View Object with User Defined Type input

Question

I am trying to use a View Object with a query that requires a user defined object as an input parameter.
I have the query working with a PreparedStatement, but would like to use a View Object.
When I use the PreparedStatement, I prepare the user defined type data like this:
// get the data into an object array
Object[] wSRecObjArr = wSRec.getObjectArray();
// set up rec descriptor
StructDescriptor WSRecDescriptor = StructDescriptor.createDescriptor("WS_REC",conn);
// populate the record struct
STRUCT wSRecStruct = new STRUCT(WSRecDescriptor,conn,wSRecObjArr);
Then I can use this in the PreparedStatement like this:
OraclePreparedStatement stat = null;
ResultSet rs = null;
stat = (OraclePreparedStatement)conn.prepareStatement("Select test_pkg.test_function(?) FROM DUAL");
stat.setSTRUCT(1, wSRecStruct);
rs = stat.executeQuery();
I would like to do the same process with a View Object instead of the PreparedStatement.
My question is "How do I create the input objects"?
I obtain the View Object from the Application Module using findViewObject(). I don't actually have a connection object to pass into the StructDescriptor.createDescriptor method.
I have tried just using Java Object Arrays (Object[]) to pass the data, but that gave an error:
oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation.
Any help or pointers are greatly appreciated.
Thank you.
Edited by: 942120 on May 1, 2013 8:45 AM
Edited by: 942120 on May 1, 2013 8:46 AM
Edited by: 942120 on May 1, 2013 9:05 AM
Edited by: 942120 on May 1, 2013 9:06 AM

Answer 1

Custom domains are the way to go.
When I try to pass custom domains that represent my user defined types - it works.
However, one of the functions requires a table of a user defined type be passed in.
I tried creating a domain of the table type. It forces me to add a field during creation (in JDEV), so I tried adding a field of type Array of Element of the domain representing the user defined type.
I populate the table by setting the field I created, but the table is empty in PL/SQL (TEST_TAB.COUNT = 0).
I also tried passing the oracle.jbo.domain.Array object, but that produced an error:
java.sql.SQLException: ORA-06553: PLS-306: wrong number or types of arguments in call
I also tried passing Object[], but that produced an error:
oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation.
How do I properly create, and pass an domain that represents a table of a user defined type?
When I use a OraclePreparedStatement, I can pass a oracle.sql.ARRAY using stat.setARRAY.
Thank you for the help you have provided, and any future advice.
JDEV 10.1.2.3
JDBC 10.2.0.5
Edited by: 942120 on May 13, 2013 7:13 AM
Edited by: 942120 on May 13, 2013 7:16 AM