Empty strings when passing a Java object to a Stored Procedure

Question

Hi,
I'm using the interface SQLData to pass Java objects to StoredProcedures. All the object's attributes 'arrive' to the Stored Procedure ok, except the strings, which are empty.
Here is my Oracle object:
TYPE OBJ_ASJFF_OBJ1 IS OBJECT (
ARG1 CHAR(3),
ARG2 NUMBER(4),
ARG3 CHAR(4),
ARG4 NUMBER(7),
ARG5 NUMBER(13,2),
ARG6 CHAR(1));
The nested table of that object:
TYPE TAB_ASJFF_OBJ1 AS TABLE OF OBJ_ASJFF_OBJ1;
The procedure declaration:
PROCEDURE Pup_Instaura_Processo (                              x_crCert IN TAB_ASJFF_OBJ1,
x_cResult OUT CHAR(4)
My SQLData implementation:
public void writeSQL(SQLOutput stream) throws SQLException {
               stream.writeString(getArg1());     
               stream.writeInt(getArg2().intValue());
               stream.writeString(getArg3());          
               stream.writeLong(getArg4().longValue());     
               stream.writeBigDecimal(getArg5());
               stream.writeString(getArg6());
Can anybody help me?
Thanks in advance
Rui Gonçalves

Answer 1

not exactly what you wanted but ingredients can be found at
- JPublisher's docuemntation (especially "Type Mapping Support Through PL/SQL Conversion Functions")
- http://otn.oracle.com/sample_code/tech/java/jsp/Oracle9iJSPSamples.html (Best Hotels PL/SQL Sample )
- http://otn.oracle.com/tech/xml/xdk_sample/xdksample_093001i.html
hope this helps
Kuassi
I have a Java Stored procedure which takes an instance of a different java object as its parameter.
I need to do this from a pl/sql package - can anyone point me to a sample etc (looked on the website but don't see one) ?
Andrew