[REBOL] Re: Newbie needs help with Services
From: volker::nitsch::gmail::com at: 16-Nov-2005 9:31
On 11/15/05, Kai Peters <kpeters-vu-ware.com> wrote:
> Volker ~
> I guess we have to agree to disagree then:
> For instance, your 'attempt solution' fails at
> multiple results for multiple service requests ...
> ok [time 25-Mar-2005/12:08:12-8:00]
> ok [info "Default REBOL Service"]
> fail [file/put not-allowed]
> fail [file/get not-exists]
> And no, I don't believe the fix is to break the code
> above down into 4 single requests and wrap them in attempts.
agreed. thought errors happen only with a single request, as mentioned
in the docu. with multiple results i like an error too, but each
response should be available. But how to return both? global is ugly.
> Besides, to me it's just plain wrong - or would you accept a
> SQL client library that coughed every time it received an empty
> result set from the server?
I dont like lazy errors where something goes wrong, is not handled and
plays domino-errors later.
an empty result-set in sql is no error. a missing file is. a
sql-rebservice should return an empty block then.
errors are easily catched. easier than checking a result actually.
> These things are not what I would consider
> errors to be thrown - they are plain expectable results.
> My 0.02
> Why? if i dont miss something, thats like missing files, bad data
> format etc is handled too? it throws an error, and if you dont like
> it, use attempt[read something]
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Any problem in computer science can be solved with another layer of
indirection. But that usually will create another problem.