Java call stored procedure with nested table type parameter?

Question

Hi experts!
I need to call stored procedure that contains nested table type parameter, but I don't know how to handle it.
The following is my pl/sql code:
create or replace package test_package as
type row_abc is record(
col1 varchar2(16),
col2 varchar2(16),
col3 varchar2(16 )
type matrix_abc is table of row_abc index by binary_integer;
PROCEDURE test_matrix(p_arg1 IN VARCHAR2,
p_arg2 IN VARCHAR2,
p_arg3 IN VARCHAR2,
p_out OUT matrix_abc
END test_package;
create or replace package body test_package as
PROCEDURE test_matrix(p_arg1 IN VARCHAR2,
p_arg2 IN VARCHAR2,
p_arg3 IN VARCHAR2,
p_out OUT matrix_abc
IS
v_sn NUMBER(8):=0 ;
BEGIN
LOOP
EXIT WHEN v_sn>5 ;
v_sn := v_sn + 1;
p_out(v_sn).col1 := 'col1_'||to_char(v_sn)|| p_arg1 ;
p_out(v_sn).col2 := 'col2_'||to_char(v_sn)||p_arg2 ;
p_out(v_sn).col3 := 'col3_'||to_char(v_sn)||p_arg3 ;
END LOOP ;
END ;
END test_package ;
My java code is following, it doesn't work:
Class.forName ("oracle.jdbc.driver.OracleDriver");
Connection con = DriverManager.getConnection
("jdbc:oracle:thin:@10.16.102.176:1540:dev", "scott", "tiger");
con.setAutoCommit(false);
CallableStatement ps = null;
String sql = " begin test_package.test_matrix( ?, ? , ? , ? ); end ; ";
ps = con.prepareCall(sql);
ps.setString(1,"p1");
ps.setString(2,"p2");
ps.setString(3,"p3");
ps.registerOutParameter(4,OracleTypes.CURSOR);
ps.execute();
ResultSet rset = (ResultSet) ps.getObject(1);
error message :
PLS-00306: wrong number or types of arguments in call to 'TEST_MATRIX'
ORA-06550: line 1, column 8:
PL/SQL: Statement ignored
Regards
Louis

Answer 1

Louis,
If I'm not mistaken, record types are not allowed. However, you can use object types instead. However, they must be database types. In other words, something like:
create or replace type ROW_ABC as object (
col1 varchar2(16),
col2 varchar2(16),
col3 varchar2(16 )
create or replace type MATRIX_ABC as table of ROW_ABC
/Then you can use the "ARRAY" and "STRUCT" (SQL) types in your java code. If I remember correctly, I recently answered a similar question either in this forum, or at JavaRanch -- but I'm too lazy to look for it now. Do a search for the terms "ARRAY" and "STRUCT".
For your information, there are also code samples of how to do this on the OTN Web site.
Good Luck,
Avi.