Dependency Inversion with a Persistence Adapter

Learn how to implement dependency inversion with a persistence adapter.

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Introduction

In the chapter “What’s Wrong with Layers” we talked about a traditional layered architecture and discussed how it supports “database-driven design” because, in the end, everything depends on the persistence layer. In this chapter, we’ll look at how to make the persistence layer a plugin to the application layer to invert this dependency.

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