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The Repository Pattern
Context In many applications, the business logic accesses data from data stores such as databases, SharePoint lists, or Web services. Directly accessing the data can result in the following: Duplicated code A higher potential for programming errors Weak typing of the business data Difficulty in centralizing data-related policies such as caching An inability to easily test the business logic in iso
Repository
Repository Mediates between the domain and data mapping layers using a collection-like interface for accessing domain objects. A system with a complex domain model often benefits from a layer, such as the one provided by Data Mapper, that isolates domain objects from details of the database access code. In such systems it can be worthwhile to build another layer of abstraction over the mapping lay
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