在使用继承自Zend_Db_Table_Row_Abstract的类时，如何在Zend中连接表？

I have a class that extends Zend_Db_Table lets call it 'Users' that uses the class 'User' (inheriting from Zend_Db_Table_Row_Abstract) as its rowClass. I need it this way because User has additional methods that I use. I have a class that extends Zend_Db_Table lets