Accessing JPF scoped form

Question

Hi,
Below is the requirement:
Display the strings "one","two","three" as default values in a text boxes which
are in a form /jsp. The form is called as "display" and the action associated
is "submit". On submit, i want to get the values of this text boxes (which user
can edit) in the JPF class's submit() method.
For this, following is done:
The form contains only one variable of type String array. and the name of variable
is "name" in the form class.
In the JPF class, declare "myform" variable(instance vrbl) and initialise the
form class in begin() method. Also, the array "name" is set to "one","two","three".
begin() returns Forward("success",myform).
submit() looks like
* @jpf:action form="myform"
* @jpf:forward name="success" path="ok.jsp"
protected Forward submit(SubmitForm form)
String name[] = form.getName();
for(int i=0;i<name.length;i++){
System.out.println("Value= " +name);
I am getting ArrayIndexOutofBounds exception for i>0.
The form class looks like
public String[] getName()
// For data binding to be able to post data back, complex types and
// arrays must be initialized to be non-null.
if(this.name == null || this.name.length == 0)
this.name = new String[1];
return this.name;
Question is:
1. Do i need to initialise the "name" array in forms getName() method to correct
size? (3 in this case)
2. The action of submit() contains "myform" which was already initilised with
correct array name. Why do i get ArrayIndexOutOfBounds?
thanks

Answer 1

The id of the upload_opp object is based on its position within the parent elements. in this case it would be something like uploadForm:upload_grp:_id0:upload_opp. The _id0 is generated because your panelGrid does not have an id, so JSF makes one up.
To reference the nested form, it would just be the id since it is not being handled by JSF.
It would probably be best for you to use the Apache MyFaces fileUpload component, or build your own custom component. That would make this page a bit more elegant and you don't have mixed html and jsf component code.
The alternative is to maybe write a javascript utility method like getElementWithId(...) to find an element that ends in the specified identifier.