I apologize for the newbie question, but I am not a java programmer.

I am writing my strategy and I would like to extend the methods implemented by a certain interface.

E.g.: suppose I want to declare a method 'getBarColor()' which refers to the IBar interface. Is it possible to achieve it?

At the moment I am using static methods: so I am writing something like

public static ColorType getBarColor(IBar myBar)
{ ... } (note: ColorType is an enum I defined}

and when I call it, I have to call it in a procedural way.

Would it be possible to define a public ColorType getBarColor() method which refers to IBar in order to call it, e.g., like:

lastBar.getBarColor(). It would be more natural for me.

Thank in advance for your precious help and for this great forum.

Have a nice weekend.

I partially solved the issue, defining an inner class.

Is it an efficient solution? Are there any other methods to achieve this?

Thanks again.

Hi,
It's really not a good idea to complicate your strategy with inner class that implements a single method, why not keep simple things simple:

private static ColorType getColor(IBar bar){
  return bar.getClose() > bar.getOpen() ? ColorType.GREEN : ColorType.RED;
}

is so much more readable than the inner class.

Dear Support,

Thanks for your kind response.

In fact I was also considering the proposed solution; I wondered if there were any other methods to achieve this, without using static methods. I infer that it is not.

I agree that in fact defining inner classes may be confusing (and lengthy). I have already coded that part, but I will revert to 'old' static methods in the future, then.

Thanks again.