Who should be responsible for this?
Hi everybody I need your help. I am working on a Vehicle tracking project using Applet and Swing. I have a form named MapClient. This form contains a MapViewer object that stores and displays Map Image. And I have a Controller class named MapClientController . This class getting requests from MapViewer object like ZoomIn ZoomOut etc... and delegates to Model Objects. I refresh Vehicles locations in every 10 seconds and Controller object then send them as a List to MapViewer object and this object creates a VehicleComponent for each Vehicle domain object and and adds them itself . Here is and Example code
public class MapClientController {
private MapClient mapClient;
private Model model;
private Timer refreshTimer;
private List vehicles ;
public MapClientController(MapClient mapClient, Model model) {
this.mapClient = mapClient;
this.model = model;
}
public void init(){
refreshTimer =new Timer(10000,new ActionListener() {
public void actionPerformed(ActionEvent e) {
refreshVehicles();
}
});
refreshTimer.start();
}
private void refreshVehicles() {
vehicles =model.getVehicles();
mapClient.drawVehicles(vehicles);
}
}
//*****************************************************//
public class MapClient extends JApplet {
private MapViewer mapViewer;
public MapClient(MapViewer mapViewer) throws HeadlessException {
this.mapViewer = mapViewer;
..............etc
}
public void drawVehicles(List vehicles) {
mapViewer.drawVehicles(vehicles);
}..........etc
}
/*******************************************//
public class MapViewer extends JEditorPane {
public void drawVehicles(List vehicles) {
for (int i = 0; i < vehicles.size(); i++) {
Vehicle vehicle =(Vehicle)vehicles.get(i);
VehicleComponent vehicleComp =new VehicleComponent(vehicle);
add(vehicleComp);
}
}
}
//**************************************************//
public class VehicleComponent extends JComponent {
public VehicleComponent(Vehicle vehicle) {
............................etc
}
}
/**********************************************//
Could you help me for this situation. Who should be responsible for creating VehicleComponents and any better idea or suggets for this problem?
Message was edited by:
caltuntas
