[4984] in java-interest
Re: Observable problems
daemon@ATHENA.MIT.EDU (Walter Szewelanczyk)
Thu Jan 25 02:05:04 1996
From: "Walter Szewelanczyk" <Walter@stumpy.adco.com>
To: chris@telesph.com (Christopher Helck), java-interest@java.sun.com
Date: Thu, 25 Jan 1996 00:26:18 +0000
Hi Chris,
> I'm running into problems using the Observable class and the Observer interface.
> I have a class (call it Foo) which I would like to be Observable (when a button
> is pressed I need to tell two or more observers about it). I can't make Foo
> a sub-class of Observable because Foo already is a sub-class of Panel. I can't
> have Foo use Obserable (have an Observable instance as a member of Foo) because
> Observable.setChanged() and Observable.clearChanged() are protected functions
> and can only be called by sub-classes of Observable.
I may be way out of line but could you sub class the button and make
that observable????
Walt
********************************************************************************************
Walter Szewelanczyk Technical Director
Walter@adco.com NET VENTURE, Inc.
"One must stay in a very RIGID state of FLEXABILITY"
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