Creating Dynamic Applet-Columns

Question

Hi
I need to get data from a web-service in the form of stock-quotes and their prices.Once a user(e.g. having 5 stock-quotes)logs-in, the servlets calls the web-service and gets the values. Now these values need to be published to a Java-applet.
I have already achieved it technically using a GridBagLayout, but the format of the layout, in which the names and values of these scrips are published to the applet, doesn't stay same and once the applet gets refreshed, the layout gets disturbed.
Like for example, if the layout consisted of 5 rows and 2 columns when the applet was initialized, it comes as 10 columns and only a single row once it gets refreshed.
I am pasting the contents of the code with this post. Plz have a look:
* This code belongs to Covansys India Pvt Ltd., Bangalore, INDIA
* @author : EAI Team, Covansys India Pvt Ltd.
* Copyright Ravish Narula <[email protected]>
* Date:06/21/2005
import java.awt.*;
import java.applet.*;
import java.util.Date;
import java.applet.Applet;
import java.awt.Graphics;
import java.awt.event.*;
import java.net.*;
import java.util.*;
import java.io.*;
public class StockTickerApplet30 extends Applet {
Thread t = null;
int delay = 5000;
int tCount = 0;
URLConnection servletConnection;
Hashtable stockHashtable = null;
Hashtable oldStockValues = new Hashtable();
protected void makeLabel(String name, GridBagLayout gridbag, GridBagConstraints c) {
Label label = new Label(name);
gridbag.setConstraints(label, c);
add(label);
protected void makeTextField(String value, GridBagLayout gridbag, GridBagConstraints c, char color) {
Label textField = new Label(value);
if (color == 'g')
textField.setBackground(Color.green);
else if (color == 'r')
textField.setBackground(Color.red);
else
textField.setBackground(Color.gray);
gridbag.setConstraints(textField, c);
add(textField);
public void init() {
public void paint(Graphics g) {
try {
String location = "http://localhost:7001/etrade/StockQuoteServlet";
URL testServlet = new URL(location);
servletConnection = testServlet.openConnection();
// Don't used a cached version of URL connection.
servletConnection.setUseCaches(false);
servletConnection.setDefaultUseCaches(false);
servletConnection.setDoOutput(true); // to allow us to write to the URL
//super.init();
//g.drawString("111111 Applet: before out.close() 111111",10,10 );
//Write the message to the servlet
PrintStream out = new PrintStream(servletConnection.getOutputStream());
out.close();
// Read the input from the servlet.
// The servlet will return a serialized vector containing the details.
//inputStreamFromServlet = servletConnection.getInputStream();
//setSize(getPreferredSize());
//System.out.println(" Applet: before GetInputStream()" );
ObjectInputStream inputFromServlet = new ObjectInputStream(servletConnection.getInputStream());
//System.out.println(" Applet: before readObject()" );
stockHashtable = (Hashtable) inputFromServlet.readObject();
System.out.println("The Hashtable received from Servlet is ::" + stockHashtable);
} catch (java.net.MalformedURLException me) {
//System.out.println("The Exeeption message is ::"+me);
} catch (java.io.IOException ioe) {
//System.out.println("The Exeeption message is ::"+ioe);
} catch (Exception e) {
//System.out.println("The Exeeption message is ::"+e);
// Generate UI and populate Data
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
Panel p = new Panel();
setFont(new Font("Helvetica", Font.PLAIN, 14));
// setLayout(new GridBagLayout());
setBackground(Color.gray);
c.fill = GridBagConstraints.BOTH;
//c.fill = GridBagConstraints.VERTICAL;
// c.gridwidth=2;
// c.gridheight=stockHashtable.size();
int y = 0;
Enumeration e = stockHashtable.keys();
while (e.hasMoreElements()) {
String sName = (String) e.nextElement();
Double sValue = (Double) stockHashtable.get(sName);
//For next iteration comparision
oldStockValues.put(sName, sValue);
char color = 'w';
Double sOldValue = (Double) oldStockValues.get(sName);
int iComparision = sValue.compareTo(sOldValue);
if (iComparision > 0)
color = 'g';
else if (iComparision < 0)
color = 'r';
else
color = 'w';
c.weightx = 0.5;
c.gridx = 0;
c.gridy = y;
//c.weightx = 1.0;
//c.gridwidth = GridBagConstraints.RELATIVE;
makeLabel(sName, gridbag, c);
c.weightx = 0.5;
//c.weighty=100;
c.gridx = 1;
c.gridy = y;
c.gridwidth = GridBagConstraints.REMAINDER;
makeTextField(sValue.toString(), gridbag, c, color);
y++;
//tCount++;
//g.drawString("@@@@@@@@@@ Count of tCount is: @@@@@@@@@ "+ y ,10,10);
//setSize(getPreferredSize());
y = 0;
setLayout(gridbag);
y = 0;
//setLayout(new GridBagLayout());
validate();
//show();
try {
Thread t = Thread.currentThread();
t.sleep(5000);
y = 0;
repaint();
y = 0;
} catch (InterruptedException ie) {
*************************************************

Answer 1

sounds like this to me
DECLARE @ColumnList varchar(5000)
IF OBJECT_ID('PivotValues') IS NOT NULL
DROP TABLE PivotValues
SET @ColumnList = STUFF((SELECT DISTINCT ',[' + MemberValue + ']'
FROM Reporting.dbo.[MSPLT_ACNT Budget Type UserView]
FOR XML PATH('')),1,1,'')
DECLARE @Sql = 'SELECT LookupMemberUID,' + @ColumnList
+ 'INTO PivotValues FROM Reporting.dbo.[MSPLT_ACNT Budget Type UserView] t
PIVOT (MAX(MemberDescription) FOR MemberValue IN (' + @ColumnList + '))p'
EXEC(@SQL)
SELECT *
FROM (YourExistingQUery)q
INNER JOIN PivotValues p
ON p.LookupMemberUID = q.RelatedCol
You need to replace RelatedCol with actual column that has UID values (its not clear from your explanation above whether its TaskUID or ProjectUID or another column)
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