Re: MONITOR..ON-ERROR status codes

[Jon Paris <jon.paris@xxxxxxxxxxxxxx>]

I never use anything but specific codes - and yes - I do have named constants for all of them in a standard /COPY member.

I use *ALL (or blank) at the end if there's anything meaningful I can do in may app - if not I only code the specifics and don't use a *ALL. That way standard RPG error handling takes over - the PSSR kicks in or whatever.


On 2013-06-21, at 5:54 PM, John Yeung <gallium.arsenide@xxxxxxxxx> wrote:

> On another thread, the use of MONITOR was brought up.  I'll admit I
> haven't used it myself, and I don't think I've ever seen it in our
> code base.  My question to those who do have experience with it is:
> How often do you find you need to catch a numeric status code, rather
> than *PROGRAM, *FILE, or *ALL?
>
> The reason I ask is that in languages like Java and Python, it is
> encouraged to catch as specific an exception as is appropriate, so
> that you don't inadvertently mask errors that really *should* halt
> your program (or bubble up to the caller).  But those languages have
> somewhat self-documenting class names to use, so I've found their
> exception-handling code fairly readable.
>
> Are *PROGRAM and *FILE sufficiently specific in real-world RPG code?
> If not, is the standard practice to give meaningful names to the
> status code literals in the D-specs (as I've seen recommended for
> indicators and indeed for most literals of any kind)?
>
> John
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Jon Paris

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