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From Andreas Hochsteger <>
Subject Re: [RT] Finishing the first phase of block design
Date Wed, 08 Oct 2003 20:00:24 GMT

Geoff Howard wrote:

> I think it's not planned now or in future to explicitly describe these 
> _in machine readable form_ (this does not preclude a document targeted 
> at humans to describe what must be done or not done).  The idea is that 
> there are so many different shades of "contracts" that they could never
> really be described explicitly.  By the way, this is almost a complete 
> quote of what Stefano said at one point.  I'm not claiming to be an 
> authority on blocks - just regurgitating what I've taken in.
> What I'm musing about though is not qualitatively describing the 
> behavior or resource, but just naming it or otherwise labeling it 
> explicitly as exposed or not exposed.  One option is to add it to the 
> block.xml but I think this would be tedious if we also require a 
> pipeline setup.
> However, Stefan Michels' proposal about declaring access modifiers on 
> sitemap elements (he was referring to components but I'm specifically 
> keying in on pipeline definitions) may be just the ticket: simple, 
> declarative and clear.  By the way, it is sort of analogous to the 
> meta-info stuff at Avalon.  The deploy process for a block may find it 
> useful to assemble and organize information on which pipeline resources 
> are publicly available, but that can be decided at implementation time.

Thanks for taking the time to answer my questions, Geoff.

> ----
> By the way, I forgot to add one more question on my list of musings:
> - Would even "internal-only" pipelines be protected as things stand now 
> in the design?
> Geoff


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