1 /* This file is part of the project "Hilbert II" - http://www.qedeq.org" target="alexandria_uri">http://www.qedeq.org
2 *
3 * Copyright 2000-2014, Michael Meyling <mime@qedeq.org>.
4 *
5 * "Hilbert II" is free software; you can redistribute
6 * it and/or modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 package org.qedeq.kernel.bo.common;
17
18 import java.io.IOException;
19
20 import org.qedeq.kernel.se.config.QedeqConfig;
21
22 /**
23 * State changing methods for the kernel.
24 *
25 * @author Michael Meyling
26 */
27 public interface KernelState extends KernelServices {
28
29 /**
30 * Kernel initialisation.
31 *
32 * @param config Configuration access.
33 * @param moduleServices Various kernel services are supported here.
34 * @param basic Basic kernel properties.
35 * @throws IllegalStateException Kernel is already initialized.
36 * @throws IOException Initialization failed.
37 */
38 public void init(QedeqConfig config, Kernel moduleServices, KernelProperties basic)
39 throws IOException;
40
41 /**
42 * Start the kernel.
43 *
44 */
45 public void startup();
46
47 /**
48 * Closes the kernel.
49 */
50 public void shutdown();
51
52 }