1   /*
2    *  Copyright (c) 1998-2005, The University of Sheffield.
3    *
4    *  This file is part of GATE (see http://gate.ac.uk/), and is free
5    *  software, licenced under the GNU Library General Public License,
6    *  Version 2, June 1991 (in the distribution as file licence.html,
7    *  and also available at http://gate.ac.uk/gate/licence.html).
8    *
9    *  Valentin Tablan 29/10/2001
10   *
11   *  $Id: SerialAnalyserControllerPersistence.java,v 1.5 2005/01/11 13:51:37 ian Exp $
12   *
13   */
14  package gate.util.persistence;
15  
16  import gate.Corpus;
17  import gate.creole.ResourceInstantiationException;
18  import gate.creole.SerialAnalyserController;
19  import gate.persist.PersistenceException;
20  /**
21   * Persistence handler for {@link SerialAnalyserController}.
22   * Adds handling of the corpus memeber to the {@link ControllerPersistence}
23   * class
24   */
25  
26  public class SerialAnalyserControllerPersistence extends ControllerPersistence {
27    /**
28     * Populates this Persistence with the data that needs to be stored from the
29     * original source object.
30     */
31    public void extractDataFromSource(Object source)throws PersistenceException{
32      if(! (source instanceof SerialAnalyserController)){
33        throw new UnsupportedOperationException(
34                  getClass().getName() + " can only be used for " +
35                  SerialAnalyserController.class.getName() +
36                  " objects!\n" + source.getClass().getName() +
37                  " is not a " + SerialAnalyserController.class.getName());
38      }
39  
40      super.extractDataFromSource(source);
41  
42      SerialAnalyserController sac = (SerialAnalyserController)source;
43      corpus = PersistenceManager.getPersistentRepresentation(sac.getCorpus());
44    }
45  
46    /**
47     * Creates a new object from the data contained. This new object is supposed
48     * to be a copy for the original object used as source for data extraction.
49     */
50    public Object createObject()throws PersistenceException,
51                                       ResourceInstantiationException{
52      SerialAnalyserController sac = (SerialAnalyserController)
53                                    super.createObject();
54      sac.setCorpus((Corpus)PersistenceManager.getTransientRepresentation(corpus));
55      return sac;
56    }
57    protected Object corpus;
58    static final long serialVersionUID = -4116973147963269225L;
59  }