public interface StateMachineListener
The listener interface for receiving events fired by state machines. (An event is fired
by a state machine when its method fireEvent has been called).
The class that is interested in processing events fired by a state machine implements this interface (and the method it contains).
The listener object created from that class is then registered with a state machine sm using
the addStateMachineListener method on sm.
The following example is just an illustration of the mechanism and is not very useful.
Note that a state machine is itself a StateMachineListener so a
state machine can process events fired by other state machine. To see a more
interesting example that uses two state machines, take a look at the pie menu applet example on
SwingStates web site.
CStateMachine sm = new CStateMachine() {
public State start = new State() {
Transition selectColor = new PressOnShape() {
public void action() {
fireEvent(new VirtualEvent(""+getShape().getFillPaint()));
}
};
};
};
sm.addStateMachineListener(new StateMachineListener() {
public void eventOccured(EventObject event) {
System.out.println("The pressed shape is filled in "+((VirtualEvent)event).getName());
};
});
StateMachineEvent,
StateMachineEventAdapter| Modifier and Type | Method and Description |
|---|---|
void |
eventOccured(java.util.EventObject eventObject)
Invoked when the state machine has fired an event.
|