Is Ef4 Ready For The Real Work

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Dennis Doomen

Technology

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

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)

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

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Is Ef4 Ready For The Real Work

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

2. 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

3. 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

4. The Domain Model

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

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

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

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

9. Code First: Querying LINQ Entity SQL Query Objects Store Query

10. Code First: Advanced Profiling 2nd Level Caching Extensibility

11. 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)

12. CTP3 vs NHibernate 2.1

13. CTP3 vs NHibernate 2.1

14. 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

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

16. 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

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