From: "\"henq\" Date: 2003-05-17T17:43:37+09:00 Subject: Re: [OO design] Objects VS Datastructures Simon, Validation and formatting gives you more than enough reasons to write smart getters and setters. Some ideas for you: - If country is USA, than only one of the 52 (?) states are allowed - If country is USA tha format phone in standard US style - International address labels are complex. Streetnumber before or after street, for example. - If no postal address given, give visit address instead, and the other way around, (the latter unless p.o. box involved) -output the contact record in vCard 2.1 format for exchange with PDA. - The homepage URL attribute might auto-check the url form time to time (in a seperate thread, of course) and so on. - 'changed' timestamp, that is really smart and only is set if data has really changed (and not at every Save action) You may want to give your AddressBook class: - a persistent 'current selection' state - multiple level undo's (there are design patterns for that) Let us know when the beta is out! ~henq "Simon Vandemoortele" wrote in message news:Zcdwa.1038$1u5.25@afrodite.telenet-ops.be... > > The problem I see in this setup is that my 'Objects' are very passive; > they are not much more than datastructures with an attitude. Their whole > interface consists of setters and getters.