| **DONOTDELETE** |
| (Unregistered) |
| 01/10/04 08:52 AM |
Good article...but...
|
Love the article (as with all the design patterns ones, it's very useful).
However, isn't the Line example just an implementation of a Factory pattern - you don't actually have an unshared flyweight object.
To be a true implementation of the flyweight pattern, shouldn't you have your existing Line class holding the intrinsic state (i.e. the colour), then a FlyweightLine class which holds the end points of the line, and a reference to the shared Line object.
This would also solve the redrawing problem mentioned by someone else if you held a list of all the FlyweightLine objects.
Cheers
Jim