package apusic.myshop.inventory.ejb;import java.util.Collection;import java.rmi.RemoteException;import javax.ejb.CreateException;import javax.ejb.FinderException;import javax.ejb.EJBHome;public interface InventoryHome extends EJBHome {  public Inventory create(String productId, int qty)    throws RemoteException, CreateException;  public Inventory findByProductId(String productId)    throws RemoteException, FinderException;  public Collection findInventories() throws RemoteException, FinderException;}