VersantSimpleSCO


1   
2   /*
3    * Copyright (c) 1998 - 2005 Versant Corporation
4    * All rights reserved. This program and the accompanying materials
5    * are made available under the terms of the Eclipse Public License v1.0
6    * which accompanies this distribution, and is available at
7    * http://www.eclipse.org/legal/epl-v10.html
8    *
9    * Contributors:
10   * Versant Corporation - initial API and implementation
11   */
12  package com.versant.core.jdo.sco;
13  
14  /**
15   * A Simple SCO. Mutable Second Class Objects are required to mark  the field
16   * on the owner PC as dirty when they change.
17   * <p/>
18   * Try to implement ?VersantAdvancedSCO? rather than this. SCO's implementing
19   * ?VersantAdvancedSCO? increase performance because they can be re-used and
20   * saves lots of new instance creation.
21   * <p/>
22   * SCO's that are collections should implement ?VersantSCOCollection? for
23   * dramatic performance increases on commit and flush.
24   * <p/>
25   * SCO's that are maps should implement ?VersantSCOMap? for dramatic performance
26   * increases on commit and flush.
27   *
28   * @see VersantAdvancedSCO
29   * @see VersantSCOCollection
30   * @see VersantSCOMap
31   */
32  public interface VersantSimpleSCO extends Cloneable   {
33  
34      /**
35       * Nullifies references to the owner Object, Field and StateManager
36       */
37      void makeTransient();
38  
39      /**
40       * Make a clone. (Creates and returns a copy of this object.)
41       * <p/>
42       * Mutable Second Class Objects are required to provide a public
43       * clone method in order to allow for copying PersistenceCapable
44       * objects. In contrast to Object.clone(), this method must not throw a
45       * CloneNotSupportedException.
46       */
47      Object   clone();
48  
49  }
50

A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame

Popular Tags