Please move this thread to a Java language mailing list. This discussion is not related to Struts. Thanks.
-- Martin Cooper On Thu, 2 Dec 2004 12:30:03 -0800, Dakota Jack <[EMAIL PROTECTED]> wrote: > Craig, > > I am thinking of doing a wrapper, e.g. PointComposite, which will then > not have to be updated, because it will only adapt the signatures of > the interface Point (not implement Point) but that the actual object > doing the work will be a PointImpl which will soley be a weak > reference and available only and updated internally as a Point object > through the PointHotFactory static methods. This would mean that > there would be no strong reference to a Point class external to the > PointComposite objects. Does this make sense to you? The class of > the internal Point object, i.e. inside the PointComposite would be > updated via a callback with a weak referenced listener. This may all > be way too complex. If so, then I can abandon it, but I think it > deserves a look. I think maybe it could be made simple. > > > > Jack > > On Thu, 2 Dec 2004 12:10:58 -0800, Dakota Jack <[EMAIL PROTECTED]> wrote: > > Thanks, Craig, > > > > I am going to have to look into this more, then. Interesting stuff in > > any event. > > > > Jack > > > > > > > > > > On Thu, 2 Dec 2004 12:07:28 -0800, Craig McClanahan <[EMAIL PROTECTED]> > > wrote: > > > On Thu, 2 Dec 2004 11:56:31 -0800, Dakota Jack <[EMAIL PROTECTED]> wrote: > > > > > > > Essentially, I am trying to keep a WeakReference to > > > > Point classes so that when I update the Point.class I can change the > > > > classes for all the PointImpl objects out there. > > > > > > My understanding of Java (extensive in many areas, but not necessarily > > > comprehensive here) is that this kind of replacement is *not* possible > > > at all. At best, you can create new instances of the new class and > > > then transfer the state information -- but that still doesn't clean up > > > references that other objects will have to the old instance. > > > > > > > Jack > > > > > > Craig > > > > > > > > > -- > > > > > > > > > > "You can't wake a person who is pretending to be asleep." > > > > ~Native Proverb~ > > > > "Each man is good in His sight. It is not necessary for eagles to be crows." > > > > ~Hunkesni (Sitting Bull), Hunkpapa Sioux~ > > > > -- > > "You can't wake a person who is pretending to be asleep." > > ~Native Proverb~ > > "Each man is good in His sight. It is not necessary for eagles to be crows." > > ~Hunkesni (Sitting Bull), Hunkpapa Sioux~ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
