How should classes be arranged in a three-layer architecture?

A

Amarg02015-09-16 22:00:37

Programming

Amarg0, 2015-09-16 22:00:37

I am writing a simple program using a three-layer architecture. I do not quite understand how the data exchange between layers works.
When initializing the user layer, should a link to the bussiness layer and the data layer be passed?
And when the user-layer refers to the bussiness-layer, the link to the data-layer should be transmitted accordingly?
I would be very happy with examples.

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sim3x, 2015-09-16
@sim3x

Better add specifics to the question based on what you understand https://ru.wikipedia.org/wiki/%D0%A2%D1%80%D1%91%D...