StoredProcedureCall with IN OUT Parameters order in Stored Procedure

Question

Refer to the Toplink documentID:Note 224269.1 - Using IN, OUT and INOUT parameters with StoreProcedureCall. This document can be download from OracleMetaLink:
http://www.oracle.com/support/metalink/index.html
I followed the sample code in this document to write a test case for one of complicated PL/SQL codes. The test case showed wrong results for IN/OUT and OUT parameters.
At the end of the document above, I found this paragraph
" Check the ordering of the arguments to make sure that they are in the following sequence:
All 'IN' parameters, All 'OUT' parameters and then all 'INOUT' parameters.
Your stored procedure must be set up the same way, since this is how values will be passed to it. This is the way in which TopLink stored procedure calls have been designed and implemented. "
The order of our PL/SQL codes is IN, IN/OUT and OUT. We are not allowed to change our PL/SQL codes because they are currently used in production environment. We do not want to create another versions of PL/SQL codes to comply with IN, OUT, IN/OUT parameter order mentioned above.
Do you have any work around solution?
Dennis Nguyen
LA County Sheriff IT

Answer 1

I tried a simple example using named parameters and it worked in 9.0.4:
CREATE OR REPLACE PROCEDURE
"TEST_904"."STOREDPROCEDURE_INOUT_OUT_IN" (
     P_INOUT IN OUT NUMBER,
     P_OUT OUT NUMBER,
     P_IN NUMBER) AS
BEGIN
P_OUT := P_INOUT;
P_INOUT := P_IN;
END;
public void storedProcedureOutInoutInTest() {
     System.out.println("storedProcedureOutInoutInTest");
    StoredProcedureCall call = new StoredProcedureCall();
    call.setProcedureName("STOREDPROCEDURE_INOUT_OUT_IN");
    call.addNamedArgument("P_IN");
    call.addNamedOutputArgument("P_OUT", "P_OUT", Integer.class);
    call.addNamedInOutputArgument("P_INOUT", "P_INOUT", "P_INOUT", Integer.class);
    call.setUsesBinding(true);
    DataReadQuery query = new DataReadQuery();
    query.setCall(call);
    query.addArgument("P_IN");
    query.addArgument("P_INOUT");
    Vector args = new Vector(2);
    args.add(new Integer(1));
    args.add(new Integer(2));
    Object result =  session.executeQuery(query, args);
    Map map = (Map)((Vector)result).firstElement();
    Integer result_p_inout = (Integer)map.get("P_INOUT");
    Integer result_p_out = (Integer)map.get("P_OUT");
     System.out.println("P_INOUT = " +  result_p_inout);
     System.out.println("P_OUT = " +  result_p_out);
}Result:
P_INOUT = 1
P_OUT = 2