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Java > Open Source Codes > org > continuent > sequoia > controller > virtualdatabase > protocol > AddVirtualDatabaseUser


1 /**
2  * Sequoia: Database clustering technology.
3  * Copyright (C) 2005 AmicoSoft, Inc. dba Emic Networks
4  * Contact: sequoia@continuent.org
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  *
18  * Initial developer(s): Damian Arregui.
19  * Contributor(s): ______________________.
20  */
21
22 package org.continuent.sequoia.controller.virtualdatabase.protocol;
23
24 import java.io.Serializable JavaDoc;
25 import java.sql.SQLException JavaDoc;
26
27 import org.continuent.hedera.common.Member;
28 import org.continuent.sequoia.common.exceptions.ControllerException;
29 import org.continuent.sequoia.common.users.VirtualDatabaseUser;
30 import org.continuent.sequoia.controller.virtualdatabase.DistributedVirtualDatabase;
31
32 /**
33  * This class defines a AddVirtualDatabaseUser command.
34  *
35  * @author <a HREF="mailto:Damian.Arregui@continuent.com">Damian Arregui</a>
36  * @version 1.0
37  */
38 public class AddVirtualDatabaseUser extends DistributedVirtualDatabaseMessage
39 {
40   private static final long serialVersionUID = 6636720326759143526L;
41
42   private VirtualDatabaseUser vdbUser;
43
44   /**
45    * Creates a new <code>IsValidUserForAllBackends</code> object
46    *
47    * @param vdbUser user to be added on backends.
48    */
49   public AddVirtualDatabaseUser(VirtualDatabaseUser vdbUser)
50   {
51     this.vdbUser = vdbUser;
52   }
53
54   /**
55    * @see org.continuent.sequoia.controller.virtualdatabase.protocol.DistributedVirtualDatabaseMessage#handleMessageMultiThreaded(org.continuent.sequoia.controller.virtualdatabase.DistributedVirtualDatabase,
56    * org.continuent.hedera.common.Member, java.lang.Object)
57    */
58   public Serializable JavaDoc handleMessageMultiThreaded(
59       DistributedVirtualDatabase dvdb, Member sender,
60       Object JavaDoc handleMessageSingleThreadedResult)
61   {
62     return (Serializable JavaDoc) handleMessageSingleThreadedResult;
63   }
64
65   /**
66    * @see org.continuent.sequoia.controller.virtualdatabase.protocol.DistributedVirtualDatabaseMessage#handleMessageSingleThreaded(org.continuent.sequoia.controller.virtualdatabase.DistributedVirtualDatabase,
67    * org.continuent.hedera.common.Member)
68    */
69   public Object JavaDoc handleMessageSingleThreaded(DistributedVirtualDatabase dvdb,
70       Member sender)
71   {
72     try
73     {
74       dvdb.performAddVirtualDatabaseUser(vdbUser);
75     }
76     catch (SQLException JavaDoc e)
77     {
78       return new ControllerException(e);
79     }
80     return null;
81   }
82
83 }
84
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