Entity Framework 7: What's New?

Dec 2, 2015Download as PPTX, PDF3 likes1,221 views

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.

Entity Framework 7: What’s New?
Ricardo Peres
Technical Evangelist at Simplifydigital. Microsoft MVP.
@RJPeres75

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)

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!

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

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

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

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

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

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

</WEB
Thank you!
More at:
Blog: Development With A Dot
Twitter: @RJPeres75

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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)

5. </WEB Highlights

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!

7. </WEB Changes

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

9. </WEB Departures

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

14. </WEB Still expected

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

18. </WEB Maybe some other time...

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

Entity Framework 7: What's New?

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