01: /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
02: *
03: * Licensed under the Apache License, Version 2.0 (the "License");
04: * you may not use this file except in compliance with the License.
05: * You may obtain a copy of the License at
06: *
07: * http://www.apache.org/licenses/LICENSE-2.0
08: *
09: * Unless required by applicable law or agreed to in writing, software
10: * distributed under the License is distributed on an "AS IS" BASIS,
11: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: * See the License for the specific language governing permissions and
13: * limitations under the License.
14: */
15:
16: package org.acegisecurity.providers.dao.cache;
17:
18: import org.acegisecurity.providers.dao.UserCache;
19:
20: import org.acegisecurity.userdetails.UserDetails;
21:
22: /**
23: * Does not perform any caching.
24: *
25: * @author Ben Alex
26: * @version $Id: NullUserCache.java 1496 2006-05-23 13:38:33Z benalex $
27: */
28: public class NullUserCache implements UserCache {
29: //~ Methods ========================================================================================================
30:
31: public UserDetails getUserFromCache(String username) {
32: return null;
33: }
34:
35: public void putUserInCache(UserDetails user) {
36: }
37:
38: public void removeUserFromCache(String username) {
39: }
40: }
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