Cast

Service can be casted to more specific form.

// Create service
IService service = Services.Create(new ConverterHandlers(), CachePolicies.Default);
// Cast service
IService<ConverterFunctionRequest, Delegate> serviceT = service.Cast<ConverterFunctionRequest, Delegate>();

And back to more generic.

// Cast service
IService service = serviceT.Cast();

When using IService<Request, Response> caller doesn't need generics parameters.

// Issue request
Delegate? converter = serviceT.Get(request);

But with uncasted IService caller must specify generic parameters.

// Issue request
Delegate? converter = service.Get<ConverterFunctionRequest, Delegate>(request);

Cast can be towards with lower specifity.

// Issue request
object converter = service.GetRequired<object, object>(request);

And towards higher.

// Issue request
Func<DateTime, string> converter = service.GetRequired<ConverterFunctionRequest, Func<DateTime, string>>(request);

Full Example

Full example

using System;
using System.Linq;
using Avalanche.Converter;
using Avalanche.Service;

public class service_cast
{
    public static void Run()
    {
        {
            // <10>
            // Create service
            IService service = Services.Create(new ConverterHandlers(), CachePolicies.Default);
            // Cast service
            IService<ConverterFunctionRequest, Delegate> serviceT = service.Cast<ConverterFunctionRequest, Delegate>();
            // </10>
        }
        {
            // Create service
            IService<ConverterFunctionRequest, Delegate> serviceT = Services.Create<ConverterFunctionRequest, Delegate>(new ConverterHandlers(), CachePolicies.Default);
            // <11>
            // Cast service
            IService service = serviceT.Cast();
            // </11>
        }
        {
            // Create service
            IService service = Services.Create(new ConverterHandlers(), CachePolicies.Default);
            // Create service
            IService<ConverterFunctionRequest, Delegate> serviceT = service.Cast<ConverterFunctionRequest, Delegate>();

            // Create request
            ConverterFunctionRequest request = new ConverterFunctionRequest(typeof(DateTime), typeof(String));

            {
                // <12a>
                // Issue request
                Delegate? converter = serviceT.Get(request);
                // </12a>
            }
            {
                // <12b>
                // Issue request
                Delegate? converter = service.Get<ConverterFunctionRequest, Delegate>(request);
                // </12b>
            }
        }
        {
            // Create service
            IService service = Services.Create(new ConverterHandlers(), CachePolicies.Default);
            // Create request
            ConverterFunctionRequest request = new ConverterFunctionRequest(typeof(DateTime), typeof(String));
            {
                // <13a>
                // Issue request
                object converter = service.GetRequired<object, object>(request);
                // </13a>
            }
            {
                // <13b>
                // Issue request
                Func<DateTime, string> converter = service.GetRequired<ConverterFunctionRequest, Func<DateTime, string>>(request);
                // </13b>
            }
        }
    }
    // <24b>
    struct WakeUpRequest { }
    // </24b>
}