I'd try a type handler.
Larry
On Nov 29, 2007 5:20 AM, Giovanni Cuccu <[EMAIL PROTECTED]> wrote:
> Any comments on this?
> Thanks,
> Giovanni
>
>
> On Nov 14, 2007 3:12 PM, Giovanni Cuccu <[EMAIL PROTECTED]> wrote:
> > Hi all,
> > I'm currently using ibatis 2.3 with Oracle and I'm trying to
> > mapping some oracle datatypes. For now I'm focusing on VARRAY and with
> > the current version of IBatis I'm able to map a String[] to a VARRAY
> > type (where the basic type is varchar2) as an input param to a stored
> > procedure.
> > What I'm not able to do is to create a mapping for an output parameter.
> > The case I'm currently investigating is a pl\SQL function that returns a
> > varray.
> > the plain jdbc code is the following (take it a first experiment)
> > public class TestOracleArray {
> >
> > /**
> > * @param args
> > */
> > public static void main(String[] args) throws Exception {
> > OracleDataSource ods = new OracleDataSource();
> > String url = "jdbc:oracle:thin:@localhost:1521:orcl";
> > ods.setURL(url);
> > ods.setUser("test");
> > ods.setPassword("test");
> > Connection conn = ods.getConnection();
> > ArrayDescriptor desc =
> > ArrayDescriptor.createDescriptor("VARRAY_TEST", conn);
> > CallableStatement csOut= conn.prepareCall("{? = call
> > test_ibatis_varray_fuc}");
> > String[] elementsOUT=new String[20];
> > ARRAY arrayParamOut = new ARRAY (desc, conn, elementsOUT);
> > OracleCallableStatement ocs =
> > (OracleCallableStatement)csOut;
> > ocs.registerOutParameter(1,
> > java.sql.Types.ARRAY,"VARRAY_TEST");
> > csOut.execute();
> > arrayParamOut=(ARRAY)csOut.getArray(1);
> > elementsOUT=(String[])arrayParamOut.getArray();
> > for (int i=0;i<elementsOUT.length;i++) {
> > System.out.println(elementsOUT[i]);
> > }
> > conn.commit();
> >
> > }
> >
> > the previous code works, my guess is that iBatis does not support this
> > kind of mapping mainly because of this line:
> > ocs.registerOutParameter(1, java.sql.Types.ARRAY,"VARRAY_TEST");
> >
> > there is not callback function in typehandler able to support the
> > registration of a parameter.
> > My proposal is to create a new interface tht extends TypeHandler and
> > allows for custom parameter registration; and modify the code of
> > SqlExecutor namley the method
> > private void registerOutputParameters(CallableStatement cs,
> > ParameterMapping[] mappings) throws SQLException {
> > in order to accomodate the new feature.
> > the new interface should preserve the current typeandler
> > implementations and it will allow a new feature which is not bounded
> > to a specific database (since custom parameter registration can be
> > viewed as a generic JDBC concept).
> > does anyone agree with my proposal?
> > If yes can i open a Jira issue and try to submit some code?
> > Thanks in advance,
> > Giovanni
> >
> >
> > --
> > --------------------------------------------------------------------
> > "You don't know the power of dark side" - Darth Vader
> >
>
>
>
> --
> --------------------------------------------------------------------
> "You don't know the power of dark side" - Darth Vader
>
