1 /*
2 * ManualUserGroupDB.java
3 *
4 * Created on May 25, 2004, 4:35 PM
5 */
6
7 package gov.bnl.gums.db;
8
9 import gov.bnl.gums.GridUser;
10
11 import java.util.*;
12
13 /** The persistance layer of a ManualUserGroup, allowing to store a set
14 * of users.
15 * <p>
16 * The persistance layer shouldn't be doing any kind of caching: it will be
17 * done by the ManualUserGroup itself.
18 *
19 * @author Gabriele Carcassi, Jay Packard
20 */
21 public interface ManualUserGroupDB {
22 /**
23 * Add member to group
24 *
25 * @param userDN
26 */
27 void addMember(GridUser userDN);
28
29 /**
30 * Remove member from group
31 *
32 * @param userDN
33 * @return true if userDN removed
34 */
35 boolean removeMember(GridUser userDN);
36
37 /**
38 * Checks to see if member in group
39 *
40 * @param user
41 * @return true if user in group
42 */
43 boolean isMemberInGroup(GridUser user);
44
45 /**
46 * Get list of members
47 *
48 * @return list of members
49 */
50 List retrieveMembers();
51 }