Create common factories with closures

gistfile1.php

protected function createTableFactory($tableName) {
    return function($sm) use ($tableName) {
        $tableGateway = $sm->get(ucfirst($tableName) . 'TableGateway');
        $tableClass = ucfirst($tableName) . 'Table';
        $table = new $tableClass($tableGateway);
    };
}
protected function createTableGatewayFactory($tableName) {
    return function($sm) use ($tableName) {
        $dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
        $resultSetPrototype = new ResultSet();
        $modelName = ucfirst($tableName) . 'Model';
        $resultSetPrototype->setArrayObjectPrototype(new $modelName());
        return new TableGateway($tableName, $dbAdapter, null, $resultSetPrototype);
    };
}

public function getServiceConfig()
{
    return array(
            'factories' => array(
                'Admin\Model\CountriesTable' => $this->createTableFactory('countries'),
                'CountriesTableGateway'      => $this->createTableGatewayFactory('countries'),
                'Admin\Model\StatesTable'    => $this->createTableFactory('states'),
                'StatesTableGateway'         => $this->createTableGatewayFactory('states'),
            )
        );
}