Invalid empty lob operation

Question

Sir,
Following code generates "INVALID EMPTY LOB OPERATION" when called through PL/SQL:
import javax.mail.*;
import javax.mail.internet.*;
import java.lang.*;
import java.io.*;
import java.util.*;
import java.sql.*;
import oracle.jdbc.*;
import oracle.sql.*;
public class pmJava
public static void MailClient(String[] args){
if (args.length == 0) {
System.err.println(
"Usage: MailClient protocol://username:password@host:port/foldername msgNum");
return;
URLName server = new URLName(args[0]);
int msgNum = 1;
try {
Connection conn=DriverManager.getConnection("jdbc:default:connection");
Session session = Session.getDefaultInstance(new Properties(), null);
// Connect to the server and open the folder
Folder folder = session.getFolder(server);
if (folder == null) {
System.out.println("Folder " + server.getFile() + " not found.");
System.exit(1);
folder.open(Folder.READ_ONLY);
byte[] buffer = new byte[10*1024];
// Get the messages from the server
Message[] messages = folder.getMessages();
// for (int i = 0; i < messages.length; i++) {
for (int i = msgNum; i <=msgNum; i++) {
System.out.println("------------ Message " + (i+1)
+ " ------------");
InputStream is = messages.getInputStream();
if (!(is instanceof BufferedInputStream))
is = new BufferedInputStream(is);
int isIndex;
BLOB msgContent = BLOB.createTemporary(conn,false,BLOB.DURATION_SESSION);
msgContent = BLOB.empty_lob();
OutputStream os = msgContent.getBinaryOutputStream();
while ((isIndex = is.read(buffer)) != -1)
os.write(buffer);
os.close();
folder.close(false);
catch (Exception e) {
e.printStackTrace();
i want to store the message contents in BLOB variable and then want to insert into database field using JavaMail 1.3API.
Regards,
Manpreet Johal

Answer 1

I believe you will want to use oracle.sql.BLOB.createTemporary(java.sql.Connection conn, boolean cache, int _duration).
Refer to the API at:
http://docs.oracle.com/cd/E11882_01/appdev.112/e13995/oracle/sql/BLOB.html