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Java > Open Source Codes > org > apache > lenya > ac > GroupManager


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17
18 package org.apache.lenya.ac;
19
20 /**
21  * A group manager.
22  * @version $Id: GroupManager.java 43240 2004-08-16 16:21:22Z andreas $
23  */
24 public interface GroupManager extends ItemManager {
25     
26     /**
27      * Get all groups.
28      * @return an array of groups.
29      */
30     Group[] getGroups();
31     
32     /**
33      * Add a group to this manager.
34      * @param group the group to be added.
35      * @throws AccessControlException when the group is already contained.
36      */
37     void add(Group group) throws AccessControlException;
38     
39     /**
40      * Remove a group from this manager.
41      * @param group the group to be removed.
42      * @throws AccessControlException when the group is not contained.
43      */
44     void remove(Group group) throws AccessControlException;
45     
46     /**
47      * Get the group with the given group name.
48      *
49      * @param groupId the id of the requested group.
50      * @return a <code>Group</code> or null if there is no group with the given name
51      */
52     Group getGroup(String JavaDoc groupId);
53
54 }
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