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List:       xml-cocoon-dev
Subject:    Re: [M10N] new block layout
From:       Andreas Hochsteger <e9625392 () student ! tuwien ! ac ! at>
Date:       2005-11-03 23:52:23
Message-ID: 436AA2B7.7000905 () student ! tuwien ! ac ! at
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Jorg Heymans wrote:
> Andreas Hochsteger wrote:
> 
>> If you take everything into account, both API and implementation can
>> have their own dependencies, e.g.:
>>
>> * B (API) depends on A (API)
> 
> wow, multiple APIs in one block ?

Actually I meant A through D to be blocks, where the blocks A and B just 
define APIs and blocks C and D just implement those APIs.
But of course (theoretically) it could all happen in one block too :-).

>> * C (impl of A) depends on A (API)
>> * D (impl of B) depends on B (API)
>> * D (impl of B) depends on C (impl of A)
> 
> correct, albeit theoretically. I hope we won't need this level of
> inheritance for our blocks.

I don't think that this is just theoretically but rather common practice 
(see my clarifications from above).

>> or better readable with a bit of ASCII art:
>>
>> API:  [ A ] <--- [ B ]
>>         ^          ^
>>         |          |
>> Impl: [ C ] <--- [ D ]
> 
> Nice !
> 
> Thanks for your feedback.
> 
> 
> Jorg
> 

Andreas
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