FieldGroup Bind Collection?

I have a problem with the element FieldGroup. I have an Entitiy containing several strings and a collection. Binding the strings is not a problem, but i cannot bind the fields of the collection.

This is my Entity I’d like to bind using FieldGroup.

   private String name;
   private int sortCode;
   private List<Contact> contacts = new LinkedList<Contact>()

This is my Contact.class

private String phone;
private String email;

How can I bind for example field “phone” of entry 2?

In HTML i can access this field using “contacts[1]
.email”, but this doesn’t work in Vaadin.

Thanks for your help.

No built-in data binding will do that; you need to implement your own Property and use that when binding the object.