG IV - ILE is an umbrella that covers the way languages work together, how objects can be lined together from disparate origins, in order to create a larger whole. It just happens that RPG IV was the version of RPG that entered the ILE world.

You can get some performance gains using ILE, since what you used to do with CALLs to other distinct programs can now be bound, eliminating the need for the system to figure out the address of the called program every time.

Have you seen the book "ILE Application Example"? You can see it at <http://publib.boulder.ibm.com/iseries/v5r1/ic2924/books/c4156020.pdf>. You've probably seen the "ILE Concepts" book <http://publib.boulder.ibm.com/iseries/v5r1/ic2924/books/c4156065.pdf>.

Good luck

Vern

At 07:28 PM 1/16/03 -0800, you wrote:

I have been reading the IBM online manuals. Is there some way to explain it in laymens terms?
For example. (I don't work in a perfect world). I want to write a simple Q&D program, to inspect a file that comes from the warehouse management system, PKMS. Sometimes the guys in the warehouse enter an incorrect volume amount, or a file there had bad data in it. When the shipment info comes up to EDI, I visually can see that there are some problems with the data that the customer will reject, or worse, we would be telling the customer to being 3 trucks instead of 1. (For those familiar with EDI I am referring to the 753). Anyhow, I would write a final check program to make sure that the volumes make sense to the weight of an item. This is done by looking up the weight of the style, multiplying by qty, cartons, etc...
In traditional RPG, this is a very simple program. You are reading the file that contains shipment info that will go into the EDI process. You are taking the style number and for aguments sake, chaining against a logical that has the style number as the key. When there is a problem encountered, you produce an error warning listing, but you also go ahead and correct the data as described above regarding the weight.
In ILE, how would this simple program be accomplished?
"Hall, Philip" <phall@spss.com> wrote:Rob,

> I am reading about ILE and I cannot get a handle on it.

What source(s) are you reading about ILE from ? Perhaps we could suggest other material to you.

--phil