1 /*
2 * Copyright 2009-2010 Capgemini
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * 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 net.sourceforge.statelessfilter.backend;
17
18 import java.io.Serializable;
19 import java.util.Map;
20
21 /**
22 * Interface for the session data DTO.
23 *
24 * @author Nicolas Richeton - Capgemini
25 *
26 */
27 public interface ISessionData extends Serializable {
28
29 /**
30 * Returns session attributes.
31 *
32 * @return
33 */
34 Map<String, Object> getContent();
35
36 /**
37 * Returns session creation time stamp.
38 *
39 * @return
40 */
41 long getCreationTime();
42
43 /**
44 * Returns session Id.
45 *
46 * @return
47 */
48 String getId();
49
50 // No longer used.
51 // /**
52 // * Returns request Id. Note: the request Id changes between each session
53 // and
54 // * is used to ensure that all backends restore the same session.
55 // *
56 // * @return
57 // */
58 // long getRequestId();
59
60 /**
61 * Checks if session is valid (not invalidated / not expired).
62 *
63 * @return
64 */
65 boolean isValid();
66 }