Entity Framework 7: What's New?
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The document summarizes the new features of Entity Framework 7, the next version of Microsoft's Entity Framework data access API. Key points include: - EF7 is built on .NET Core and runs on multiple platforms like Windows, Linux and Mac. It supports both relational and non-relational data stores. - The codebase has been completely rewritten and uses a provider model for different data stores. It is available on GitHub and supports providers like SQL Server, SQLite, PostgreSQL, and Azure Table Storage. - Many existing features have been removed, like ObjectContext API, Entity SQL, and model-first approach. New features include support for additional platforms/providers and batching of CRUD operations.
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Entity Framework 7: What's New?
- 2. Entity Framework 7: What’s New? Ricardo Peres Technical Evangelist at Simplifydigital. Microsoft MVP. @RJPeres75
- 3. </WEB A bit of history
- 4. A bit of history V1 •.NET 3.5 SP1 •Model First / Database First V2 (4) •.NET 4 •POCOs •Lazy Loading •T4 V3 (4.1) •.NET 4 •Code First •Migrations •NuGet V4 (5) •.NET 4 •Enums •Spatial •Table-valued functions V5 (6) •.NET 4 •Interceptors •Logging •Async •Custom conventions •Stored procedures V6 (7) •.NET 4.5.1 •NoSQL •Multi platform (.NET Core)
- 6. Highlights Important stuff • Entity Framework 7 is the next version of EF – Microsoft’s Data API • Built on .NET 4.5.1+ and .NET Core • Runs on Windows Phone and Windows Store apps, Linux and Mac – wherever .NET Core is available • Supports non-relational data stores and in-memory • Scheduled for Q1 2016 – feature complete now Not recommended for production usage!
- 8. Changes What’s new • Totally rewritten code base • Provider-based: built-in providers include in-memory, SQL Server, SQLite, PostgreSQL, SQL Server Compact Edition, Redis and Azure Table Storage • Available on GitHub: https://github.com/aspnet/EntityFramework • Different Nuget packages for different providers – very modular • Some cool new features, but many won’t be available on v7.0 • Improved SQL generation
- 10. Departures Removed features • ObjectContext API • Entity-SQL – should use LINQ or SQL instead • Model-first (aka, EDMX) – use database first or code first • Database initializers – use migrations • .NET 4.x support • Automatic migrations – customize generated migrations
- 11. </WEB Newcomers
- 12. Newcomers Functionality previously unavailable • .NET Core makes it possible to run on Mac, Linux, Windows Phone, Windows Store • Provider model makes it possible to support non-relational data stores (e.g., in-memory, NoSQL) • Pluggable primary key generators (e.g., HiLo, sequence, identity, manual) • Batching of Creates, Updates and Deletes • Mixing of LINQ and SQL • Executing client-side functions in LINQ • Shadow properties – properties that do not exist in the POCO model
- 13. </WEB Demo
- 15. Still expected Will be ready when launched • Logging • Full data annotations support • Cascade deletes of orphans • Table Per Hierarchy inheritance pattern See more: https://github.com/aspnet/EntityFramework/wiki/Roadmap
- 16. </WEB Not now
- 17. Now now In the backlog for later • Lazy and eager loading • Custom conventions • Table Per Class, Table Per Concrete Class patterns • Entity/table splitting • Many:many relations without middle entity • Data seeding • Full logging • Generate model from the database • Complex types • Stored procedures support for CUDs • Connection resiliency • Interception • Azure Table Storage, Redis • Type conversions
- 19. Maybe some other time... May be available in the future • Different kinds of collections (maps, sets) • Collections of value types • Lazy properties • Formula properties • Filters
- 20. </WEB Questions?
- 21. </WEB Thank you! More at: Blog: Development With A Dot Twitter: @RJPeres75
- 23. #mswebcamp