What is the Hexagonal Architecture?
Hexagonal Architecture, also known as Ports and Adapters architecture, is a software design pattern that aims to create a clear separation between the application's core logic and external systems. This architecture was introduced by Alistair Cockburn and is designed to promote the development of flexible and maintainable software systems.
Key Components
- Core Domain: The central part of the application containing the business logic. It remains unaffected by changes in user interfaces or external services.
- Ports: Interfaces that define how external components can interact with the core domain. They act as gateways for input and output.
- Adapters: Implementations of the ports that allow external systems (like databases, web services, or user interfaces) to communicate with the core business logic.
Benefits
Hexagonal Architecture enhances testability, since the core logic can be tested independently of external influences. It also improves maintainability and scalability, as changes to external components require minimal alterations to the business logic.
Conclusion
By isolating the application core from external dependencies, Hexagonal Architecture facilitates easier integration with various platforms and technologies, allowing developers to adapt to changing requirements efficiently.