Access an object in a arraycollection set as dataprovider

Question

Hi,
I'm having trouble accessing an object, which is inside an
arraycollection and that arraycollection is bound to a datagrid
dataprovider.
One item in the arraycollection looks like this for example:
(string) value1="foo"
(string) value2="bar"
(object) myobject=

Answer 1

I am looking for a way to access an object in a bean
and make available to the page.
for example if i have a Bean called User and it
contains an attribute Called Company as an attribute
in User. Now I have User.getCompany(). and I can do
this
<%User user = request.getUser();
Company company = user.getCompany();
request.setAttribute("comp", company); %>
how do I do this with useBean ?You can access a JavaBean Object property of another JavaBean inside the JSP with the use of EL (Expression Language)
So if you are using JSP 2.0 or higher try this:
<jsp:useBean id="user" class="your.package.User" scope="request"/>
${user.company.id}I tested the above and it works.
Note that you need to set the Company object in the User object before trying to access it inside the JSP.
You can also set it in the JSP if you want, (before trying to access it), but its cleaner to do it in a Servlet.
Both User and Company must follow JavaBeans notation.
So in the above case the User object is something like this:
package your.package;
public class User{
   private Customer customer;
   public User(){}
   public Customer getCustomer(){
      return customer;
   public void setCustomer(Customer customer){
     this.customer = customer;
}And your Customer JavaBean is something like this:
package your.package;
public class Customer{
   private int id;
   public Customer(){}
   public int getId(){
     return this.id;
   public void setId(int id){
     this.id = id;
}