01: /*
02: * %W% %E%
03: *
04: * Copyright 1990-2006 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: package com.sun.jump.module.download;
28:
29: import com.sun.jump.module.JUMPModuleFactory;
30:
31: /**
32: * <code>JUMPDownloadModuleFactory</code> is a factory for
33: * <code>JUMPDownloadModule</code>
34: */
35: public abstract class JUMPDownloadModuleFactory extends
36: JUMPModuleFactory {
37: public static final String PROTOCOL_MIDP_OTA = "ota/midp";
38: public static final String PROTOCOL_OMA_OTA = "ota/oma";
39:
40: private static JUMPDownloadModuleFactory INSTANCE = null;
41:
42: public static JUMPDownloadModuleFactory getInstance() {
43: return INSTANCE;
44: }
45:
46: /**
47: * Creates a new instance of JUMPDownloadModuleFactory
48: */
49: protected JUMPDownloadModuleFactory() {
50: synchronized (JUMPDownloadModuleFactory.class) {
51: if (INSTANCE == null) {
52: INSTANCE = this ;
53: }
54: }
55: }
56:
57: /**
58: * Returns a <code>JUMPDownloadModule</code> for the protocol specified.
59: *
60: * @param protocol the download protocol. The supported values are
61: * <ul>
62: * <li>{@link #PROTOCOL_MIDP_OTA}</li>
63: * <li>{@link #PROTOCOL_OMA_OTA}</li>
64: * </ul>
65: * @throws java.lang.IllegalArgumentException if the protocol is not
66: * not supported by the factory.
67: */
68: public abstract JUMPDownloadModule getModule(String protocol);
69: }
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