[TYPO3-mvc] How to set default values for a new Model object?

[Armin Rüdiger Vieweg]

> private function createEmptyObject() {
> 	$object =  
> $this->objectManager->create('Tx_Extkey_Domain_Model_ObjectName');
> 	$object->setSomeDefaultValue($this->settings['defaults']['someDefaultValue']);
> 	return $object;
> }

If possible I would set the default values for a model in its attributes:

class Tx_Extension_Domain_Model_Person extends  
Tx_Extbase_DomainObject_AbstractEntity {
	protected $firstname = 'John';
	protected $name = 'Doe';
	// ...
}

Best Regards
Armin