PAccessor


1   /**
2    * JORM: an implementation of a generic mapping system for persistent Java
3    *       objects. Two mapping are supported: to RDBMS and to binary files.
4    * Copyright (C) 2001-2003 France Telecom R&D - INRIA
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public
8    * License as published by the Free Software Foundation; either
9    * version 2 of the License, or (at your option) any later version.
10   *
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   *
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19   *
20   * Contact: jorm-team@objectweb.org
21   *
22   */
23  
24  package org.objectweb.jorm.api;
25  
26  /**
27   * The <b>PAccessor</b> interface defines a minimal accessor to be used by a
28   * persistent binding to access the memory instance of a persistent object.
29   * This interface is derived for each  JORM class in order to define specific
30   * accessors associated to such a definition. There are two derivation cases:
31   * <ul>
32   * <li>Through PAccessorGen with the interpreted approach.</li>
33   * <li>Through generated interfaceswith the compiled approach.</li>
34   * </ul>
35   * @author  R. Basset, P. Dechamboux
36   */
37  public interface PAccessor {
38      /**
39       * It returns the memory instance within which the persistent variables are
40       * defined.
41       * @return  The actual object containing memory persistent variables.
42       */
43      Object   getMemoryInstance();
44  }
45
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