[aspectj-dev] template implementation for interface

[Rice Yeh <riceyeh@xxxxxxxxx>]

Hi,
  When using aspectj as an extension to my project, I
have the following new idea to extend
the lanuage itself. I do not know whether anyone else
has raised such idea before. In this 
idea, I coin out a new keyword 'template', which is
used as a template implementation for
some interface I. See the following example for my
idea:

Step 1:
aspect IntroduceI2T introduces the interface I to the
template T. 

	public interface I {
	
		public int getX();
	}
	
	public tempalte T {
	
	}
	
	public abstract aspect IntroduceI2T {
	
		declare parents: T implements I;
		
		private int T.x;
		
		public int T.getX() {
			return this.x;
		}
		
		public void T.setX(int x) {
			this.x = x;
		}
		
	}

Step 2:
Then the aspect IntroduceI2C extends IntroduceI2T. The
aspect IntroduceI2C declares another class
C extends T. 

public aspect IntroduceI2C extends IntroduceI2T {

	declare parents: C extends T;
}

public class C {

}

Step 3:
Afer compling, the class C becomes

public class C {
	
	private int x;
	
	public int getX() {
		return this.x;
	}
	
	public void setX(int x) {
		this.x = x;
	}
} 

And the interface I is not changed.

Just an idea for discussion.

Regards,
Rice




	
		
__________________________________ 
Celebrate Yahoo!'s 10th Birthday! 
Yahoo! Netrospective: 100 Moments of the Web 
http://birthday.yahoo.com/netrospective/