[aspectj-users] Intertype a new constructor and interface

["Wolvers, B. (Bas)" <Bas.Wolvers@xxxxxxxxxxxxx>]

Hello,

I want to add a new contructor to all classes that implements a interface,
therefore I use the code bellow:

package untitled4;
public interface Interface1{}

package untitled4;
class Untitled1
{
    public void doSomething()
    {
      System.out.println("No it's an Answer");
    }
    
    public static void main(String args[])
    {
	Untitled1 a = new Untitled1(); 
    	a.doSomething();
    }
}

package untitled4;
aspect aAspect {
  declare parents : Untitled1 implements Interface1;

  public Interface1.new(String aString)
  {
	System.out.prinln(aString);
  }
  
  pointcut doSomething() : call(* Interface1+. doSomething(..));

  before() : doSomething() 
  {
    new Untitled1("Example");
  }
}

I added some code (doSomething) to test if the new constructor is available,
but the compiler gives a warning. Why is the constructor not available on
the classes that implements Interface1? Because if I add new methods on this
way no warning is given and the methods are available. See code below:

package untitled4;
aspect aAspect {
  declare parents : Untitled1 implements Interface1;
  
  public void Interface1.aNewMethode(String aString)
  {
	System.out.println(aString);
  }

  pointcut doSomething() : call(* Interface1+.doSomething(..));

  before() : doSomething() 
  {
    new Untitled1().aNewMethode("ThisWorksFine");
  }
}

Greetings,

Bas