/**
* @param integer $version
* @return null
*/
public function setVersion($version)
{
if (!isset($this->loadedFields['version'])) {
$this->loadProperties();
}
$oldValue = null;
if (array_key_exists('version', $this->loadedValues)) {
$oldValue = $this->loadedValues['version'];
}
if ($oldValue === $version) {
$this->version = $version;
return;
}
return parent::setVersion($version);
}