public ScreenViewImpl getScreenView(Screen screen) {
ScreenViewImpl screenView = null;
if (screen != null) {
int screenId = screen.getId();
screenView = screenViewMap.get(screenId);
if (screenView == null) {
screenView = buildScreenView(screen);
if (screenView != null) {
screenViewMap.put(screenId, screenView);
}
}
}
return screenView;
}
