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The Repository Pattern
This browser is no longer supported. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. 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
P of EAA: Repository
Repository by Edward Hieatt and Rob Mee Mediates between the domain and data mapping layers using a collection-like interface for accessing domain objects. For a full description see P of EAA page 322 A system with a complex domain model often benefits from a layer, such as the one provided by Data Mapper (165), that isolates domain objects from details of the database access code. In such systems
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