Using code of odisqlunload in a procedure...

hi...
I m using code for ODISQLUNLOAD in a procedure....
code is :
Command on target:
OdiSqlUnload "-FILE=" "-DRIVER=<%=odiRef.getInfo("SRC_JAVA_DRIVER")%>" "-URL=<%=odiRef.getInfo("SRC_JAVA_URL")%>" "-USER=<%=odiRef.getInfo("SRC_USER_NAME")%>" "-PASS=<%=odiRef.getInfo("SRC_ENCODED_PASS")%>" "-FILE_FORMAT=FIXED" "-ROW_SEP=\r\n" "-DATE_FORMAT=yyyy/MM/dd HH:mm:ss" "-CHARSET_ENCODING=ISO8859_1" "-XML_CHARSET_ENCODING=ISO-8859-1"
"-FETCH_SIZE=5000"
"select 1 from dual "
but when i execute it ..it gives me error saying : invalid SQL statement
I tried
select 1 from dual...etc but error remains the same....
my target technology is file......
where i m going wrong??

Hi,
You cant select FILE as target technology when u are using ODI Tools. You need to select ODI Tools ( in 11g) or Sunopsis API (in 10g) as such.
So i assume ur requirement is to export data from RDBMS table "dynamically" using Odi tools.
If my understanding is right. Do the below steps to achieve the same.
1. In the procedure, create an OPTION, lets say, UNLOAD_DIR, Type- Value, Description- Unload Directory, Default Value- D:\SampleData (here u need to mention ur directory, in case if you changed ur directory in future u can only need to change the code here).
2. Create a new step in Procedure and add the below code in Command on Target, selecting ODI TOOLS or SUOPSIS API as technology,
OdiSqlUnload "-FILE=<%=snpRef.getOption("UNLOAD_DIR")%>\<%=snpRef.getSession("SESS_NO")%>.txt" "-DRIVER=<%=odiRef.getInfo("SRC_JAVA_DRIVER")%>" "-URL=<%=odiRef.getInfo("SRC_JAVA_URL")%>" "-USER=<%=odiRef.getInfo("SRC_USER_NAME")%>" "-PASS=<%=odiRef.getInfo("SRC_ENCODED_PASS")%>" "-FILE_FORMAT=VARIABLE" "-ROW_SEP=\r\n" "-DATE_FORMAT=yyyy/MM/dd HH:mm:ss" "-CHARSET_ENCODING=ISO8859_1" "-XML_CHARSET_ENCODING=ISO-8859-1"
select sysdate from dual
Command on source:
Technology- Oracle
Logical Schema- Whichever points to Oracle
Context- Global/Whichever points to the above logical schema.
Output:
In D:\SampleData, u may find a file name with the session number and value as sysdate.
Makes sense?
Thanks,
Guru

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                                  super.nodeInserted(parent, n, index);
                             } else {
                                  // need to get index before hiding...
                                  int index = getIndexOfChild(parent, n);
                                  n.setVisible(v);
                                  super.nodeRemoved(parent, n, index);
                        return true;
              return false;
          * Checks if the specified node is visible and all nodes above it are
          * visible. 
          * @param  node  the node
          * @param  true if the path is visible, else false
         public boolean isPathToNodeVisible(Object node) {
              Object[] path = getPathToRoot(node);
              for(int i = 0; i < path.length; i++) {
                   if(!isNodeVisible(path)) {
                        return false;
              return true;
         * Sets the specified node and all nodes above it to be visible.
         * Note that this method will notify the tree to reflect any changes to
         * node visibility.
         * @param node the node
         public void ensurePathToNodeVisible(Object node) {
              Object[] path = getPathToRoot(node);
              for(int i = 0; i < path.length; i++) {
                   setNodeVisible(path[i], true);
         * Returns the child of parent at index index in the parent's child array.
         * @param parent the parent node
         * @param index the index
         * @return the child or null if no children
         public Object getChild(Object parent, int index) {
              if(parent instanceof TreeNode) {
                   TreeNode p = (TreeNode)parent;
                   for(int i = 0, j = -1; i < p.getChildCount(); i++) {
                        TreeNode pc = (TreeNode)p.getChildAt(i);
                        if(isNodeVisible(pc)) {
                             j++;
                        if(j == index) {
                             return pc;
              return null;
         * Returns the number of children of parent.
         * @param parent the parent node
         * @return the child count
         public int getChildCount(Object parent) {
              int count = 0;
              if(parent instanceof TreeNode) {
                   TreeNode p = (TreeNode)parent;
                   for(int i = 0; i < p.getChildCount(); i++) {
                        TreeNode pc = (TreeNode)p.getChildAt(i);
                        if(isNodeVisible(pc)) {
                             count++;
              return count;
         * Returns the index of child in parent.
         * @param parent the parent node
         * @param child the child node
         * @return the index of the child node in the parent
         public int getIndexOfChild(Object parent, Object child) {
              int index = -1;
              if(parent instanceof TreeNode && child instanceof TreeNode) {
                   TreeNode p = (TreeNode)parent;
                   TreeNode c = (TreeNode)child;
                   if(isNodeVisible(c)) {
                        index = 0;
                        for(int i = 0; i < p.getChildCount(); i++) {
                             TreeNode pc = (TreeNode)p.getChildAt(i);
                             if(pc.equals(c)) {
                                  return index;
                             if(isNodeVisible(pc)) {
                                  index++;
              return index;
         * Main method for testing.
         * @param args the command-line arguments
         public static void main(String[] args) {
              JFrame f = new JFrame();
              f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              HideableMutableTreeNode root = new HideableMutableTreeNode("root");
              root.add(new HideableMutableTreeNode("child_1"));
              final HideableMutableTreeNode c2 = new HideableMutableTreeNode("child_2");
              c2.setVisible(false);
              final HideableMutableTreeNode c2a = new HideableMutableTreeNode("child_2_A");
              c2.add(c2a);
              c2.add(new HideableMutableTreeNode("child_2_B"));
              root.add(c2);
              HideableMutableTreeNode c3 = new HideableMutableTreeNode("child_3");
              HideableMutableTreeNode cC = new HideableMutableTreeNode("child_3_C");
              cC.setVisible(false);
              c3.add(cC);
              c3.add(new HideableMutableTreeNode("child_3_D"));
              root.add(c3);
              root.add(new HideableMutableTreeNode("child_4"));
              root.add(new HideableMutableTreeNode("child_5"));
              DefaultMutableTreeNode c6 = new DefaultMutableTreeNode("child_6");
              c6.add(new DefaultMutableTreeNode("child_6_A"));
              c6.add(new DefaultMutableTreeNode("child_6_B"));
              root.add(c6);
              final HideableTreeModel model = new HideableTreeModel(root);
              JTree tree = new JTree(model);
              f.getContentPane().add(new JScrollPane(tree), BorderLayout.CENTER);
              JButton b = new JButton("toggle");
              b.addActionListener(new ActionListener() {
                   public void actionPerformed(ActionEvent e) {
                        model.setNodeVisible(c2, !model.isNodeVisible(c2));
                        //model.ensurePathToNodeVisible(c2a);
              f.getContentPane().add(b, BorderLayout.SOUTH);
              f.pack();
              f.setSize(300, 500);
              f.show();
    // *** HideableMutableTreeNode ***
    import javax.swing.*;
    import javax.swing.tree.*;
    * <code>HideableMutableTreeNode</code> is a <code>DefaultMutableTreeNode</code>
    * implementation that works with <code>HideableTreeModel</code>.
    public class HideableMutableTreeNode extends DefaultMutableTreeNode {
         * The node is visible flag.
         public boolean visible = true;
         * Creates a tree node that has no parent and no children, but which
         * allows children.
         public HideableMutableTreeNode() {
              super();
         * Creates a tree node with no parent, no children, but which allows
         * children, and initializes it with the specified user object.
         * @param userObject - an Object provided by the user that
         * constitutes the node's data
         public HideableMutableTreeNode(Object userObject) {
              super(userObject);
         * Creates a tree node with no parent, no children, initialized with the
         * specified user object, and that allows children only if specified.
         * @param userObject - an Object provided by the user that
         * constitutes the node's data
         * @param allowsChildren - if true, the node is allowed to have child
         * nodes -- otherwise, it is always a leaf node
         public HideableMutableTreeNode(Object userObject, boolean allowsChildren) {
              super(userObject, allowsChildren);
         * Checks if the node is visible.
         * @return true if the node is visible, else false
         public boolean isVisible() {
              return this.visible;
         * Sets if the node is visible.
         * @param v true if the node is visible, else false
         public void setVisible(boolean v) {
              this.visible = v;
    // *** TreeNodeTreeModel ***
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    import javax.swing.event.*;
    import javax.swing.tree.*;
    * <code>TreeNodeTreeModel</code> is an <code>AbstractTreeModel</code>
    * implementation for <code>javax.swing.tree.TreeNode</code> objects.
    public class TreeNodeTreeModel extends AbstractTreeModel {
         * Creates a new <code>TreeNodeTreeModel</code> object.
         * @param root the root node
         public TreeNodeTreeModel(TreeNode root) {
              super();
              setRoot(root);
         * Returns the parent of the child node.
         * @param node the child node
         * @return the parent or null if root
         public Object getParent(Object node) {
              if(node != getRoot() && (node instanceof TreeNode)) {
                   return ((TreeNode)node).getParent();
              return null;
         * Returns the child of parent at index index in the parent's child array.
         * @param parent the parent node
         * @param index the index
         * @return the child or null if no children
         public Object getChild(Object parent, int index) {
              if(parent instanceof TreeNode) {
                   return ((TreeNode)parent).getChildAt(index);
              return null;
         * Returns the number of children of parent.
         * @param parent the parent node
         * @return the child count
         public int getChildCount(Object parent) {
              if(parent instanceof TreeNode) {
                   return ((TreeNode)parent).getChildCount();
              return 0;
         * Returns the index of child in parent.
         * @param parent the parent node
         * @param child the child node
         * @return the index of the child node in the parent
         public int getIndexOfChild(Object parent, Object child) {
              if(parent instanceof TreeNode && child instanceof TreeNode) {
                   return ((TreeNode)parent).getIndex((TreeNode)child);
              return -1;
         * Returns true if node is a leaf.
         * @param node the node
         * @return true if the node is a leaf
         public boolean isLeaf(Object node) {
              if(node instanceof TreeNode) {
                   return ((TreeNode)node).isLeaf();
              return true;
         * Main method for testing.
         * @param args the command-line arguments
         public static void main(String[] args) {
              JFrame f = new JFrame();
              f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");
              root.add(new DefaultMutableTreeNode("child_1"));
              DefaultMutableTreeNode c2 = new DefaultMutableTreeNode("child_2");
              c2.add(new DefaultMutableTreeNode("child_2_A"));
              c2.add(new DefaultMutableTreeNode("child_2_B"));
              root.add(c2);
              root.add(new DefaultMutableTreeNode("child_3"));
              root.add(new DefaultMutableTreeNode("child_4"));
              JTree tree = new JTree(new TreeNodeTreeModel(root));
              f.getContentPane().add(new JScrollPane(tree));
              f.pack();
              f.setSize(300, 500);
              f.show();
    // *** AbstractTreeModel ***
    import java.awt.*;
    import java.awt.event.*;
    import java.io.*;
    import java.net.*;
    import java.text.*;
    import java.util.*;
    import javax.swing.*;
    import javax.swing.event.*;
    import javax.swing.tree.*;
    public abstract class AbstractTreeModel implements TreeModel {
         * The list of tree model listeners.
         private Vector modelListeners = new Vector();
         * The root object of the tree.
         private Object root = null;
         * Basic no-op constructor.
         public AbstractTreeModel() {
         * Gets the root object of the tree.
         * @return the root object
         public Object getRoot() {
              return this.root;
         * Sets the root object of the tree.
         * @param r the root object
         protected void setRoot(Object r) {
              this.root = r;
         * Gets the path to the root node for the specified object.
         * @param node the root node
         * @return the path to the object or <CODE>null</CODE>
         public Object[] getPathToRoot(Object node) {
              return getPathToRoot(node, 0);
         * Gets the path to the root node for the specified object.
         * @param node the root node
         * @param i the current index
         * @return the path to the object or <CODE>null</CODE>
         private Object[] getPathToRoot(Object node, int i) {
              Object anode[];
              if(node == null) {
                   if(i == 0) {
                        return null;
                   anode = new Object[i];
              } else {
                   i++;
                   if(node == getRoot()) {
                        anode = new Object[i];
                   } else {
                        anode = getPathToRoot(getParent(node), i);
                   anode[anode.length - i] = node;
              return anode;
         * Gets the parent object of the specified object. This method is not
         * part of the <code>javax.swing.tree.TreeModel</code> interface, but is
         * required to support the <code>getPathToRoot(Object)</code> method,
         * which is widely used in this class. Therefore, it is important to
         * correctly implement this method.
         * @param obj the object
         * @parma the parent object or null if no parent or invalid object
         protected abstract Object getParent(Object obj);
         * Adds a listener for the <CODE>TreeModelEvent</CODE> posted after the
         * tree changes.
         * @param l the tree model listener
         public void addTreeModelListener(TreeModelListener l) {
              modelListeners.addElement(l);
         * Removes a listener previously added with addTreeModelListener().
         * @param l the tree model listener
         public void removeTreeModelListener(TreeModelListener l) {
              modelListeners.removeElement(l);
         * Forces the tree to reload. This is useful when many changes occur
         * under the root node in the tree structure.
         * <b>NOTE:</b> This will cause the tree to be collapsed. To maintain
         * the expanded nodes, see the <code>getExpandedPaths(JTree)</code>
         * and <code>expandPaths(JTree, ArrayList)</code> methods.
         * @see #getExpandedPaths(JTree)
         * @see #expandPaths(JTree, ArrayList)
         public void reload() {
              reload(getRoot());
         * Forces the tree to repaint. This is useful when many changes occur
         * under a specific node in the tree structure.
         * <b>NOTE:</b> This will cause the tree to be collapsed below the
         * updated node.
         * @param node the node that changed
         public void reload(Object node) {
              if(node != null) {
                   TreePath tp = new TreePath(getPathToRoot(node));
                   fireTreeStructureChanged(new TreeModelEvent(this, tp));
         * Messaged when the user has altered the value for the item identified
         * by <CODE>path</CODE> to <CODE>newValue</CODE>.
         * @param path the path to the changed object
         * @param newValue the new value
         public void valueForPathChanged(TreePath path, Object newValue) {
              nodeChanged(path.getLastPathComponent());
         * Notifies the tree that nodes were inserted. The index is looked up
         * automatically.
         * @param node the parent node
         * @param child the inserted child node
         public void nodeInserted(Object node, Object child) {
              nodeInserted(node, child, -1);
         * Notifies the tree that nodes were inserted.
         * @param node the parent node
         * @param child the inserted child node
         * @param index the index of the child
         public void nodeInserted(Object node, Object child, int index) {
              if(index < 0) {
                   index = getIndexOfChild(node, child);
              if(node != null && child != null && index >= 0) {
                   TreePath tp = new TreePath(getPathToRoot(node));
                   int[] ai = { index };
                   Object[] ac = { child };
                   fireTreeNodesInserted(new TreeModelEvent(this, tp, ai, ac));
         * Notifies the tree that nodes were removed. The index is required
         * since by this point, the object will no longer be in the tree.
         * @param node the parent node
         * @param child the removed child node
         * @param index the index of the child
         public void nodeRemoved(Object node, Object child, int index) {
              if(node != null && child != null && index >= 0) {
                   TreePath tp = new TreePath(getPathToRoot(node));
                   int[] ai = { index };
                   Object[] ac = { child };
                   fireTreeNodesRemoved(new TreeModelEvent(this, tp, ai, ac));
         * Notifies the tree that a node was changed.
         * @param node the changed node
         public void nodeChanged(Object node) {
              if(node != null) {
                   TreePath tp = new TreePath(getPathToRoot(node));
                   fireTreeNodesChanged(new TreeModelEvent(this, tp, null, null));
         * Fires "tree nodes changed" events to all listeners.
         * @param event the tree model event
         protected void fireTreeNodesChanged(TreeModelEvent event) {
              for(int i = 0; i < modelListeners.size(); i++) {
                   ((TreeModelListener)modelListeners.elementAt(i)).treeNodesChanged(event);
         * Fires "tree nodes inserted" events to all listeners.
         * @param event the tree model event
         protected void fireTreeNodesInserted(TreeModelEvent event) {
              for(int i = 0; i < modelListeners.size(); i++) {
                   ((TreeModelListener)modelListeners.elementAt(i)).treeNodesInserted(event);
         * Fires "tree nodes removed" events to all listeners.
         * @param event the tree model event
         protected void fireTreeNodesRemoved(TreeModelEvent event) {
              for(int i = 0; i < modelListeners.size(); i++) {
                   ((TreeModelListener)modelListeners.elementAt(i)).treeNodesRemoved(event);
         * Fires "tree structure changed" events to all listeners.
         * @param event the tree model event
         protected void fireTreeStructureChanged(TreeModelEvent event) {
              for(int i = 0; i < modelListeners.size(); i++) {
                   ((TreeModelListener)modelListeners.elementAt(i)).treeStructureChanged(event);
         * Records the list of currently expanded paths in the specified tree.
         * This method is meant to be called before calling the
         * <code>reload()</code> methods to allow the tree to store the paths.
         * @param tree the tree
         * @param pathlist the list of expanded paths
         public ArrayList getExpandedPaths(JTree tree) {
              ArrayList expandedPaths = new ArrayList();
              addExpandedPaths(tree, tree.getPathForRow(0), expandedPaths);
              return expandedPaths;
         * Adds the expanded descendants of the specifed path in the specified
         * tree to the internal expanded list.
         * @param tree the tree
         * @param path the path
         * @param pathlist the list of expanded paths
         private void addExpandedPaths(JTree tree, TreePath path, ArrayList pathlist) {
              Enumeration enum = tree.getExpandedDescendants(path);
              while(enum.hasMoreElements()) {
                   TreePath tp = (TreePath)enum.nextElement();
                   pathlist.add(tp);
                   addExpandedPaths(tree, tp, pathlist);
         * Re-expands the expanded paths in the specified tree. This method is
         * meant to be called before calling the <code>reload()</code> methods
         * to allow the tree to store the paths.
         * @param tree the tree
         * @param pathlist the list of expanded paths
         public void expandPaths(JTree tree, ArrayList pathlist) {
              for(int i = 0; i < pathlist.size(); i++) {
                   tree.expandPath((TreePath)pathlist.get(i));

    Hey
    I'm not trying to show anyone up here, but having just built a tree model for displaying an XML document in a tree, I thought this seemed like a neat exercise.
    I implemented this very differently from the @OP. I only have one class, HiddenNodeTreeModel. All the hidden node data is stored in the model itself in my class. The advantage of what I've created is it will work with any TreeModel. The disadvantage is that I think it's not going to be very scalable - the additional computing to get the number of child nodes and to adjust indexes is heavy. So if you need a scalable solution definitely don't use this.
    Anyway here you go
    HiddenNodeTreeModel.java
    ======================
    package tjacobs.ui.tree;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.Iterator;
    import javax.swing.JFrame;
    import javax.swing.JMenu;
    import javax.swing.JMenuBar;
    import javax.swing.JMenuItem;
    import javax.swing.JTree;
    import javax.swing.event.TreeModelListener;
    import javax.swing.tree.DefaultMutableTreeNode;
    import javax.swing.tree.DefaultTreeModel;
    import javax.swing.tree.TreeModel;
    import javax.swing.tree.TreePath;
    import tjacobs.ui.WindowUtilities;
    public class HiddenNodeTreeModel implements TreeModel {
         TreeModel mModel;
         ArrayList<Object> mHidden = new ArrayList<Object>();
         public HiddenNodeTreeModel (TreeModel model) {
              mModel = model;
         public void addTreeModelListener(TreeModelListener arg0) {
              mModel.addTreeModelListener(arg0);
         private ArrayList<Integer> getHiddenChildren(Object parent) {
              ArrayList<Integer> spots = new ArrayList<Integer>();
              Iterator _i = mHidden.iterator();
              while (_i.hasNext()) {
                   Object hidden = _i.next();
                   int idx = mModel.getIndexOfChild(parent, hidden);
                   if (idx != -1) {
                        spots.add(idx);
              return spots;
         public Object getChild(Object arg0, int index) {
              ArrayList<Integer> spots = getHiddenChildren(arg0);
              Collections.sort(spots);
              Iterator<Integer> _i = spots.iterator();
              while (_i.hasNext()) {
                   int num = _i.next();
                   if (num <= index) {
                        index++;
              return mModel.getChild(arg0, index);
         public int getChildCount(Object arg0) {
              ArrayList list = getHiddenChildren(arg0);
              System.out.println("size = " + list.size());
              return mModel.getChildCount(arg0) - list.size();
         public int getIndexOfChild(Object arg0, Object arg1) {
              int index = mModel.getIndexOfChild(arg0, arg1);
              ArrayList<Integer> spots = getHiddenChildren(arg0);
              Collections.sort(spots);
              Iterator<Integer> _i = spots.iterator();
              int toSub = 0;
              while (_i.hasNext()) {
                   int num = _i.next();
                   if (num <= index) {
                        toSub++;
              return index - toSub;
         public Object getRoot() {
              // TODO Auto-generated method stub
              return mModel.getRoot();
         public boolean isLeaf(Object arg0) {
              // TODO Auto-generated method stub
              return mModel.isLeaf(arg0);
         public void removeTreeModelListener(TreeModelListener arg0) {
              mModel.removeTreeModelListener(arg0);
         public void valueForPathChanged(TreePath arg0, Object arg1) {
              mModel.valueForPathChanged(arg0, arg1);
         public void hideNode(Object node) {
              if (node instanceof TreePath) {
                   node = ((TreePath)node).getLastPathComponent();
              mHidden.add(node);
         public void showNode(Object node) {
              mHidden.remove(node);
         public void showAll() {
              mHidden.clear();
          * @param args
         public static void main(String[] args) {
              // TODO Auto-generated method stub
              DefaultMutableTreeNode A = new DefaultMutableTreeNode("A");
              DefaultMutableTreeNode B = new DefaultMutableTreeNode("B");
              DefaultMutableTreeNode C = new DefaultMutableTreeNode("C");
              DefaultMutableTreeNode D = new DefaultMutableTreeNode("D");
              DefaultMutableTreeNode E = new DefaultMutableTreeNode("E");
              DefaultMutableTreeNode F = new DefaultMutableTreeNode("F");
              A.add(B);
              B.add(C);
              B.add(D);
              B.add(E);
              E.add(F);
              DefaultTreeModel model = new DefaultTreeModel(A);
              final HiddenNodeTreeModel hmodel = new HiddenNodeTreeModel(model);
              final JTree tree = new JTree(hmodel);
              JFrame jf = new JFrame("HiddenNodeTreeModel Test");
              jf.add(tree);
              JMenuBar bar = new JMenuBar();
              jf.setJMenuBar(bar);
              JMenu menu = new JMenu("Options");
              bar.add(menu);
              final JMenuItem hide = new JMenuItem("Hide");
              final JMenuItem show = new JMenuItem("ShowAll");
              menu.add(hide);
              menu.add(show);
              ActionListener al = new ActionListener() {
                   public void actionPerformed(ActionEvent ae) {
                        if (ae.getSource() == hide) {
                             hmodel.hideNode(tree.getSelectionPath());
                             tree.updateUI();
                        else {
                             hmodel.showAll();
                             tree.updateUI();
              hide.addActionListener(al);
              show.addActionListener(al);
              jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              jf.setBounds(100,100,100,100);
              jf.setVisible(true);
    }

  • Useful Code of the Day:  Splash Screen & Busy Application

    So you are making an Swing application. So what are two common things to do in it?
    1) Display a splash screen.
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    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    import javax.swing.event.*;
    * <CODE>AppFrame</CODE> is a <CODE>javax.swing.JFrame</CODE> subclass that
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    * all the same constructors as <CODE>JFrame</CODE>, plus a few others. 
    * Methods exist to show the frame centered on the screen, display a splash
    * screen, run an initializer thread and set the frame as "busy" to block 
    * user input. 
    public class AppFrame extends JFrame implements KeyListener, MouseListener {
          * The splash screen window. 
         private JWindow splash = null;
          * The busy state of the frame. 
         private boolean busy = false;
          * The glass pane used when busy. 
         private Component glassPane = null;
          * The original glass pane, which is reset when not busy. 
         private Component defaultGlassPane = null;
          * Creates a new <CODE>AppFrame</CODE>. 
         public AppFrame() {
              super();
              init();
          * Creates a new <CODE>AppFrame</CODE> with the specified
          * <CODE>GraphicsConfiguration</CODE>. 
          * @param  gc  the GraphicsConfiguration of a screen device
         public AppFrame(GraphicsConfiguration gc) {
              super(gc);
              init();
          * Creates a new <CODE>AppFrame</CODE> with the specified title. 
          * @param  title  the title
         public AppFrame(String title) {
              super(title);
              init();
          * Creates a new <CODE>AppFrame</CODE> with the specified title and
          * <CODE>GraphicsConfiguration</CODE>. 
          * @param  title  the title
          * @param  gc     the GraphicsConfiguration of a screen device
         public AppFrame(String title, GraphicsConfiguration gc) {
              super(title, gc);
              init();
          * Creates a new <CODE>AppFrame</CODE> with the specified title and
          * icon image. 
          * @param  title  the title
          * @param  icon   the image icon
         public AppFrame(String title, Image icon) {
              super(title);
              setIconImage(icon);
              init();
          * Creates a new <CODE>AppFrame</CODE> with the specified title and
          * icon image. 
          * @param  title  the title
          * @param  icon  the image icon
         public AppFrame(String title, ImageIcon icon) {
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         protected void init() {
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              glassPane = new JPanel();
              ((JPanel)glassPane).setOpaque(false);
              glassPane.addKeyListener(this);
              glassPane.addMouseListener(this);
          * Displays a new <CODE>JWindow</CODE> as a splash screen using the
          * specified component as the content.  The default size of the
          * component will be used to size the splash screen.  See the
          * <CODE>showSplash(Component, int, int)</CODE> method description for
          * more details. 
          * @param  c  the splash screen contents
          * @return  the window object
          * @see  #showSplash(Component, int, int)
          * @see  #hideSplash()
         public JWindow showSplash(Component c) {
              return showSplash(c, -1, -1);
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          * specified component as the content.  The component should have all
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          * The splash screen is centered on monitor.  If width and height are
          * <CODE><= 0</CODE>, the default size of the component will be used
          * to size the splash screen. 
          * <P>
          * The window object is returned to allow the application to manipulate
          * it, (such as move it or resize it, etc.).  However, <B>do not</B>
          * dispose the window directly.  Instead, use <CODE>hideSplash()</CODE>
          * to allow internal cleanup. 
          * <P>
          * If the component is <CODE>null</CODE>, a default component with the
          * frame title and icon will be created. 
          * <P>
          * The splash screen window will be passed the same
          * <CODE>GraphicsConfiguration</CODE> as this frame uses. 
          * @param  c  the splash screen contents
          * @param  w  the splash screen width
          * @param  h  the splash screen height
          * @return  the window object
          * @see  #showSplash(Component)
          * @see  #hideSplash()
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              if(splash != null) {
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                   if(splash.isShowing()) {
                        return splash;
                   } else {
                        splash = null;
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              // based on the frame title and icon
              if(c == null) {
                   JPanel p = new JPanel();
                   p.setBorder(BorderFactory.createCompoundBorder(
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                        BorderFactory.createEmptyBorder(10, 10, 10, 10)
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                        l.setText("Loading " + getTitle() + "...");
                   if(getIconImage() != null) {
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                   p.add(l);
                   c = p;
              splash = new JWindow(this, getGraphicsConfiguration());
              splash.getContentPane().add(c);
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              if(w > 0 && h > 0) {
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              } else {
                   splash.setSize(c.getPreferredSize().width, c.getPreferredSize().height);
              centerComponent(splash);
              splash.show();
              return splash;
          * Disposes the splash window. 
          * @see  #showSplash(Component, int, int)
          * @see  #showSplash(Component)
         public void hideSplash() {
              if(splash != null) {
                   splash.dispose();
                   splash = null;
          * Runs an initializer <CODE>Runnable</CODE> object in a new thread. 
          * The initializer object should handle application initialization
          * steps.  A typical use would be:
          * <OL>
          *   <LI>Create the frame.
          *   <LI>Create the splash screen component.
          *   <LI>Call <CODE>showSplash()</CODE> to display splash screen.
          *   <LI>Run the initializer, in which: 
          *   <UL>
          *     <LI>Build the UI contents of the frame.
          *     <LI>Perform other initialization (load settings, data, etc.).
          *     <LI>Pack and show the frame.
          *     <LI>Call <CODE>hideSplash()</CODE>.
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          * </OL>
          * <P>
          * <B>NOTE:</B>  Since this will be done in a new thread that is
          * external to the event thread, any updates to the splash screen that
          * might be done should be triggered through with
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              Thread t = new Thread(r);
              t.start();
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         public void showCentered() {
              centerComponent(this);
              this.show();
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          * @return  <CODE>true</CODE> if the frame is disabled;
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          * @see  #setBusy(boolean)
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                   // it's own glass pane for something special. 
                   if(busy) {
                        defaultGlassPane = getGlassPane();
                        setGlassPane(glassPane);
                   } else {
                        setGlassPane(defaultGlassPane);
                        defaultGlassPane = null;
                   glassPane.setVisible(busy);
                   glassPane.setCursor(busy ?
                        Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR) :
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          * when the frame is busy. 
          * @param  ke  the key event
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          * when the frame is busy. 
          * @param  ke  the key event
         public void keyReleased(KeyEvent ke) {
              ke.consume();
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          * when the frame is busy. 
          * @param  ke  the key event
         public void keyPressed(KeyEvent ke) {
              ke.consume();
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          * when the frame is busy. 
          * @param  me  the mouse event
         public void mouseClicked(MouseEvent me) {
              me.consume();
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          * when the frame is busy. 
          * @param  me  the mouse event
         public void mouseEntered(MouseEvent me) {
              me.consume();
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          * @param  me  the mouse event
         public void mouseExited(MouseEvent me) {
              me.consume();
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          * @param  me  the mouse event
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              me.consume();
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         public void mouseReleased(MouseEvent me) {
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          * Centers the component <CODE>c</CODE> on the screen. 
          * @param  c  the component to center
          * @see  #centerComponent(Component, Component)
         public static void centerComponent(Component c) {
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          * @param  p  the parent component to center on or null for screen
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         public static void centerComponent(Component c, Component p) {
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                   Dimension d = (p != null ? p.getSize() :
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                        try {
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                        try {
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    "Useful Code of the Day" is supplied by the person who posted this message. This code is not guaranteed by any warranty whatsoever. The code is free to use and modify as you see fit. The code was tested and worked for the author. If anyone else has some useful code, feel free to post it under this heading.

    Hi
    Thanks fo this piece of code. This one really help me
    Deepa

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