RE: How to pass Array as parameter?

[Yu, Jack]

One minor change to the sample code, I have to use inner most delegate
connection. So it is:


 public void setParameter(ParameterSetter setter, Object parameter)
throws SQLException {
                if (parameter instanceof DBArray) {
                        DBArray arr = (DBArray)parameter;
                        Statement stmt = setter.getPreparedStatement();
                        Connection conn = stmt.getConnection();
                        if (conn instanceof DelegatingConnection) {
                                DelegatingConnection dcon =
(DelegatingConnection) conn;
                                conn = dcon.getInnermostDelegate();
                        }
                        ArrayDescriptor  desc = new ArrayDescriptor
(arr.getSqlType(), conn);
                        
                        /* arr.getData's type is SQLData[] */
                        parameter = new ARRAY(desc, conn,
arr.getData());
                         
                }
                setter.setObject(parameter);
        }

-----Original Message-----
From: Yu, Jack 
Sent: Wednesday, October 03, 2007 5:11 PM
To: user-java@ibatis.apache.org
Subject: How to pass Array as parameter?

I would need to pass Array in the call, but I couldn't find out feasible
way to wrap around my objects to java.sql.Array.

In Oracle, it appears I could use "ARRAY" to create, but ARRAY object
need ArrayDescriptor which requires access to Connection object, which I
am not sure how to get in the ibatis environment.

I am trying to play around the setParameter in TypeHandlerCallback
interface, here is what I come out. It works in Oracle environment, but
I would like to get some feedback before I check in the code.

Thanks.

        public void setParameter(ParameterSetter setter, Object
parameter) throws SQLException {
                if (parameter instanceof DBArray) {
                        DBArray arr = (DBArray)parameter;
                        // convert SQLData[] to Array
                        Statement stmt = setter.getPreparedStatement();
                        Connection conn = stmt.getConnection();
                        ArrayDescriptor  desc = new ArrayDescriptor
(arr.getSqlType(), conn);
                        
                        parameter = new ARRAY(desc, conn,
arr.getData());
                         
                }
                setter.setObject(parameter);
        }