ErrorCheckingAll


1   /**
2    * C-JDBC: Clustered JDBC.
3    * Copyright (C) 2002-2004 French National Institute For Research In Computer
4    * Science And Control (INRIA).
5    * Contact: c-jdbc@objectweb.org
6    * 
7    * This library is free software; you can redistribute it and/or modify it
8    * under the terms of the GNU Lesser General Public License as published by the
9    * Free Software Foundation; either version 2.1 of the License, or any later
10   * version.
11   * 
12   * This library is distributed in the hope that it will be useful, but WITHOUT
13   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14   * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
15   * for more details.
16   * 
17   * You should have received a copy of the GNU Lesser General Public License
18   * along with this library; if not, write to the Free Software Foundation,
19   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20   *
21   * Initial developer(s): Emmanuel Cecchet.
22   * Contributor(s): _______________________
23   */
24  
25  package org.objectweb.cjdbc.controller.loadbalancer.policies.errorchecking;
26  
27  import java.util.ArrayList  ;
28  
29  /**
30   * Error checking using all backends.
31   * 
32   * @author <a HREF="mailto:Emmanuel.Cecchet@inria.fr">Emmanuel Cecchet</a>
33   * @version 1.0
34   */
35  public class ErrorCheckingAll extends ErrorCheckingPolicy
36  {
37  
38    /**
39     * Creates a new <code>ErrorCheckingAll</code> instance.
40     */
41    public ErrorCheckingAll()
42    {
43      // We don't care about the number of nodes but the father's constructor
44      // needs at least 3 nodes.
45      super(ErrorCheckingPolicy.ALL, 3);
46    }
47  
48    /**
49     * @see org.objectweb.cjdbc.controller.loadbalancer.policies.errorchecking.ErrorCheckingPolicy#getBackends(ArrayList)
50     */
51    public ArrayList   getBackends(ArrayList   backends)
52      throws ErrorCheckingException
53    {
54      return backends;
55    }
56  
57    /**
58     * @see org.objectweb.cjdbc.controller.loadbalancer.policies.errorchecking.ErrorCheckingPolicy#getInformation()
59     */
60    public String   getInformation()
61    {
62      return "Error checking using all backends";
63    }
64  }
65
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