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From Joerg Heinicke <>
Subject Re: Layered software designs
Date Thu, 27 Mar 2008 04:15:08 GMT
On 26.03.2008 09:14, Reinhard Poetz wrote:

> What I want to see is a concise pipeline API that comes with only little 
> overhead in terms of its learning curve and its dependencies on 
> third-party software. Usually this means that we stick with standard 
> APIs as much as possible - and I think this rule applies for our 
> situation too.

See, one thing that I just don't get (and already asked) is how the 
pipeline API has anything to do with uri resolving. For me the latter 
(using or source resolve) is an implementation detail. Our 
current pipeline interface [1] has no relationship to uri resolving. It 
only has a reference to SourceValidity because of caching [2].

If all this discussion is about removing this method (and the related 
getKeyForEventPipeline()) to get rid of this dependency I'm ok with it. 
The caching concern could be implemented in a separate Cacheable 
interface which should then also be decoupled from uri resolving (which 
seems to point to Peter's approach [3]).



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