How to access nested list properties from Java Bean?

[membersound]

public class WebserviceRsp {       private List<Person> persons;}public class Person {   private List<Phone> phones;}public class Phone {   private String type; //business, home, private   private String number;}[/code]

 

Given the class hirarchie above: how can I print a list of all phone numbers where type = "home"?

Because: when I go to the dataset query builder tab, I can select my bean "WebserviceRsp", and then I can only select the direct fields, eg "persons". But I cannot select a field "person[0].phones.number".

I only want to get the first perons phone numbers is my example.

So, how could I create such a jasper variable that selects the first person item in the list, and then prints all values from a sublist?