by
Hugo Esperanca
| Dec 07, 2004
In the not so good old days of COM there wasn't an option - if we wanted a component we had to have at least one interface. The abstract server pattern was alive and kicking and the advantages of separating a service contract from its implementation were clear to all (at least to the ones using OO languages). In those days there was a clear distinction between a component (something providing services trough an interface) and a class.
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