Question

I am still getting started with Unity, and have what seems to be a simple question.

I have a class that has a dependency on two different instances of the same interface. How do I configure and resolve this class?

I.E. Given:

public interface ILogger
{
    void Write(string message);
}
public class ConsoleLogger : ILogger
{
    public void Write(string message) 
    {
        Console.WriteLine(message);
    }
}
public class AnotherLogger : ILogger
{
    public void Write(string message)
    {
        Console.WriteLine(DateTime.Now.ToString() + " " + message);
    }
}
public class CombinedLogger : ILogger
{
    IList<ILogger> _loggers;
    public CombinedLogger(params ILogger[] loggers)
    {
         _loggers = new List<ILogger>(loggers);
    }
    public void Write(string message)
    {
         foreach(var logger in _loggers) logger.Write(message);
    }
}

I know how to configure for ConsoleLogger, and AnotherLogger. I also know how to access them in the actual code. What I seem to be blocking on is figuring out how to configure and use CombinedLogger, passing in the instances of ConsoleLogger and AnotherLogger.

Answer 1

Read the documentation on configuration support for arrays.