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SOLID, the Repository Pattern, and Dependency Injection: One Complete Example, Every Principle Explained in Place

Two things get confused constantly: the Repository Pattern gets used without anyone explaining what it actually is, and Dependency Inversion (a design principle) gets treated as the same thing as…

  • Repository Pattern class interacts with data source, returns simple objects
  • Implements interface for data source interaction methods
  • Dependency Inversion Principle promotes loose coupling between components

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