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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: I'm facing an issue with: call to abstract procedure must be
 dispatching
Date: Tue, 8 Dec 2015 16:42:45 -0700
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Xref: news.eternal-september.org comp.lang.ada:28726
Date: 2015-12-08T16:42:45-07:00
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On 12/08/2015 04:04 PM, Serge Robyns wrote:
> 
> How do I then pass the context?  I mean, now I pass the parameter around.
> through global variables?  Also in the future I would like to have multiple
> "tasks" running, each with their "context", especially the db session.  I do
> believe these are good reasons for having a variable.

The case I was saying should be a pkg is when there's only 1. In that case, the
state is in the pkg body. Why should the rest of the code need to pass anything
around?

For multiple tasks with independent states, then clearly something needs to be
passed in. Whether that's the entire state or something that lets the pkg obtain
the correct state is a design decision.

-- 
Jeff Carter
"Your mother was a hamster and your father smelt of elderberries."
Monty Python & the Holy Grail
06