Name: rlT66838 Date: 03/29/2000


java version "1.2.2"
Classic VM (build 1.2.2-I, green threads, javacomp)


It would be nice, if the Java-Language would support Signal's in away, similar
to the Qt-Library (http://doc.trolltech.com/signalsandslots.html).

A signal in Java should be a method, that will not be implemented, like an
abstract method:

public signal int foo (int a);

This signal can be called in the class, whenever an special event occurs. The
signal can be assigned to any other method with the same signature:

public int bar (int a) {...}

...
connect (bar(), otherClass.foo());

Now will be executed the connected method every time the signal will be called,
until the method is disconnected to the signal.

This signal-system can be used for instance for a button ... the button class
can declare a signal isClicked(), that will be called every time the button is
clicked. I think, this is easier to use, than the ...Listener-Interfaces.
(Review ID: 103032)
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