import edu.neu.ccs.demeter.dj.*;
public class BusRoute {
  BusRoute(MyVector buses, MyVector villages) {
    this.buses = buses;
    this.villages = villages;
  }

  public MyVector buses;
  public MyVector villages;

  // why is this in BusRoute?
  // should be in Object
  // if class graph changes: rename visitor arguments

  public int count2(ObjectGraphSlice whereToCount){
    MyVisitor countingVisitor = new MyVisitor();
    Integer result = (Integer) whereToCount.traverse(countingVisitor);
    return result.intValue();
  }

  public int count3(ObjectGraphSlice whereToCount){
    Integer result = (Integer) whereToCount.traverse(
      new Visitor() {
	int c;
	public void start() { c=0; }
	public void before(Person o) { c++;}
	public Object getReturnValue() {return new Integer(c);}
      });
    return result.intValue();
  }
    
}