Class ProjectionServiceCollectionExtensions

Namespace

Microsoft.Extensions.DependencyInjection

Assembly

Stratara.Projections.dll

Dependency-injection extension methods that wire the Stratara projection runtime (manager, handler, method invoker, worker, replay worker) and discover IProjection implementations by assembly scan.

public static class ProjectionServiceCollectionExtensions

Inheritance

object

ProjectionServiceCollectionExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

AddProjectionWorker(IServiceCollection, IConfiguration)

Registers the projection runtime — Stratara.Projections.Services.ProjectionManager, Stratara.Projections.Services.ProjectionHandler, Stratara.Projections.Services.ProjectionMethodInvoker, Stratara.Projections.Services.ProjectionWorker, and Stratara.Projections.Services.ProjectionReplayWorker — and binds ProjectionOptions from configuration.

public static IServiceCollection AddProjectionWorker(this IServiceCollection services, IConfiguration configuration)

Parameters

services IServiceCollection

The service collection to register against.

configuration IConfiguration

The configuration root used to bind ProjectionOptions.

Returns

IServiceCollection

The service collection for chaining.

Examples

Binds ProjectionOptions from the Projections section. Register the projections themselves separately — this call wires the runtime, not your read models:

services.AddProjectionsFromAssemblyContaining<AccountBalanceProjection>();
services.AddProjectionWorker(configuration);

AddProjectionsFromAssemblyContaining<T>(IServiceCollection)

Scans the assembly containing T and registers every concrete IProjection implementation it finds as a scoped service.

public static IServiceCollection AddProjectionsFromAssemblyContaining<T>(this IServiceCollection services)

Parameters

services IServiceCollection

The service collection to register against.

Returns

IServiceCollection

The service collection for chaining.

Type Parameters

T

A marker type that lives in the assembly to scan (typically a per-project IMarker interface).

Examples

Discover and register every IProjection in the projections assembly:

public interface IProjectionsMarker { }

builder.Services.AddProjectionsFromAssemblyContaining<IProjectionsMarker>();