Listener


1   /*
2    * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3    *
4    * This file is part of Resin(R) Open Source
5    *
6    * Each copy or derived work must preserve the copyright notice and this
7    * notice unmodified.
8    *
9    * Resin Open Source is free software; you can redistribute it and/or modify
10   * it under the terms of the GNU General Public License as published by
11   * the Free Software Foundation; either version 2 of the License, or
12   * (at your option) any later version.
13   *
14   * Resin Open Source is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17   * of NON-INFRINGEMENT.  See the GNU General Public License for more
18   * details.
19   *
20   * You should have received a copy of the GNU General Public License
21   * along with Resin Open Source; if not, write to the
22   *
23   *   Free Software Foundation, Inc.
24   *   59 Temple Place, Suite 330
25   *   Boston, MA 02111-1307  USA
26   *
27   * @author Scott Ferguson
28   */
29  
30  package com.caucho.amber.entity;
31  
32  /**
33   * An entity listener instance.
34   */
35  public interface Listener
36  {
37    public static final int PRE_PERSIST  = 1;
38    public static final int POST_PERSIST = 2;
39    public static final int PRE_REMOVE   = 3;
40    public static final int POST_REMOVE  = 4;
41    public static final int PRE_UPDATE   = 5;
42    public static final int POST_UPDATE  = 6;
43    public static final int POST_LOAD    = 7;
44  
45    /**
46     * Called before EntityManager.persist().
47     */
48    public void __caucho_prePersist(Object   entity);
49  
50    /**
51     * Called after the entity has been made persistent.
52     */
53    public void __caucho_postPersist(Object   entity);
54  
55    /**
56     * Called before EntityManager.remove().
57     */
58    public void __caucho_preRemove(Object   entity);
59  
60    /**
61     * Called after the entity has been made removed.
62     */
63    public void __caucho_postRemove(Object   entity);
64  
65    /**
66     * Called before database update operations.
67     */
68    public void __caucho_preUpdate(Object   entity);
69  
70    /**
71     * Called after database update operations.
72     */
73    public void __caucho_postUpdate(Object   entity);
74  
75    /**
76     * Called after an entity has been loaded into
77     * the current persistence context.
78     */
79    public void __caucho_postLoad(Object   entity);
80  
81    /**
82     * Generic callback.
83     */
84    public void __caucho_callback(int callbackIndex, Object   entity);
85  }
86
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