Basic HTML version of Foils prepared Aug 14 1997

Foil 84 JavaBean and JDK1.1 AWT Event Model

From JavaBeans CORBA ComponentWare UC Web applications Certificate -- Aug 11,14 97. by Geoffrey C. Fox, Wojtek Furmanski
1 The various listeners and events are named in pairs XListener (an interface extending java.util.EventListener) and XEvent (an object extending java.util.EventObject)
2 Registration involves methods for the source called
  • public void addXListener ( XListener callbackobject)
  • public void removeXListener ( XListener callbackobject)
  • These increment or decrement an array of listeners which the source must keep
3 Such naming conventions are part of the design pattern for the JavaBean (JDK1.1) framework
4 X = Component, Focus, Key, Mouse, MouseMotion, Window, Container, Text, Action, Adjustment and Item in JDK1.1 AWT
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