I'm using an event system based on the suggestions in this question: Create Custom Event in Java
I implemented it in a component to handle and passthrough the events from a button on the component. I put the component into it's own jar file. Then I used the component and jar file in another project and when I tried to run the program I had created with it, it gave me the following error:
java.lang.IllegalAccessException: Class Eventing.EventHandler can not access a member of class outfit.proto.frmDo$1 with modifiers "public"
This is the code of the EventHandler class I wrote:
public class EventHandler<T> {
private ArrayList<T> listenerPool = new ArrayList<>();
public void addListener(T listener){
listenerPool.add(listener);
}
public void raiseEvent(Object eventData){
for (T listener : listenerPool){
try {
if (eventData != null) {
listener.getClass().getDeclaredMethods()[0].invoke(listener, eventData);
} else {
listener.getClass().getDeclaredMethods()[0].invoke(listener);
}
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
Logger.getLogger(EventHandler.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
This is how I setup the the EventHandler class on the component:
EventHandler<EventListener> _loginEvent = new EventHandler<>();
public EventHandler<EventListener> loginEvent(){
return _loginEvent;
}
loginButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
_loginEvent.raiseEvent(null);
}
});
This is what I did to catch the events on frmDo:
this.component2.loginEvent().addListener(new EventAdapter() {
@Override
public void executeResult() {
}
});
