public Resolution addItemToCart() {
if (cart.containsItemId(workingItemId)) {
cart.incrementQuantityByItemId(workingItemId);
} else {
// isInStock is a "real-time" property that must be updated
// every time an item is added to the cart, even if other
// item details are cached.
boolean isInStock = catalogService.isItemInStock(workingItemId);
Item item = catalogService.getItem(workingItemId);
cart.addItem(item, isInStock);
}
return new ForwardResolution(VIEW_CART);
}
public Resolution removeItemFromCart() {
Item item = cart.removeItemById(workingItemId);
if (item == null) {
setMessage("Attempted to remove null CartItem from Cart.");
return new ForwardResolution(ERROR);
} else {
return new ForwardResolution(VIEW_CART);
}
}