Data processing components architecture in mobile applications
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Prepared by Vitalii MalaKhovskyi, iOS Engineer at Stanfy for speaking at Mobile Dev Day 2015 in Lviv, Ukraine. These slides will briefly tell you about 2 most used data access layer designs in mobile applications.
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Data processing components architecture in mobile applications
- 1. Data processing components architecture in mobile applications Malakhovskyi Vitalii iOS Developer @
- 2. Why?
- 4. Benefits: - you know what to do - code review - it saves your time - better code
- 5. The type of application you are building: Business Logic CRUD Active Record Data Mapper
- 7. id name surname 1 Vasya Bananoshvili 2 Evgen Lypan
- 8. Active Record Instance - create - save - delete - findBy - validate - work - firstName - lastName
- 11. Advantages: - easy to use - easy to implement
- 12. Disadvantages: - violates SRP - hard to unit test
- 13. Data Mapper
- 14. Business Object - firstName - lastName - middleName
- 16. Data Access Object or Data Mapper Data Mapper Instance Data Source Parser Application < CRUD > JSON Serializer JSON Object JSON Object Object
- 18. Database Mapper Network Mapper Mapper with strategy ? Strategy
- 19. Magic Mapper Mapper Repository Parser / Serializer Cloud Mapper Antenna Mapper Parser / Serializer Parser / Serializer
- 20. Advantages: - separation of concerns - allows easy unit testing
- 21. Disadvantages: - adds another layer of abstraction
- 23. Conclusion Data mapper better Active Record Active Record better Data mapper
- 24. “Architecture is about intent, not frameworks” - Robert C. Martin
- 25. Thank you!
- 27. 1. Martin Fowler - Presentation Domain Data Layering http://martinfowler.com/bliki/PresentationDomainDataLayering.html 2. Active Record vs. Data Mapper http://culttt.com/2014/06/18/whats-difference-active-record-data-mapper/ 3. The Clean Architecture http://blog.8thlight.com/uncle-bob/2012/08/13/the-clean-architecture.html What to read?