/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * *  (C) Copyright IBM Corp. 1999 All Rights Reserved. *  Copyright 1997 The Open Group Research Institute.  All rights reserved. */ package sun.security.krb5.internal.ccache; import sun.security.krb5.*;import sun.security.krb5.internal.*;import java.io.IOException;import java.io.File; //Windows supports the "API: cache" type, which is a shared memory cache.  This is//implemented by krbcc32.dll as part of the MIT Kerberos for Win32 distribution.//MemoryCredentialsCache will provide future functions to access shared memeory cache on//Windows platform. Native code implementation may be necessary./** * This class extends CredentialsCache. It is used for accessing data in shared memory * cache on Windows platforms. * * @author Yanni Zhang */public abstract class MemoryCredentialsCache extends CredentialsCache {     private static CredentialsCache getCCacheInstance(PrincipalName p) {        return null;    }     private static CredentialsCache getCCacheInstance(PrincipalName p, File cacheFile) {        return null;    }      public abstract boolean exists(String cache);     public abstract void update(Credentials c);     public abstract void save() throws IOException, KrbException;     public abstract Credentials[] getCredsList();     public abstract Credentials getCreds(PrincipalName sname, Realm srealm) ;     public abstract PrincipalName getPrimaryPrincipal(); }