Repository pattern: Dynamic class generation

I would like to implement the repository pattern, having my domain classes being independent from my repository implementation.

but maintain my domain classes -on schema updates using EF for example- is really expe开发者_C百科nsive.

Do you know someway to automatize domain classes updates based on the ORM classes? -using T4 templates or something similar...

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Now i don't know if you are working with EF 4, but in that case Poco templates have recently been released on the Ado.Net Team Blog

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One solution is to use a tool like Automapper.