currently this is not supported OOTB due to the fact that Windsor always favours mode specific component over an open-generic.
You can get that working quite easily with an ISubDependencyResolver
though. The code below assumes you name the component for your decorator "DeadlockRetryCommandHandlerDecorator"
public class CommandHandlerResolver : ISubDependencyResolver
{
private readonly IKernel kernel;
public FooResolver(IKernel kernel)
{
this.kernel = kernel;
}
public bool CanResolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
{
return (dependency.TargetType.IsGenericType &&
dependency.TargetType.GetGenericTypeDefinition() == typeof (ICommandHandler<>)) &&
(model.Implementation.IsGenericType == false ||
model.Implementation.GetGenericTypeDefinition() != typeof (DeadlockRetryCommandHandlerDecorator<>));
}
public object Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
{
return kernel.Resolve("DeadlockRetryCommandHandlerDecorator", dependency.TargetItemType);
}
}
The recommended way of achieving scenarios like that with Windsor however is by using interceptors.