1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.  Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle in the LICENSE file that accompanied this code.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25/*
26 *
27 *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
28 *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
29 */
30
31package sun.security.krb5.internal.ccache;
32
33import sun.security.krb5.*;
34import sun.security.krb5.internal.*;
35import java.io.IOException;
36import java.io.File;
37
38//Windows supports the "API: cache" type, which is a shared memory cache.  This is
39//implemented by krbcc32.dll as part of the MIT Kerberos for Win32 distribution.
40//MemoryCredentialsCache will provide future functions to access shared memeory cache on
41//Windows platform. Native code implementation may be necessary.
42/**
43 * This class extends CredentialsCache. It is used for accessing data in shared memory
44 * cache on Windows platforms.
45 *
46 * @author Yanni Zhang
47 */
48public abstract class MemoryCredentialsCache extends CredentialsCache {
49
50    private static CredentialsCache getCCacheInstance(PrincipalName p) {
51        return null;
52    }
53
54    private static CredentialsCache getCCacheInstance(PrincipalName p, File cacheFile) {
55        return null;
56    }
57
58
59    public abstract boolean exists(String cache);
60
61    public abstract void update(Credentials c);
62
63    public abstract void save() throws IOException, KrbException;
64
65    public abstract Credentials[] getCredsList();
66
67    public abstract Credentials getCreds(PrincipalName sname) ;
68
69    public abstract PrincipalName getPrimaryPrincipal();
70
71}
72