1. Entity Framework 7 Who Are You & What Have You Done to my ORM?
Julie Lerman
theDataFarm.com
@julielerman

2. My Courses on Getting Started with EF6
Domain-Driven Design Fundamentals
Looking Ahead to Entity Framework 7
EF6 Ninja Edition: What’s New in EF6
Automated Testing for Fraidy Cats Like Me
Getting Started with Entity Framework 5
Entity Framework in the Enterprise
Entity Framework Code First Migrations
Data Layer Validation with Entity Framework 4.1+
Entity Framework DbContext Data Access
Entity Framework Code First
Querying the Entity Framework
Designer Supported EDM Customization
Entity Framework and Data Models
Entity Framework 4.0 By Example

3. LET’S
CODE

4. EF
1-6
so much technical debt!

5. EF7 A complete rewrite Familiar APIs Better APIs
Not backwards compatible

6. “New Platforms, New Data Stores” Features We’ve Longed For
Object Context
EDMX

7. EF7 Won’t Require Full .NET Framework
Core CLR/DNX
Cross Plat DNX
Windows 10 UAP
&
Full
.NET
Framework
ASP.NET 5
Windows 8 Phone & Store
(not in 7.0.0)

8. Lean & Composable Just get what you need! Redis
Support for Relational providers
Redis
provider for EF7
System. Interactive.Async
EF7 Core
SQL Server provider for EF7
SQLite Provider
Azure Table Storage provider for EF7
In-Memory provider for EF7
System.Data. Common
Support for Migrations
Some NoSQL Provider
Some Other NoSQL Provider
Lean & Composable
Just get what you need!
Github Dev Branch

9. EF7 Progress & Releases Light Weight New Features EF6 Parity Non- RDMS
EF7 Future Release
EF7 for ASP.NET5
v7.0.0
EF7 Goals
Light Weight
New Features
EF6
Parity
Non-
RDMS
Light Weight
(Most)
New Features
(Some) EF6
Parity
Light Weight
New Features
EF6
Parity
Non-
RDMS
Beta8
Oct 2015
RC1
Nov 2015
EF7.0.0
ASPNet
Q1 2016
EF6
remains default
EntityFramework
EF6 Support Continues
EF7
becomes default
EntityFramework
Features best for web apps

10. EF7.Later When EF7 Becomes “The EF”
Complex Types (for Value Object support)
Explicit Loading
Richer Logging
Deeper change tracking API (e.g. Entry support for props, relationships)
Stored Procedure Mappings (for SaveChanges)
Connection Resiliency

11. Data Stores Relational Databases Non-Relational Providers
SQL Server SQLite for Device & Cross Platform Support
SQL Compact (ErikEJ)
Adding PostgreSQL (npgsql)
Data Stores
Non-Relational Providers
NoSQL (proof of concept: Azure Table Storage)
In-Memory (for integration testing w EF, not DB)
Redis Cache (proof of concept)
More . . .

12. ORM with NoSQL
WAT?

13. Entity Model DbContext API Migrations LINQ to Entities Change Tracking
Familiar APIs
Entity Model
DbContext API
Migrations
LINQ to Entities
Change Tracking
SaveChanges

14. Code Based Modeling Only DbContext API Only Simpler Metadata API
Lighter Weight API
Code Based Modeling Only
Reverse engineer database still supported
DbContext API Only
Lower level functions from ObjectContext will be in DbContext
Simpler Metadata API
Losing some edge case mapping capabilities

15. Enable Long-Requested Features
Batch CUD
Unique Constraints*
Client & Server Query Evaluation
Shadow State for Entities
In-Memory Provider for Fakes & Test Doubles
IOC Friendly
Type Conversions
Default Database Values
data.uservoice.com
Enable Long-Requested Features

16. Some Changes Fluent Relationshi ps Raw SQL
HasMany, HasOne, WithMany, WithOne
Replaced Has/With Many, Optional, Required
Raw SQL
FromSQL(xxxxxxxxxxxx)
Composable FromSQL(xxxxxxx).LinqMethod()
Runtime Database Initialization
EnsureCreated, EnsureDeleted
No More DbInitializers

17. Help for Disconnected Graphs in EF7
Apply to everything in graph
Enum parameter to affect just the root
Add Attach *Update*
Affects only the root
DbContext .Entry.State
Specify state for graph or your own behavior for graph or per node
DbContext .ChangeTracker. TrackGraph
Familiar APIs
New Behavior
New API

18. Post EF 7.0.0 Explicit Loading DbSet.Find Inheritance (see Roadmap!
github.com/aspnet/EntityFramework/wiki/Roadmap)

19. Biggest Planned Feature Cuts
EDMX Support
ObjectContext API
Entity SQL
Metadata Workspace API
Overly Complex Mappings
MEST (Multiple Entities for Single Type) Mapping
Automatic Migrations
DbInitalization

20. Resources github.com/aspnet/entityframework
github.com/aspnet/EntityFramework/wiki/Roadmap
My Pluralsight course on EF7: bit.ly/PS-EF7Alpha
January 2016 MSDN Mag Deep Dive into EF7 Migrations

21. Julie Lerman
Web: theDataFarm.com