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Java > Open Source Codes > org > continuent > sequoia > controller > virtualdatabase > management > EnableBackendOperation


1 /**
2  * Sequoia: Database clustering technology.
3  * Copyright (C) 2006 Continuent, Inc.
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): Emmanuel Cecchet.
19  * Contributor(s): ______________________.
20  */

21
22 package org.continuent.sequoia.controller.virtualdatabase.management;
23
24 import org.continuent.sequoia.common.exceptions.NotImplementedException;
25
26 /**
27  * This class defines an EnableBackendOperation corresponding to a backend
28  * enable command.
29  *
30  * @author <a HREF="mailto:emmanuel.cecchet@continuent.com">Emmanuel Cecchet</a>
31  * @version 1.0
32  */

33 public class EnableBackendOperation extends AbstractAdminOperation
34 {
35   private String JavaDoc backendName;
36
37   /**
38    * Creates a new <code>EnableBackendOperation</code> object
39    *
40    * @param backendName name of the backend enabled
41    */

42   public EnableBackendOperation(String JavaDoc backendName)
43   {
44     this.backendName = backendName;
45     operationStatus = STATUS_EXECUTING;
46   }
47
48   /**
49    * {@inheritDoc}
50    *
51    * @see org.continuent.sequoia.controller.virtualdatabase.management.AbstractAdminOperation#cancel()
52    */

53   public void cancel() throws NotImplementedException
54   {
55     throw new NotImplementedException(
56         "Cancel operation is not implemented for EnableOperation");
57   }
58
59   /**
60    * {@inheritDoc}
61    *
62    * @see org.continuent.sequoia.controller.virtualdatabase.management.AbstractAdminOperation#getDescription()
63    */

64   public String JavaDoc getDescription()
65   {
66     return "Enabling backend " + backendName;
67   }
68
69 }
70
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