Re: Less RPG in our shop

[Simon Coulter <shc@xxxxxxxxxxxxxxxxx>]

On 18/03/2009, at 11:35 PM, David FOXWELL wrote:

> I would like your opinions on this subject. Am I wrong to say that  
> the RPG program should do as much of the processing as possible?

Ask yourself this: If you were using RPG and display files would you  
do the editing of dates or numeric values in the RPG or in the DDS?  
It's the same here. Separation of duties is always a good thing--let  
the presentation manager handle presenting the data according to how  
the user wants to see it. This is really just another form of MVC. Who  
is responsible for editing data? The Model, the View, or the Controller?

> The XML is not destined for use anywhere else but our own shop. We  
> are fundamentally an RPG shop with as of yet limited XSL ressources  
> ( 1 expert and ...me!) . And then why use XSL when you can choose  
> RPG for the job? Also, there's the performance question : I cannot  
> believe that XSL would be anything other than sluggish by comparison  
> to well - written RPG. On my PC, I've measured up to 7 seconds to  
> transform an XML file and so generate one letter.


XSLT does seem slow. I've not bothered determining why. Some of it  
seems to be poor coding of the transform itself but much of it seems  
to be in the XSLT engine. XSLT seems to be CPU bound rather than main  
storage bound. Solution is to get a faster PC.

Regards,
Simon Coulter.
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