Is Ef4 Ready For The Real Work

Is Entity Framework 4.0 ready for the real work?
Dennis Doomen

Contents
What’s new in EF4.0 (CTP3)
The test domain model
Scenarios for using EF
Code First in-depth
Comparison with an ORM
Conclusion

What’s new in EF4.0?
Model-first development
Automatic pluralization
Foreign keys in models
POCO class support
Lazy loading
T4 Code Generation
Template customization
IObjectSet
Virtual SaveChanges
ObjectStateManager control
Self-tracking entities
SQL generation improvements
More LINQ operator support
LINQ extensibility
ExecuteStoreQuery
ExecuteStoreCommand
SPROC import improvements
Model defined functions
WPF designer integration
Code-First development

The Domain Model

Scenarios
Model-first
Standard Generator
T4 Entity Object Generator
T4 POCO Generator
Self-Tracking Generator
Model-Once w/ edmx hacking
Code First
Manual coding

Code First: OO Support
Enums
Associations vs. .NET collection classes
Private fields / encapsulation
Inheritance

Code First: OR/M Principals
Persistency Ignorance
Transparent Persistency
Cascading inserts, updates, deletes

Code First: Mapping Support
Multi-table Mapping
Database generation
Fluent Interfaces
Conventions-based programming

Code First: Querying
LINQ
Entity SQL
Query Objects
Store Query

Code First: Advanced
Profiling
2nd Level Caching
Extensibility

Code First: Database Support
Out-of-the-boxSQL Server 2000, 2005, 2008, CE, Azure
DataDirectOracle (no client), DB2, SQL Server, Sybase, various mainframe DBs
SynergexSynergy DMS
DevArt dotConnectOracle, MySql, PostgreSql, SQLite ($99-$1499)

CTP3 vs NHibernate 2.1

So, Is it ready?
Yes...
Designers excellent for RAD
Suitable for simple domain models
Easy to learn
...But
Code First (still) too limited for DDD
Missing some important features
No Go-Live yet

Questions?
dennis.doomen@avivasolutions.nl
www.twitter.com/ddoomen
www.dennisdoomen.net

Resources
ADO.NET team blog
Julie Lerman’s blog
Alex James EF4 Tips
Tangible T4 Editor
ADO.NET Data Services Team Blog
Entity Designer Database Generation Power Pack

Is Ef4 Ready For The Real Work

by Dennis Doomen on Jan 08, 2010

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Is Ef4 Ready For The Real Work — Presentation Transcript