Sets the table type for this instance to the given type.
        
        :param      tableType | <orb.Table>

def setTableType(self, tableType):
        """
        Sets the table type for this instance to the given type.
        
        :param      tableType | <orb.Table>
        """
        if tableType == self._tableType:
            return
        
        self._initialized = False
        self._tableType = tableType
        self.setQuery(Query())