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Editorial Team
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Asked: 2026-05-21T04:19:31+00:00

I have been doing a bit of research with the repository pattern and I

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I have been doing a bit of research with the repository pattern and I have been rolling my own Interfaces for the repository.

I was wondering if there is a standard interface that I can implement that has Find methods and things like that?

And I presume I need to implement my own interface as well for thing like GetProduct, GetProducts etc?

I was also putting everything in one repository but this seems to be getting quite large, I presume I should separate them to difference repositories? I presume separate them by what they do i.e. Security, Products, Sales etc?

I do seem to remember seeing a standard type Repository interface which I think each class implements but I can’t seem to find any reference to it.

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  1. Editorial Team

    If you are by chance talking about domain-driven design repositories (which I think you must not be given the way you talk about them), the code for Steve Bohlen’s DDD presentation gives a standard repository interface. I wouldn’t say it’s used widely (i.e. is standard), but it does adhere to the DDD guidelines pretty closely (i.e. follows standards).

    If you are talking about the more general concept of a data-access layer, I would be sure not to call that a repository because of the confusion with the DDD concept, and perhaps conform to the same method names etc. of stuff like the Entity Framework’s ObjectContext class, or even just ICollection<T> or IDictionary<TKey, T> if appropriate.

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