/**
* Extending classes may define their own constructor and call this one first
*
* @param mixed $value
* @param int $flag A flag used by the `ValueType::getType()` method
*/
public function __construct($value, $flag = ValueType::MODE_STRICT)
{
$this->setReadOnlyProperties($this::$_read_only);
$this->value = $value;
$this->type = ValueType::getType($value);
}
