Using java beans to return a record set

Hello,
I fairly new to JSP and what I'm trying to do is use Beans to connect to a database and then display the result on the JSP page. Can someone please post an example of how I would do this from a JSP page. I already have my JDBC code set up.
Thanks

Thanks for the feedback M
I have added the JSTL 1.1 library and used the Foreach components and data source components which now totally eliminate the need for beans altogether. :P
<c:forEach var="row" items="${deejays.rows}">
<tr onmouseover="this.bgColor='gold';"
onmouseout="this.bgColor='#FFFFFF';">
<c:forEach var="column" items="${row}">
<td>
<c:out value="${column.value}"/>
</td>
</c:forEach>
<td width="24%" align="center">
<input type="image" src="7af5.jpg" name="test" value="test"/>
</td>
<td width="15%">
<input type="radio" name="book1"/>
</td>
</tr>
</c:forEach>
</table><p align="left">
How and where do i add the beans in here now???

Similar Messages

How can I using java bean to insert new record

Hi everybody,
I'd some problem when I insert a record using java bean. When insert a record, the resultset executeUpdate return 0 anc cannot add record to database. Would you please tell me what's wrong in my code?
java bean
package miniproj;
import java.sql.*;
public class Register{
private String sql;
private String username;
private String usertype;
private String password;
private String blocknum;
private int floornum;
private String owner;
private int rows;
private String s;
// set parameter to database
public int setMember(){
try{
//load database driver
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
// Get a connection to the database
Connection sqlConn = java.sql.DriverManager.getConnection("jdbc.odbc:WFBS");
// Get a statement from the connection
Statement sqlStmt = sqlConn.createStatement();
sql = "INSERT INTO USERS(user_name, password) VALEUS ('aaa', 'aaa')";
// sql = "INSERT INTO USERS(user_name, password) VALEUS (" + user_name + "," + password + ")" ;
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// sqlRst.close();
sqlStmt.close();
sqlConn.close();
catch(SQLException se){
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// set user name method
public void setUsername(String name){
username = name;
// set passwrod method
public void setPassword(String pwd){
password = pwd;
// set block num mehtod
public void setBlockNum(String block){
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// set floor num method
public void setFloorNum(int floor){
floornum = floor;
// set owner method
public void setOnwer(String own){
owner = own;
// get user name method
public String getUsername(){
return username;
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public String getPassword(){
return password;
jsp code
<%@ include file="Header.jsp" %>
<%@ page errorPage="Error.jsp" %>
<jsp:useBean id="register" class="miniproj.Register" />
<jsp:setProperty name="register" property="*" />
User name : <%=register.getUsername()%><br>
Password : <%=register.getPassword()%><br>
<%
int i = register.setMember();
out.println(i);
%>
Thanks a lot
Chris

Seems to me that executeUpdate() would throw an SQLException, which in turn would get caught by your empty catch. The SQL keyword VALUES is misspelled. Put a 'se.printStackTrace()' in your catch to confirm this.

Search in form by using java bean or PJC.

hi all
i am confused because i do not know java bean to much,is it possible to create a search button with one text item in java bean to display all records
example:
if i enter dept 10 then it display all records related to dept 10?
is it possible?
if yes please cany anyone send me a demo?
here is my email add.
[email protected]
sarah

hi
Francois thanks for the link and its very useful and i am studying the codes and also i downloaded demos and run them its working fine and its very very nice.
i like java and trying to learn and its very useful.
why i want to use java bean because one of my friend her name is sheela she wants me to do it but i am failed i did not do it in java bean
so i thought lets try on the forum may be someone help u.
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sarah

Why use Java Beans?

Why should we use java beans?
Everybody says it is used to set the properties. What does this mean?
Can anyone give me a realtime scenario of the problems it can solve?
How does Spring framework utilize beans to solve problems? i.e wiring beans, declaring them in context file.

shalearns wrote:
Why should we use java beans?[http://java.sun.com/docs/books/tutorial/javabeans/index.html]
Everybody says it is used to set the properties. What does this mean?[http://java.sun.com/docs/books/tutorial/javabeans/whatis/index.html]
Can anyone give me a realtime scenario of the problems it can solve?[http://java.sun.com/docs/books/tutorial/javabeans/nb/index.html]
How does Spring framework utilize beans to solve problems? i.e wiring beans, declaring them in context file.[http://static.springframework.org/spring/docs/1.2.x/reference/beans.html]
~

Help : Unable to use Java Beans in Oracle forms 6i

Hi ,
I have been trying to run few sample code to understand how to use Java beans in oracle forms 6i .But have been largely unsuccessfull.
It will be great if somebody can provide me with some simple form( and java code )which uses java beans concept to give some data to the java program and receive some data from it . Pls inform me about the settings that need to be done.
If you guys know it then pls take the pains of writing a simple form and java code.
i hope somebody will respond because your reply is very necesary for me to proceed.
U can email me the code > [email protected]
Thanks in advance.

Thanks for your reply Francois.
Actually i am not facing problem understanding the programming technique.
I think the problem at my end is more of a cofiguration one.I am using forms version 6i
on oracle 8.
Every time i set the imlementation class property of the bean area it gives an error 13010 which translates to that "the class being mentioned is not extending the IView class".
The class i have written extends VBean so i am not sure why this error is occuring.
I think if oracle (correctly) finds the java class to use then i will be able to proceed.
Pls reply.
If you have some code that is working fine then pls send it to me.And also inform is some environment variables have to be set for its use.

Return a record set from a procedure

I am building an application for my company.
Before oracle I had used MS SQL Server for a long time.
I build a procedure as following
CREATE OR REPLACE PROCEDURE YBP.ReturnSet
-- Return a record set from a procedure
IS
BEGIN
SELECT * FROM fdbase;
END;
But the complier show me a error message:
<font color="#0000FF">PLS-00428 an INTO clause is expected in this SELECT statement</font>
I read the error details
<font color="#0000FF">"In PL/SQL, only a subquery is written without an INTO clause."</font>
But I know that this procedure can run well in <font color="#0000FF">MS SQL Server .</font>
How I can do this thing in Oracle
Any help will be appreciate!

I have a stored proc that is defined as
CREATE or REPLACE
PROCEDURE ABC
(linkid IN CHAR,
Year_in IN DATE,
Method_in IN CHAR,
Date_out OUT DATE,
average_out OUT NUMBER)
is
begin
.. Date_out := ...;
average_out := ...;
end;
another partially completed stored proc that returns a ref
cursor defined as follows:
create or replace package zzz
as
type cursorType is ref cursor;
end;
create or replace function test return zzz.cursortype
as
date_OUT date;
Average_OUT number;
l_cursor zzz.cursorType;
CURSOR temp_cur is
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'2',
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end;
inside test (which I need help completing), how can I refer to
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Returning Multiple Record sets to VB.

Is it possible using an Oracle 7 Driver connecting to a Oracle 9i database to return multiple record sets to screens written in VB? this is all a new area for me and the people I've spoken to so far seem to think it isn't possible - I refuse to believe this - someone must have done this before?!?!? Can someone confirm either way before I go down this path!!!!
Cheers

Sounds like you need a join statement in your SQL, is the
category and field info in different tables, then a join would be
perfect, also what language are you using. I know another way in
php you could use a while loop with another RS inside that gets the
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check out this:
http://www.w3schools.com/sql/sql_join.asp

Value cannot refresh using Java bean

When I use java bean to get a value. It suppose to refresh and show new value but it doesn't. So any code can help to resolve this issue.
here is my code
(Testing.jsp)
<html>
<head>
<title>Page 3</title>
<link rel=stylesheet type="text/css" href="auction.css">
</head>
<table class="mainBox" width="200">
<tr><td class="boxTitle" >
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</td></tr>
<tr><td>
<span class="headline">
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<jsp:getProperty name="testing2" property="user2"/>
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</span>
</td></tr>
</table>
</html>
The bean file which is Testing2.java
package com.jsp.newsys.testing;
import java.beans.*;
import java.util.*;
public class Testing2 extends Object implements java.io.Serializable {
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public Testing2() {
public void setUser(String user)
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I need to restart my tomcat everytime then only the value will refresh. Please help.
Message was edited by:
wesleygch
Message was edited by:
wesleygch
Message was edited by:
wesleygch

Your bean maybe have misspelling error
look at test and test2 on the jsp file. But I couldn't find any bean property test2 in your bean. Maybe you should try
${testing2.test} instead of ${testing2.test2}
I am a new bie also....:-)

Using java bean with jsp

hello friends,
i'm new to jsp. i want to create an html form that accepts username and a value from four radio buttons and display back the entered name and checked radio button's value using java bean.
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also when i use an additional field other than username the jsp page is showing error.
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thank you.

thank you, but i have a problem left. the case is like this.
i got the jsp and bean worked fine when i have a sinle input text field.
but when i added a second text field i recieved the following error.
javax.servlet.ServletException: basket.newbean.getUserPass()Ljava/lang/String;
     org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
     org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
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     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
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     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
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     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
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How to use Java Beans In JSTL?

Hi
I want to know how to use Java bean in JSTL
please explain this with giving any one example.
Thanks-
Swapneel

A bean is obtain by <jsp:useBean> tag nd once bean is obtained we can get its property by using getProperty tag.

Using Java Bean in JSP to show database record

I have links in my Tomcat container that if someone clicks on a specific link it should go to a Record page (Show.jsp) with all the values associated with a record from a database.
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LinkExample
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I created Java class file that has Database connection that works with a Java bean. I just dont know how to get the Show.jsp to work with the Java Bean and Java helper class file.
Here is what I have for Show.jsp and this is the part I have been working on the longest but cant get it to work because it doesnt seem to work with the database:<jsp:useBean id="user" class="num.UserDB"/>
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<jsp:setProperty name="user" property="*"/>
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First Name: <jsp:getProperty name="user" property="firstname"/><BR>
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package num;
import java.io.*;
import java.sql.*;
import java.util.*;
import num.User;
public class UserDB
public User getUser(String lastname)
User user = new User();
        try
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}My Java Bean that compiles here:
package num;
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private String firstname;
private String lastname;
private String city;
public User()
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public User(String firstname, String lastname, String city)
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public String getLastname()
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//more bean methods for all fields here

Sorry if I wasnt specific enough. I have a link that passes a value (field that is passed is called lastname) to a JSP where I want to show record info for that value that is passed.
My question is how do I show the database record info on Show.jsp for the lastname field value of Jones where I want to use a Java Bean and Database helper class in Show.jsp
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org.apache.jasper.JasperException: Cannot find any information on property 'lastname' in a bean of type 'num.UserDB'
.....My UserDB class:
public class UserDB
public User getUser(String lastname)
User user = new User();
        try
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     if(results.next() == true)
     results.next();
     user.setLastname(results.getString("lastname"));
     user.setFirstname(results.getString("firstname"));
                     user.city(results.getString("city"));
     catch(Exception e)
         System.out.println("Exception..." + e);
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}Bean class:
package num;
public class User
private String firstname;
private String lastname;
private String city;
public User()
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public User(String firstname, String lastname, Sting city)
      this.firstname = firstname;
       this.lastname = lastname;
this.city = city;
public String getFirstname()
          return firstname;
public void setFirstname(String firstname)
     this.firstname = firstname;
public String getLastname()
          return lastname;
public void setLastname(String lastname)
     this.lastname = lastname;
public String getCity()
          return city;
public void setCity(String city)
     this.city = city;

Using java beans to store records from recordset

Hi there,
I have been stuck on an issue with Java Beans in JSP for the last few days and cant get my head around it.
I am basically trying to retrieve all the records out of a resultset which pulls records from a table through a JDBC connection and store the records in a html table using the java beans getProperty tag.
Problem is that the first row of the recordset is being applied to every row in the table. I have tried implementing for loops to iterate through the result set but without any luck.
I need help urgently
Thank you

Thanks for the feedback M
I have added the JSTL 1.1 library and used the Foreach components and data source components which now totally eliminate the need for beans altogether. :P
<c:forEach var="row" items="${deejays.rows}">
<tr onmouseover="this.bgColor='gold';"
onmouseout="this.bgColor='#FFFFFF';">
<c:forEach var="column" items="${row}">
<td>
<c:out value="${column.value}"/>
</td>
</c:forEach>
<td width="24%" align="center">
<input type="image" src="7af5.jpg" name="test" value="test"/>
</td>
<td width="15%">
<input type="radio" name="book1"/>
</td>
</tr>
</c:forEach>
</table><p align="left">
How and where do i add the beans in here now???

Crystal Reports data connection using Java beans

Hi
My name is Bach Ong, i'm currently perform re-configuring Crystal reports 2008 to connect via
Java bean to Jboss server, this uses look up service on JBoss server. The connection is using Connect
look up using the properties:
java.naming.provider.url=jnp://emgsydapp121:10499
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
for file CRConfig.xml i put as follows:
<JDBCURL></JDBCURL>
<JDBCClassName></JDBCClassName>
<JDBCUserName></JDBCUserName>
<JNDIURL>jnp://emgsydapp121:10499</JNDIURL>
<JNDIConnectionFactory>org.jnp.interfaces.NamingContextFactor
y</JNDIConnectionFactory>
<JNDIInitContext>/</JNDIInitContext>
<JNDIUserName></JNDIUserName>
Can you advise us if this step is correct, and is there any
documentation that can guide us to right direction.
for Java testing in Eclipse using remote call class it is working suing the following code:
        Properties p = new Properties();
        p.put(Context.INITIAL_CONTEXT_FACTORY,
        "org.jnp.interfaces.NamingContextFactory");
        p.put(Context.URL_PKG_PREFIXES, "jboss.naming:org.jnp.interfaces");
        p.put(Context.PROVIDER_URL, "jnp://emgsydapp121:10499");
         InitialContext ctx = new InitialContext(p);
Date asAtDate = CrystalUtils.convertToDate("2014-01-01", CrystalUtils.relativeToToday(0), false);
     String asxCode = "BHP";
     ClosingPricesReportRequest criteria = new ClosingPricesReportRequest(asAtDate, asxCode);
     InitialContext context = new InitialContext(p);
     ClosingPricesReportService ejb = (ClosingPricesReportService) context.lookup(ClosingPricesReportService.REMOTE_JNDI);
     ClosingPricesReport report = ejb.createMTMClosingPriceReport(criteria);
     System.out.println(report.getClosingPrices()[0].getClosingPrice());
     testval = report.getClosingPrices()[0].getClosingPrice().toString();
     System.out.println(testval);
when i run the tes code the results as follow:
10:49:45,244 DEBUG [SecurityAssociation ] Using ThreadLocal: false
10:49:45,338 DEBUG [MicroSocketClientInvoker ] SocketClientInvoker[709446e4, socket://emgsydapp121:10473] constructed
10:49:45,338 DEBUG [MicroRemoteClientInvoker ] SocketClientInvoker[709446e4, socket://emgsydapp121:10473] connecting
10:49:45,338 DEBUG [MicroSocketClientInvoker ] Creating semaphore with size 50
10:49:45,338 DEBUG [MicroRemoteClientInvoker ] SocketClientInvoker[709446e4, socket://emgsydapp121:10473] connected
10:49:45,369 DEBUG [ClientSocketWrapper ] reset timeout: 0
10:49:45,650 DEBUG [InvokerRegistry ] removed SocketClientInvoker[709446e4, socket://emgsydapp121:10473] from registry
10:49:45,650 DEBUG [MicroSocketClientInvoker ] SocketClientInvoker[709446e4, socket://emgsydapp121:10473] disconnecting ...
10:49:45,650 DEBUG [SocketWrapper ] ClientSocketWrapper[Socket[addr=/10.137.2.40,port=10473,localport=64150].2cba5bdb] closing
37.99000000000000198951966012828052043914794921875
37.99000000000000198951966012828052043914794921875
Can anyone assist me in convert the above settings to get access by Crystal reports.
My attemp current are below:
public class CFDClosingPricesRpt extends CrystalReport {
    //Constructor
    public CFDClosingPricesRpt(){
        super(ClosingPriceBean.INSTANCE);
     * Returns the ResultSet for this report to Crystal.
     * @param asxCode
     * @param asAtDateString
     * @return
public ResultSet getNewReport(String asxCode, String asAtDateString) {
     try {
         Properties p = new Properties();
         p.put(Context.INITIAL_CONTEXT_FACTORY,
         "org.jnp.interfaces.NamingContextFactory");
         p.put(Context.URL_PKG_PREFIXES, "jboss.naming:org.jnp.interfaces");
         p.put(Context.PROVIDER_URL, "jnp://emgsydapp121:10499");
         //InitialContext ctx = new InitialContext(p);
         clearCachedReportBeans();
   Date asAtDate = CrystalUtils.convertToDate("2013-01-01", CrystalUtils.relativeToToday(0), false);
      asxCode = "BHP";
      ClosingPricesReportRequest criteria = new ClosingPricesReportRequest(asAtDate, asxCode);
      //ClosingPricesReportService ejb = (ClosingPricesReportService) ctx.lookup(ClosingPricesReportService.REMOTE_JNDI);
      ClosingPricesReportService ejb = (ClosingPricesReportService) ServiceLocator.getInstance().getService(ClosingPricesReportService.REMOTE_JNDI);
      ClosingPricesReport report = ejb.createClosingPriceReport(criteria);
      // assemble Crystal-friendly DTO
      Collection closingPrices = Arrays.asList(report.getClosingPrices());
      for (Iterator iter = closingPrices.iterator(); iter.hasNext();) {
                MBLXClosingPrice cp = (MBLXClosingPrice) iter.next();
                if (cp==null) continue;
                addReportBean(new ClosingPriceBean( report.getSuppliedDate(),
                            cp.getClosingPrice(),
                            cp.getAsxCode()));
} catch (Throwable x) {
      saveErrorMessage(x);
return getAsResultSet();
Thanks
Bach Ong

Hi Don Thanks for the reply.
I've was able to connect via Java beans and JNDI. But this one is going the JNDI of JBoss sever, which the JNDI already configure and working for Crystal reports v10.
Bach

Using Java Beans in Java Server Pages

Can we not use a method of Java Bean in a Java Server Page ?
I am trying to retrieve the user email from a java bean method "getUserEmail". I am instantiating the class, but when I try to use that in JSP tags, I am getting an error.
<jsp:useBean class = "formjavabean.application" id = "applicationId" scope = "session" />
<%@ page import="java.io.*, java.lang.*" %>
<%!
String user = applicationId.getUserEmail() ;
String f3 = "ftn03" ;
String f3not = "ftn03 file not uploaded";
...........I am failing in debugging that, can anyone help plz ?

Here is my whole code in parts:
First the head section:
<head>
<title> Fastran </title>
<jsp:useBean class = "formjavabean.application" id = "applicationId" scope = "session" />
</head>JSP part in the body section :
<%@ page import="java.lang.*, java.io.*" %>
<%!
private String f3 = "ftn03";
private String f3not = "ftn03 file not uploaded";
private String f7 = "ftn07";
private String f7not = "ftn07 file not uploaded";
private String f9 = "ftn09";
private String f9not = "ftn09 file not uploaded";
public String checkFile3()
    File ch3 = new File("C:\\JBoss\\jboss-4.0.5.GA\\bin\\Fastran\\ftn03") ;
    if (ch3.exists() == true)
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    else
        return f3not ;
public String checkFile7()
    File ch7 = new File("C:\\JBoss\\jboss-4.0.5.GA\\bin\\Fastran\\ftn07") ;
    if (ch7.exists() == true)
        return f7 ;
    else
        return f7not ;
public String checkFile9()
    File ch9 = new File("C:\\JBoss\\jboss-4.0.5.GA\\bin\\Fastran\\ftn09") ;
    if (ch9.exists() == true)
        return f9 ;
    else
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%>Java Script in the body section, using methods defined in the JSP part:
<script type="text/javascript">
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Upload Files: <input type="file" name="filefield" >&nbsp&nbsp<input type="submit" name="submit" value="Upload"><br>
<font color = "Red"><h5>(ftn03,ftn07, and ftn09)</h5></font><br><br><br>
Files on the server :<br><br>
<font color = "Green"><h5>
<%= checkFile3() %><br>
<%= checkFile7() %><br>
<%= checkFile9() %><br>
</h5></font>
<br><br><br><br><br><br><br><br><br>
<input type=button onClick="location.href='logintest.jsp'" value='Home'> <input type=button onClick="location.href=validate_file()" value='Proceed' ><br>
</form>Now try this:
Change <%! to <%, or try using bean method as:
String userEmail = applicationId.getUserEmail() ;..........and that is my problem. I would really appreciate any help, thanks

Database access design using java bean

Hi,
I am writing a JSP/servlet/Javabean based app. using MVC architecture.The database related logic is in java beans.
I want a generalized class/bean that can form a connection , execute the passed query and return the results.Does any one has any URLs or sample code to explain how to do this using introspection?
I would greatly appreciate any help as this design is very crucial for our application.
Thanks -
k

Please check the Cameleon Open Source project at http://www.must.de/cameleon.html if ti fits your needs.

Using java beans to return a record set

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