protected $_classes = [
		'entity' => 'lithium\data\entity\Record',
		'set' => 'lithium\data\collection\RecordSet',
		'relationship' => 'lithium\data\model\Relationship',
		'result' => 'lithium\data\source\database\adapter\pdo\Result',
		'schema' => 'lithium\data\Schema',
		'query' => 'lithium\data\model\Query'
	];