Shows what's new in EF7. More infos and samples at www.softwarearchitekt.at

1. 1
Entity Framework 7:
New features and changes
Manfred Steyer
Books
Folie 2

2. 2
Contents
Entity Framework Today
Current Influences
Entity Framework Tomorrow
DEMO
Conclusion
Folie 3
ENTITY FRAMEWORK TODAY
Page  4

3. 3
EF 6.x
Folie 6
O/R-Mapper
Mature
(since 2008)
Optimized
Ecosystem
Integration
Recommended LINQ
Modes of Operation
Folie 7
• Model First
• DB First
Mapping via XML
• Code First
• Code First with Reverse Engineering
Mapping via Code

4. 4
Code First brings several advantages
Folie 8
Reverse
Engineering
Source Control
More Intuitive for
Developers
More Freedom
for Developers
Code-based
Configuration
Conventions
Migrations
DbContext
Object Model
Folie 9
ObjectContext

5. 5
CURRENT INFLUENCES
Page  10
Current Influences
Folie 11

6. 6
ENTITY FRAMEWORK
TOMORROW
Page  12
Goals
Reach
• .NET Core
• NoSQL
Tity up
• Focus: Code First
• RIP ObjectContext
Folie 13

7. 7
Non-Goals
Folie 14
• Yes, but only when it
really makes sense
API-
Changes
• NoSQL != RDBMS
Abstract
Paradigms
Migration
You have to modify existing code
 Don't do it now!
Current Version 6.x will stay

8. 8
Feature Set now
Folie 16
EF 6
EF 7
EF 6 is still the recommended version!
Feature Set in Future
Folie 17
EF 6
EF 7.x+

9. 9
Some Limitations in 7.0
 M:N-Relations
 Model it with two 1:N
 Lazy Loading
 Just TPH-Inheritance
 Complex Types
 Custom Conventions
 Mappings to Stored Procedures
 Update Model from Database
 Non-relational Providers
Some new Features
Handling of detached Entities
Improvements for Eager-Loading and Batching
Client-Evaluation and Raw SQL
Shadow State
Alternate Keys
Linux, Universal-Apps
PostgreSQL, SQLite
Folie 19

10. 10
7.0 or 6.x
Web with
.NET Core
EF 7.0
Universal
Apps
EF 7.0
Else EF 6.x
Code Frist
DEMO
Page  21

11. 11
Conclusion
 Version 7: Spring-Cleaning
 Getting rid of Legacy
 One Mode of Operation: "Code First"
 Time seems to be fitting: .NET Core
 Increasing Reach:
NoSQL, Linux, Universal-Apps (.NET Core)
 Providers for SQL Server, PostgreSQL, SQLite
 New features, like Batching or Shadow Properties
 EF 6.x is still recommended
Folie 22
manfred.steyer@SOFTWAREarchitekt.at
SOFTWAREarchitekt.at
ManfredSteyer
Contact