In need of advice on how to structure class

Question

Hi Guys
I am building a mail webapp. The user can send emails to multiple contacts. I have a table for the mail, mail_reciepiants and contacts. The mail content is in the "mail" table and the "mail_reciepiants" table contains the contact_id and the mail_id. I want to construct a class which gets the mail data from the "mail" table and all the reciepiants data from the mail_reciepiants table. The problem I am having is how can I have multiple contacts in one class ? I am thinking of creating a list for all the contacts and then insert that into each object. Does that sound like a good solution ? Or is there a better way of doing it ?
Edited by: shaolinf on Sep 5, 2008 5:27 PM

Answer 1

There are several ways to approach this, and the way you are thinking is a way.
public class Contact {
// Whatever data a contact instance needs
public class ContactList {
private ArrayList<Contact> contacts;
public void addContact(Contact c) {
if (c == null) throw new NullPointerException("Your errror message here");
if (contacts == null) contacts = new ArrayList<Contact>();
contacts.add(c);
// etc...
}