Issue opening pdf on mouse click

Question

I have build a swing app which makes search over lucene index and fetches the pdf file from derbydb saves in HDD and let me opens the pdf from the selected row.
public void mouseClicked(MouseEvent e){
            JTable table = (JTable)e.getSource();
            Point p = e.getPoint();               
            int row = table.rowAtPoint(p);
            int col = table.columnAtPoint(p);
            int pkey=dobj.getprimaryKey();    
            openPdf(pkey,(String)lst1.get(row));
public void openPdf(int pkey,String filename)
    DBReadOperations dbr1=new DBReadOperations();
    Connection conn1=dbr1.initalize();
    InputStream ip=null;
    ResultSet rs=dbr1.getPDFStuff(conn1, pkey, filename);
    try {
        while (rs.next()) {
            Blob bl = rs.getBlob(3);
            ip = bl.getBinaryStream();
    } catch (SQLException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    File fr=new File("c:\\savepdffiles");
    fr.mkdir();
    String str1="c:\\savepdffiles\\"+filename;
    System.out.println("entered the openpdf method"+str1);
    try{
    File f=new File(str1);
    InputStream input_Stream= ip;
    OutputStream out=new FileOutputStream(f);
    byte buf[]=new byte[1024];
    int len;
    while((len=input_Stream.read(buf))>0)
    out.write(buf,0,len);
    out.close();
    input_Stream.close();
    Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler "+ str1);
   dbr1.closeOperation(conn1);
    }catch (IOException e){
        System.out.println(e.getMessage());
} now when I make my next search and select the another row to open another pdf, all the older pdfs also get open in the order I clicked on the rows.
I want to avoid this, anyone can tell me why the mouse event is going for older pdfs.
Edited by: angelace on Dec 14, 2009 12:22 AM
Edited by: angelace on Dec 14, 2009 12:23 AM

Answer 1

Your code while (rs.next()) {
            Blob bl = rs.getBlob(3);
            ip = bl.getBinaryStream();
        }will set 'ip' to the last entry in the result set and you will open that document. If your DB contains different versions of your file, is the last one the one you want?