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Hi all,

What is the best method to use web screens instead of 5250 screens ?
(With RPG programming, of course...)

Regards,

Jean-marc DUVAL
Informatique Étude MDG
Consultant


mobile +33 (0) 6 48 30 21 09
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----- Mail original -----
| De: "Henrik Rützou" <hr@xxxxxxxxxxxx>
| À: "RPG programming on the IBM i (AS/400 and iSeries)" <rpg400-l@xxxxxxxxxxxx>
| Envoyé: Mercredi 5 Juillet 2017 15:39:57
| Objet: Re: RPG easier/harder to use than other languages?
|
| Well it all depens if one is coding for web 1.0 or web 2.0 that in the
| client uses AJAX to retreive data from the server and typical is based on
| high level widgets that provides advanced functionality and device
| scalability.
|
| On Wed, Jul 5, 2017 at 3:16 PM, Raul A Jager W <raul@xxxxxxxxxx> wrote:
|
| > Lack of options can be an advantage, if-when you have all what you need.
| >
| > Read an account number -> show a web table with the transactions is a
| > typical request and it does not require sophisticated structures.
| >
| > Show a form, read, validate, store in data base is easily done in RPG.
| > Javascrit will be the best tool to help the user to fill the form.
| >
| >
| >
| > On 07/04/2017 07:16 PM, Henrik Rützou wrote:
| >
| >> The real problem with RPG is the lack of options. If we compare RPG with
| >> javascript, RPG must be procedural while javascript may be a mix of
| >> procedural and OO code.
| >>
| >>
| >> Javascript has also much more advanced datastructures where RPG is limited
| >> to predefined arrays with fields javascript has dynamically defined arrays
| >> and objects where objects may consist of data, array’s, sub-objects or
| >> code. Besides that data structures in javascript may be redefined in new
| >> data structures as referential, shallow or deep copies of the original.
| >>
| >>
| >> And then there is the processing-model that in javascript may be either
| >> synchrone or asynchrone or a mix of both.
| >>
| >>
| >> In other words you may code javascript as you code RPG but you can’t and
| >> will never be able to code RPG like you code javascript so a javascript
| >> programmer will always see RPG as a language that lack options.
| >>
| >> On Wed, Jul 5, 2017 at 1:02 AM, Richard Schoen <
| >> Richard.Schoen@xxxxxxxxxxxxxxx> wrote:
| >>
| >> Do you have some examples of how these former disgrunted OO devs have
| >>> found OO programming to be flawed ?
| >>>
| >>> Just curious since your statement seems pretty generic.
| >>>
| >>> Regards,
| >>>
| >>> Richard Schoen
| >>> Director of Document Management
| >>> e. richard.schoen@xxxxxxxxxxxxxxx
| >>> p. 952.486.6802
| >>> w. helpsystems.com
| >>>
| >>> ------------------------------
| >>>
| >>> message: 2
| >>> date: Tue, 4 Jul 2017 01:37:25 +0000
| >>> from: Justin Taylor <JUSTIN@xxxxxxxxxxxxx>
| >>> subject: RE: RPG easier/harder to use than other languages?
| >>>
| >>> I'm seeing a number of disgruntled former OO devs these days claim that
| >>> OO
| >>> is flawed in concept. Personally I haven't done enough to have my own
| >>> opinion. I have seen some crazy designs where people try to force a
| >>> strict
| >>> "text book" OO solution over problems where that concept doesn't really
| >>> seem to fit.
| >>>
| >>>
| >>> -----Original Message-----
| >>> From: Raul A Jager W [mailto:raul@xxxxxxxxxx]
| >>> Sent: Monday, July 03, 2017 5:32 PM
| >>> To: rpg400-l@xxxxxxxxxxxx
| >>> Subject: Re: RPG easier/harder to use than other languages?
| >>>
| >>> Lots of business needs are better served by OLTP and relational database
| >>> rather than OO. Sure, for the user interface OO is great, so use
| >>> javascript
| >>> in the browser and RPG in the server. Do not use 5250. Do not use "screen
| >>> scrapers". Develop for web.
| >>>
| >>> How do you classify a language as modern or not? The OO model is quite
| >>> old. Java is showing its age to. Python is from the 80s.
| >>>
| >>> Is OO the right tool for everything? Interpreted languages require very
| >>> careful testing, and control over the input.
| >>>
| >>> When there are lots of transactions, a compiled language like RPG or
| >>> Cobol
| >>> will enable the same processor to handle easily 20 times more
| >>> transactions
| >>> than the same code in PHP. Moore law does not work anymore, the speed
| >>> has
| >>> remained at 4 GH since the last 10 years or more. It is far more
| >>> expensive
| >>> to set up 20 servers rather than the difference of cost between
| >>> developing
| >>> in PHP or RPG.
| >>>
| >>>
| >>>
| >>>
| >>>
| >>>
| >>> --
| >>> This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
| >>> mailing list
| >>> To post a message email: RPG400-L@xxxxxxxxxxxx
| >>> To subscribe, unsubscribe, or change list options,
| >>> visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
| >>> or email: RPG400-L-request@xxxxxxxxxxxx
| >>> Before posting, please take a moment to review the archives
| >>> at http://archive.midrange.com/rpg400-l.
| >>>
| >>> Please contact support@xxxxxxxxxxxx for any subscription related
| >>> questions.
| >>>
| >>> Help support midrange.com by shopping at amazon.com with our affiliate
| >>> link: http://amzn.to/2dEadiD
| >>>
| >>>
| >>
| >>
| >
| > -- Este e-mail fue enviado desde el Mail Server del diario ABC Color --
| > -- Verificado por Anti-Virus Corporativo Symantec --
| > --
| > This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
| > mailing list
| > To post a message email: RPG400-L@xxxxxxxxxxxx
| > To subscribe, unsubscribe, or change list options,
| > visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
| > or email: RPG400-L-request@xxxxxxxxxxxx
| > Before posting, please take a moment to review the archives
| > at http://archive.midrange.com/rpg400-l.
| >
| > Please contact support@xxxxxxxxxxxx for any subscription related
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| >
| > Help support midrange.com by shopping at amazon.com with our affiliate
| > link: http://amzn.to/2dEadiD
| >
|
|
|
| --
| Regards,
| Henrik Rützou
|
| http://powerEXT.com <http://powerext.com/>
| --
| This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
| mailing list
| To post a message email: RPG400-L@xxxxxxxxxxxx
| To subscribe, unsubscribe, or change list options,
| visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
| or email: RPG400-L-request@xxxxxxxxxxxx
| Before posting, please take a moment to review the archives
| at http://archive.midrange.com/rpg400-l.
|
| Please contact support@xxxxxxxxxxxx for any subscription related questions.
|
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