Need help reading BLOB on a Zaurus

Question

I know the topic of BLOBs comes up a lot, but I couldn't find an answer to my problem after searching the existing posts.
I'm trying to retrieve an image stored as a BLOB in an oracle DB.. The code works fine on my PC when I use getBLOB (commented out section of the code), but the target device (Zaurus or other Linux handheld) is limited to the Java 1.2 API. I changed the code to use getBinaryStream instead. Everything seems to work on the PC, but it still fails on the Zaurus. Not sure why. Any ideas?
stmt = connection.createStatement();
records = stmt.executeQuery(HOTEL_SECTION_IMAGE_QUERY);
while (records.next()){
    if (DEBUGGING_TEXT_ON)System.out.println("Reading Record");
    /*Blob image_blob=records.getBlob(3);
    if (image_blob == null){
        if (DEBUGGING_TEXT_ON)System.out.println("No image BLOB found");
    }else{
        if (DEBUGGING_TEXT_ON)System.out.println("Image BLOB found");
        if (DEBUGGING_TEXT_ON)System.out.println("Image BLOB size: " + image_blob.length());
        AppVariables.hotel_section_image = Toolkit.getDefaultToolkit().createImage(image_blob.getBytes(1L, (int) image_blob.length()));
        java.io.InputStream blob_stream;
        byte[] blob_buffer = new byte[0];
        byte[] blob_stream_packet = new byte[1];
        int temp;
        blob_stream = records.getBinaryStream (3);
        if (records.wasNull()){
            if (DEBUGGING_TEXT_ON)System.out.println("Record was NULL.");
        }else{
            if (DEBUGGING_TEXT_ON)System.out.println("BLOB Found");
            while ((temp = blob_stream.read(blob_stream_packet)) != -1) {
                if (DEBUGGING_TEXT_ON)System.out.println("Reading " + temp + " bytes from Image BLOB");
                if (DEBUGGING_TEXT_ON)System.out.println("Current Byte = " + blob_stream_packet[0]);
                byte[] temp_buffer = new byte[blob_buffer.length];
                System.arraycopy(blob_buffer, 0, temp_buffer, 0, blob_buffer.length);
                if (DEBUGGING_TEXT_ON)System.out.println("Extending BLOB buffer");
                blob_buffer = new byte[temp_buffer.length + 1];
                System.arraycopy(temp_buffer, 0, blob_buffer, 0, temp_buffer.length);
                if (DEBUGGING_TEXT_ON)System.out.println("Adding packet to BLOB buffer");
                blob_buffer[blob_buffer.length - 1] = blob_stream_packet[0];
            AppVariables.hotel_section_image = Toolkit.getDefaultToolkit().createImage(blob_buffer);
records.close();
stmt.close();Error output is:
Reading Record
Record was NULL.
Reading Record
Record was NULL.
Reading Record
Record was NULL.
Reading Record
Record was NULL.
Reading Record
Record was NULL.
Reading Record
Exception occurred during event dispatching:
java.lang.NoClassDefFoundError: java/sql/Blob
     at oracle.jdbc.driver.OracleStatement.get_blob_value (bytecode 15)
     at oracle.jdbc.driver.OracleStatement.getBinaryStreamValue (bytecode 410)
     at oracle.jdbc.driver.OracleResultSetImpl.getBinaryStream (bytecode 6)
     at windows.LoginView.checkLogin (bytecode 278)
     at windows.LoginView$LoginListener.actionPerformed (bytecode 14)
     at java.awt.Button.processActionEvent (bytecode 12)
     at java.awt.Button.processEvent (bytecode 12)
     at java.awt.Component.dispatchEventImpl (bytecode 173)
     at java.awt.Component.dispatchEvent (bytecode 2)
     at java.awt.EventDispatchThread.run (bytecode 51)
Thanks in advance.
Message was edited by:
RDLake
Message was edited by:
RDLake

Answer 1

1. There is a rather long, in-depth article in the wiki already. Have a look  here and here
2. is discribed there as well.
3. There is a rather long, in-depth article in the wiki already.
Last edited by JackH79 (2011-04-08 05:27:58)