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Is Ef4 Ready For The Real Work

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Dennis Doomen
Dennis Doomen
Technology
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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
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

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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
  • 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)
  • 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
  • 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