2 * Copyright (C) 2016 Roland Haeder
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Affero General Public License as
6 * published by the Free Software Foundation, either version 3 of the
7 * License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Affero General Public License for more details.
14 * You should have received a copy of the GNU Affero General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 package org.mxchange.pizzaapplication.beans.customer;
19 import java.io.Serializable;
20 import java.util.List;
21 import org.mxchange.jcontacts.contact.Contact;
22 import org.mxchange.jcustomercore.model.customer.Customer;
25 * An interface for customer beans
27 * @author Roland Haeder<roland@mxchange.org>
29 public interface PizzaCustomerWebSessionController extends Serializable {
32 * Adds customer instance to list. The customer should be an updated
33 * instance (with id number).
35 * @param customer Customer instance
37 void addCustomer (final Customer customer);
40 * Checks whether the given contact is a customer
42 * @param contact Contact to check
44 * @return Whether the contact is a customer
46 boolean isContactFound (final Contact contact);
51 * @return A list of all customer profiles
53 List<Customer> allCustomers ();
56 * Checks whether customers are registered
58 * @return Whether customers are registered
60 boolean hasCustomers ();