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Text File | 1990-03-09 | 1.1 KB | 29 lines | [TEXT/GEOL] |
- Item 9838491 8-March-90 09:18PST
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- From: ALGER Alger, Jeff,VCA
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- To: POWERUP.DEV Power Up Software,PRT
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- cc: MACAPP.TECH$ MacApp Technical
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- Sub: Re[4]: Model/View…
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- James,
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- TPublisher inherits from TSubscriber, so if you need both, inherit from
- TPublisher. There is, I admit, some merit to combining the two and in my early
- design thoughts I had a TSubscriberPublisher. However, there is merit in
- having views and controllers be subscribers only to emphasize the discipline
- that separation of model from view and controller requires.
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- As to modifying MacApp source, that is a political and economic, and not a
- technical, issue. There are many strategies for implementation of the ideas;
- insertion of superclasses is merely the least controversial and easiest to
- administer for those outside of the MacApp team. Now, when we start talking
- about TDocument and TApplication, we find horses of varied colors.
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- Jeff Alger
- Exis
- A Technology Firm of KPMG Peat Marwick
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-