Blob writing error ORA-29532 Java call terminated Unsupported feature

Question

Hi there,
I've got the following Java code which tries to write to a BLOB file. It's a version of some code to extract files from a zip archive, but with everything but the erroring call stripped out:
create or replace and compile java source named zipunpack as
package org.bristol.cyps;
import oracle.sql.BLOB;
import java.util.zip.*;
public class ZipUnpack
public static int unpack(BLOB ziparray[], String filename, BLOB filearray[])
throws java.sql.SQLException, java.io.IOException
BLOB file = filearray[0];
java.io.OutputStream fileout = file.setBinaryStream(0L);
return 1;
This is published as follows:
create or replace function zip_unpack (
pio_zip in out nocopy blob
, pi_filename in varchar2
, pio_file in out nocopy blob
) return number as language java
name 'org.bristol.cyps.ZipUnpack.unpack(oracle.sql.BLOB[], java.lang.String, oracle.sql.BLOB[]) return java.lang.Integer';
And called like so:
procedure send_zip_file (
pi_zip in out nocopy blob
, pi_filename in varchar2
) is
file blob;
completed integer;
begin
dbms_lob.createtemporary (
lob_loc => file
, cache => false
, dur => dbms_lob.call
completed := zip_unpack(pi_zip, pi_filename, file);
if completed > 0 then
bare_html.print_blob(file);
else
htp.print('File "' || pi_filename || '" not found');
end if;
end;
This, as far as I can tell from the documentation, should work. Unfortunately, though, it generates an error:
ORA-29532: Java call terminated by uncaught Java exception: java.sql.SQLException: Unsupported feature
The particular line which is causing the error is the "java.io.OutputStream fileout = file.setBinaryStream(0L);" If I remove this, it runs fine. I'm flumoxed as to why this might be causing an "Unsupported feature" exception when it's documented as being supported. Can anyone shed any light?
Cheers,
Robert
Message was edited for more clarity

Answer 1

Hi,
It looks like you are not using 10g JDBC. java.sql.Blob.setBinaryStream is a JDBC 3.0 method. In 9iR2 we added support for jdk14 and added stub methods for JDBC 3.0 behavior without fully implementing them. 10gR1 was the first version where the JDBC3.0 methods were fully supported.
The workaround is to use the Oracle proprietary method oracle.sql.BLOB.getBinaryOutputStream
Kuassi, http://db360.blogspot.com