2 /***************************************************************
5 * (c) 2009 Jochen Rau <jochen.rau@typoplanet.de>
8 * This script is part of the TYPO3 project. The TYPO3 project is
9 * 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.
14 * The GNU General Public License can be found at
15 * http://www.gnu.org/copyleft/gpl.html.
17 * This script is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * This copyright notice MUST APPEAR in all copies of the script!
23 ***************************************************************/
26 * A abstract Value Object. A Value Object is an object that describes some characteristic
27 * or attribute (e.g. a color) but carries no concept of identity.
33 abstract class Tx_ExtBase_DomainObject_AbstractValueObject
extends Tx_ExtBase_DomainObject_AbstractDomainObject
{
36 * Register an object's clean state, e.g. after it has been reconstituted
42 public function _memorizeCleanState() {
46 * Returns a hash map of dirty properties and $values. This is always the empty array for ValueObjects, because ValueObjects never change.
51 public function _getDirtyProperties() {
56 * Returns TRUE if the properties were modified after reconstitution. However, value objects can be never updated.
61 public function _isDirty() {