protected function _setUpEntitySchema($classNames)
{
$em = $this->_getEntityManager();
$classes = array();
foreach ((array) $classNames as $className) {
if (!isset(self::$_entityTablesCreated[$className])) {
self::$_entityTablesCreated[$className] = true;
$classes[] = $em->getClassMetadata($className);
}
}
if ($classes) {
$this->_getSchemaTool()->dropSchema($classes);
$this->_getSchemaTool()->createSchema($classes);
}
}