1   /*
2    *  Copyright (c) 1998-2001, 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 1.2 2001/10/29 17:11:26 valyt Exp $
12   *
13   */
14  package gate.util.persistence;
15  
16  import gate.*;
17  import gate.creole.*;
18  import gate.util.*;
19  import gate.persist.PersistenceException;
20  
21  import java.util.*;
22  /**
23   * Persistence handler for {@link SerialAnalyserController}.
24   * Adds handling of the corpus memeber to the {@link ControllerPersistence}
25   * class
26   */
27  
28  public class SerialAnalyserControllerPersistence extends ControllerPersistence {
29    /**
30     * Populates this Persistence with the data that needs to be stored from the
31     * original source object.
32     */
33    public void extractDataFromSource(Object source)throws PersistenceException{
34      if(! (source instanceof SerialAnalyserController)){
35        throw new UnsupportedOperationException(
36                  getClass().getName() + " can only be used for " +
37                  SerialAnalyserController.class.getName() +
38                  " objects!\n" + source.getClass().getName() +
39                  " is not a " + SerialAnalyserController.class.getName());
40      }
41  
42      super.extractDataFromSource(source);
43  
44      SerialAnalyserController sac = (SerialAnalyserController)source;
45      corpus = PersistenceManager.getPersistentRepresentation(sac.getCorpus());
46    }
47  
48    /**
49     * Creates a new object from the data contained. This new object is supposed
50     * to be a copy for the original object used as source for data extraction.
51     */
52    public Object createObject()throws PersistenceException,
53                                       ResourceInstantiationException{
54      SerialAnalyserController sac = (SerialAnalyserController)
55                                    super.createObject();
56      sac.setCorpus((Corpus)PersistenceManager.getTransientRepresentation(corpus));
57      return sac;
58    }
59    protected Object corpus;
60    static final long serialVersionUID = -4116973147963269225L;
61  }