2 * Copyright (C) 2015 Roland Haeder
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (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 General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 package org.mxchange.jcore.client;
19 import org.mxchange.jcore.FrameworkInterface;
22 * An interface for application clients
24 * @author Roland Haeder
26 public interface Client extends FrameworkInterface {
29 * Shuts down the client and therefore whole application
31 public void doShutdown ();
34 * Displays a message to the user
36 * @param message Message to show to the user
38 public void outputMessage (final String message);
41 * Enables isRunning attribute which singals that the client is running
43 public void enableIsRunning ();
46 * Determines whether the client is still active by checking some conditions
48 * @return Whether the client is still active
50 public boolean isRunning ();
53 * Shows introduction to user
55 public void showWelcome ();
58 * Inizializes this client