I have created an Apex InterfaceFactory that the user can use to get an instance of a specified implementation of an interface. For this I use the `System.Type` class. The actual name of the class can be set in a custom setting. I wanted to be able to pass some parameters to the constructor of the dynamically instantiated class. In short; this is the code I'm talking about:

```
public static MyInterface GetMyInterfaceImplementationByClassName(String settingName){
    String implementationClassName;
    Type t;
    MyInterface implementation = null;

    //get the actual class name from the custom setting
    Interface_Implementations__c settings = Interface_Implementations__c.getInstance(settingName);

    //just make sure there actually is a className found
    if (settings != null && settings.Class__c != null) {
        implementationClassName = settings.Class__c;
        //get the type object for the class name retrieved from the custom setting
        t = Type.forName(implementationClassName);
        //this line is where my question comes in; how can I pass parameters here
        implementation = (MyInterface)t.newInstance();
    }

    return implementation;
}

```