IBATIS ORACLE ref cursor

[Viktor_X . _Kopit]

I implemented IBATIS data mapper (2.1.7 with addition for ORACLE REF CURSOR) to get REF CURSOR data from  ORACLE stored procedure.

I have two questions:

1. How IBATIS is  closing REF CURSOR?

2. Is it possible use IBATIS to get user defined data type from ORACLE stored procedure?
In my case it is table of ORACLE objects (row in the table).
I successfully get data with this type using DAO and JDBC (no IBATIS wrapper).