package apusic.myshop.inventory.ejb;import java.rmi.RemoteException;import javax.ejb.EJBObject;public interface Inventory extends EJBObject {  public String getProductId() throws RemoteException;  public int getQty() throws RemoteException;  public void setProductId(String productId) throws RemoteException;  public void setQty(int qty) throws RemoteException;  public void updateQty(int qty) throws RemoteException;}