Finally, the columnNames and columnTypes parameters are placed in a tuple (line 77). In a tuple, not only are the resource domain lookups performed together, but the Adapter Service Editor maintains a relationship between the parameter settings such that when value[n] is selected from the resource domain value list for columnNames, then value[n] is automatically selected for the corresponding columnTypes value. (Alternatively, you can make a resource domain lookup for columnTypes that depends on the corresponding value of columnNames and then determines the appropriate type in the lookup.)