[aspectj-users] Modifying constructors

["Sarthak Grover" <sarthak.grover@xxxxxxxxx>]

Hello,

 

I am fairly new to AspectJ and am stuck at a point and would really appreciate your help.

 

I am trying a simple program in which I have a constructor method to create a "Car" object.

 

Example of the constructor:

 

public Car(String Type, int ModelYear)

{

my_Type = Type;

my_ModelYear = ModelYear;

}

 

 

What I am trying to do is that anytime this constructor is called, I would like to create a Car object but with different attributes instead of the original constructor:

 

public Car(String Type, String Color, int ModelYear)

{

my_Type = Type;

my_Color = Color;

my_ModelYear = ModelYear;

}

 

 

For this I createad the following pointcut and advice:

 

pointcut CarConstructor()
 : execution(Car.new(..));

 

 

around(): CarConstructor()

{

  Car(String Type, String Color, int ModelYear);

}

 

String my_Type, my_Color;

int my_ModelYear;

 

public void Car(String Type, String Color, int Model)

{

     my_Type = Type;

     my_Color = Color;

     my_ModelYear = ModelYear;

}

 

 

Should I be capturing the arguements from the original constructor and send them to the new constructor along with the exta parameter "Color" or can this be achieved with a simpler approach?

 

Thanks!

 

Sarthak