package bookstoreejb;import javax.ejb.*;import java.util.*;import java.rmi.*;public interface facade extends javax.ejb.EJBObject {  public Collection getAllBook() throws RemoteException;  public Object getBookByName(String bookName) throws RemoteException;  public void sendMessage(Order order) throws RemoteException;  public Collection getAllOrder() throws RemoteException;  public void deleteOrder(String orderid) throws RemoteException;}