Class HandlerFactory

Namespace

Savvyio

Assembly

Savvyio.Core.dll

Provides access to factory methods for creating and configuring generic handlers that supports MEP.

public static class HandlerFactory

Inheritance

object

HandlerFactory

Examples

HandlerFactory creates the activator delegates used internally by Savvy I/O handlers to bind request types to handler methods. Use HandlerFactory.CreateFireForget<TRequest> to build fire-and-forget delegates or CreateRequestReply<TRequest, TResponse> for delegates that return a response.

using System;
using System.Threading.Tasks;
using Savvyio;
using Savvyio.Handlers;

namespace ExampleApp;

public sealed class HandlerFactoryExample
{
    public async Task DispatchAsync()
    {
        var notifications = HandlerFactory.CreateFireForget<IRequest>(
            r => r.Register<CreateOrderCommand>(cmd => Console.WriteLine("Processing: " + cmd.OrderId)));

        var command = new CreateOrderCommand("ORD-42");
        notifications.TryInvoke(command);
        await notifications.TryInvokeAsync(command).ConfigureAwait(false);
    }
}

public sealed record CreateOrderCommand(string OrderId) : Request;

Methods

CreateFireForget<TRequest>(Action<IFireForgetRegistry<TRequest>>)

Creates an instance of a Fire-and-Forget/In-Only MEP activator responsible of invoking delegates that handles TRequest.

public static IFireForgetActivator<TRequest> CreateFireForget<TRequest>(Action<IFireForgetRegistry<TRequest>> handlerRegistrar)

Parameters

handlerRegistrar Action<IFireForgetRegistry<TRequest>>

The delegate responsible for registering delegates of type TRequest.

Returns

IFireForgetActivator<TRequest>

An implementation of the IFireForgetActivator<TRequest> interface responsible of invoking delegates that handles TRequest.

Type Parameters

TRequest

The type of the model to handle.

CreateRequestReply<TRequest>(Action<IRequestReplyRegistry<TRequest>>)

Creates an instance of a Request-Reply/In-Out MEP activator responsible of invoking delegates that handles TRequest.

public static IRequestReplyActivator<TRequest> CreateRequestReply<TRequest>(Action<IRequestReplyRegistry<TRequest>> handlerRegistrar)

Parameters

handlerRegistrar Action<IRequestReplyRegistry<TRequest>>

The delegate responsible for registering delegates of type TRequest.

Returns

IRequestReplyActivator<TRequest>

An implementation of the IRequestReplyActivator<TRequest> interface responsible of invoking delegates that handles TRequest.

Type Parameters

TRequest

The type of the model to handle.