Model Building, Conventions & Initialization

Covers model construction (conventions, fluent API, metadata hierarchy) and model initialization (runtime annotation propagation, compiled model filtering).

Convention System

ConventionSet (src/EFCore/Metadata/Conventions/ConventionSet.cs) holds List<I*Convention> for every metadata event. Key conventions in src/EFCore/Metadata/Conventions/:

• DbSetFindingConvention — discovers entities from DbSet<T>
• PropertyDiscoveryConvention — discovers properties from CLR types
• KeyDiscoveryConvention — finds PKs (Id, TypeId)
• RelationshipDiscoveryConvention — infers FKs from navigations
• RuntimeModelConvention — creates optimized RuntimeModel from mutable model

Override ConfigureConventions(ModelConfigurationBuilder) to add/remove conventions.

Metadata Interface Hierarchy

IReadOnly* → IMutable* → IConvention* → IRuntime*