Stored procedure output parameter cast problem

Question

Hi
I call to an oracle stored procedure from java and when i get the output parameter i get a classCastException.
The output parameter is for example of typeA
typeA is a sql object composed by a parameter of typeB and a parameter of typeC
typeB is a sql table of typeD objects
and typeD, typeB are objects composed by numbers, varchar2, date.....
I know that i have all the java to sql mappings correctly done because when my typeA is an input parameter of a procedure, it works correctly.
But when i have it as an output parameter i can�t solve the classCastException.
This is more or less my java code to call to the procedure:
dbConn=DriverManager.getConnection(dnsName,dnsUser,dnsPwd);
Map map = dbConn.getTypeMap();          
map.put("TYPEA", Class.forName("tiposOracle.inv.Inv"));               
map.put("TYPEB", Class.forName("tiposOracle.inv.Inv_cab"));               
map.put("TYPED", Class.forName("tiposOracle.inv.Inv_lin"));
CallableStatement cstmt = dbConn.prepareCall("{call GENERAL.OBTENER_MENSAJE (?,?)}");
cstmt.setBigDecimal(1, codMensaje);
cstmt.registerOutParameter(2, OracleTypes.STRUCT, "TYPEA");
cstmt.execute();
Inv inv = (Inv)cstmt.getObject(2,map);       ////////Here the exception-----------------------------------------------------------------------------------------------
The java class Inv represents the sql object typeA as this:
public Inv_cab cab;
public ARRAY lins;
And the classes Inv_cab and Inv_lin typeB and typeD with dates, BigDecimals and String.
lins is the table of Inv_lin.
And finally, this is the exception i get:
java.lang.ClassCastException
     at tiposOracle.inv.Inv.readSQL(Invrpt.java:29)
     at oracle.sql.STRUCT.toClass(STRUCT.java:829)
     at oracle.sql.STRUCT.toJdbc(STRUCT.java:734)
     at oracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:6094)
     at oracle.jdbc.driver.OracleCallableStatement.getObject(OracleCallableStatement.java:840)
     at principal.PedirDatosMensaje.main(PedirDatosMensaje.java:103)
Can anyone help me?
Thanks

Answer 1

Now i get this exception in cstmt.registerOutParameter(2, OracleTypes.STRUCT);java.sql.SQLException: Conflicto de tipo de par�metro: sqlType=2002
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
     at oracle.jdbc.driver.OracleCallableStatement.registerOutParameterBytes(OracleCallableStatement.java:248)
     at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:402)
     at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:471)
     at principal.PedirDatosMensaje.main(PedirDatosMensaje.java:78)
Conflicto de tipo de par�metro means: conflict of parameter type