public function loadDatabaseMapping(ItemMetaData $itemMetaData)
	{
		$databaseMapping = array();
		foreach($itemMetaData->getEntityIdentifiers() as $entityKey => $entityIdentifier)
		{
			$tableAlias = 't' . $entityKey;
			$databaseMapping[$entityIdentifier] = $this->loadEntity($entityIdentifier, $tableAlias, $itemMetaData);
		}
		return $databaseMapping;
	}