Error saving image to PostgresSQL 8.x database

Example 8-2. Using the JDBC Large Object Interface

For example, suppose you have a table containing the file name of an image and you have a large object containing that image:

CREATE TABLE images (imgname text, imgoid oid);

To insert an image, you would use:

File file = new File("myimage.gif"); FileInputStream fis = new FileInputStream(file); PreparedStatement ps = conn.prepareStatement("INSERT INTO images VALUES (?, ?)"); (1) ps.setString(1, file.getName()); ps.setBinaryStream(2, fis, file.length()); ps.executeUpdate(); ps.close(); fis.close();

I have used this example code to create my own method to save an image file. The code is listed below:

**
     * This method saves the current record if it has been modified.     
     *
     * @return Integer.
     */
    private void saveImageRec() {
        java.sql.Date          sqlDate;
        java.sql.Time          sqlTime;
        java.sql.Timestamp     sqlTimestamp;
        java.util.Date         now;
        long                   nowLong;
        int                    returnVal;
                
        PreparedStatement      ps = null;
        File                   file = null;        
        FileInputStream        fis = null;
        int                   vehinfoid = 0;
                    
        //Get the cuurent date, time and timestamp
        now = new java.util.Date();
        nowLong = now.getTime();
        sqlDate = new java.sql.Date(nowLong);
        sqlTime = new java.sql.Time(nowLong);
        sqlTimestamp = new java.sql.Timestamp(nowLong);
                
        try {                                       
            file = new File(photoFilePath);        
            fis = new FileInputStream(file);     
        } catch (NullPointerException  e) {
            System.out.println(e.getMessage());
        } catch (FileNotFoundException e) {
            System.out.println(e.getMessage());
        }    
        
        try {
             pgconn.connection.setAutoCommit(false);
             vehinfoid =  (Integer)vehicleinfoTable.getValue(0,  "vehinfoid");
             
             if (newrec) {                                                    
               ps =  pgconn.connection.prepareStatement("INSERT INTO tbl_images VALUES (?, ?, ?, ?, ?, ?, ?, ?)"); 
        
               ps.setInt(1, vehinfoid); //vehinfoid 
               ps.setString(2, file.getName()); //Image file name        
               ps.setBinaryStream(3, fis, (int) file.length()); //image file
               ps.setDate(4, sqlDate); //changeddate 
               ps.setTime(5, sqlTime); //changedtime 
               ps.setString(6, "Fred Cunningham"); //changedby 
               ps.setTimestamp(7, sqlTimestamp); //creationdatetime 
               ps.setString(8, "Fred Cunningham"); //createdby 
             } else {
               ps =  pgconn.connection.prepareStatement("UPDATE tbl_images SET   imagename = ?, imageoid = ?, changeddate = ?, changedtime = ?, changedby = ? WHERE vehinfoid = ?"); 
               
               ps.setString(1, file.getName()); //Image file name        
               ps.setBinaryStream(2, fis, (int) file.length()); //image file
               ps.setDate(3, sqlDate); //changeddate 
               ps.setTime(4, sqlTime); //changedtime 
               ps.setString(5, "Fred Cunningham"); //changedby 
               ps.setInt(6, vehinfoid); //dispatchid 
             }   
             
            returnVal = ps.executeUpdate();
            ps.close();
            fis.close(); 
        } catch (SQLException e) {                                               
           System.out.println(e.getMessage()); 
        } catch (IOException e) {    
           System.out.println(e.getMessage());     
        }                   
    }

-------------------------------------  table -----------------------------------------------------------

CREATE TABLE tbl_images
(
  imageid int4 NOT NULL DEFAULT nextval('public."tbl_images_imagid_seq"'::text),
  vehinfoid int4 NOT NULL,
  imagename text,
  imageoid oid,
  changeddate date NOT NULL,
  changedtime time NOT NULL,
  changedby varchar(25) NOT NULL,
  creationdatetime timestamp NOT NULL,
  createdby varchar(25) NOT NULL,
  CONSTRAINT tbl_images_pk PRIMARY KEY (imageid)
) 
WITHOUT OIDS;
ALTER TABLE tbl_images OWNER TO postgres;
GRANT ALL ON TABLE tbl_images TO postgres;
GRANT ALL ON TABLE tbl_images TO GROUP tsam;

--------------------------------------------------------------------------------------------------------

when I execute the code I get the error listed below:

   ERROR: column "imageoid" is of type oid but expression is of type bytea

Can anyone tell what I doing wrong.

Thanks 

Fred Cunningham