Episode 435: Julie Lerman on Object Relational Mappers and Entity Framework

EF Evolution

Entity Framework (EF) has undergone significant evolution since its inception, addressing early challenges faced by developers. Julie Lerman highlights how the initial versions of EF were tightly coupled with the database, requiring developers to write SQL to generate models. This approach has shifted with modern EF Core, allowing developers to focus on domain logic without being constrained by database design 1.

The API will let you do what you're allowed to do and it won't let you do what you're not allowed to do.

--- Julie Lerman

Despite the rise of other data storage methods, EF remains relevant, with 70% of applications still using relational databases 2.

   

EF Core Transition

The transition to Entity Framework Core marked a pivotal shift towards flexibility and cross-platform support. Julie Lerman explains that EF Core was rewritten to align with modern software practices, offering a more open API and eliminating the need for domain models to be tightly coupled with EF-specific logic 3. This shift allowed developers to write cleaner, more maintainable code without worrying about persistence-specific issues.

EF Core is not so much a dramatically different API for developers, but is rather an opportunity for them to clean up a lot of technical debt.

--- Julie Lerman

EF Core's cross-platform capabilities and open-source nature have made it the focus of ongoing development, while EF6 continues to be supported for legacy applications 4.