Re: How to prototype CL modules

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

Hello David,

You wrote:
>I agree that programmers have a responsibility to ensure that their programs 
>function 
>properly, but what is the advantage in forcing every programmer to know every 
>API 
>interface intimately? 

That's not what I said as you'll see when you receive my later not to Barbara.  
QUOTE " 
It is a little different if you are providing wrappers for the functions."

>Productivity for programmers at all levels can be greatly enhanced when 
>black-box style 
>reuse is employed. I create a high level interface for any API that we are 
>going to use 
>more than once.  During the process of creating the interface, I try to 
>simplify the use 
>of the API and ensure that parameter defaults are supplied where possible, 
>parameter 
>relationships are validated, and meaningful diagnostic messages are sent. 
>There are many 
>advantages to this, one advantage is that you have a single point of change 
>when your 
>use of an API changes.  For the send message API other potential advantages 
>include the 
>ability to default the target queue, ignore PEP's when sending by level, 
>default the 
>message file based on message ID, and send multiple messages if logging is in 
>effect. 

I do exactly the same sort of thing but the programmer writing the 'simpler 
interface' 
DOES need to know the API intimately.  The others who just use the simple 
interface 
don't.  I suspect we are more in agreement than not -- I don't argue with 
everyone, it 
just seems like it :)

Regards,
Simon Coulter.

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