jon torresdal - Comments on Refactoring TryParse Into a Value Object

Comment by Jon Arild Tørresdal on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Jon Arild Tørresdal) — Fri, 14 Aug 2009 07:50:30 GMT

Paul, Yes! That's what happens when you code i Live Writer :-) Thanks for letting me know. I've fixed it.

Posted by: Jon Arild Tørresdal

Comment by Paul on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Paul) — Fri, 14 Aug 2009 07:35:53 GMT

typo? public ~~void~~ Amount(string amount) { _isValid = decimal.TryParse(amount, out _value); }

Posted by: Paul

Comment by Paul on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Paul) — Fri, 14 Aug 2009 07:07:58 GMT

Nice work Jon! This must be the most elegant solution I have seen so far!

Posted by: Paul

Comment by Einar Ingebrigtsen on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Einar Ingebrigtsen) — Mon, 27 Jul 2009 11:52:25 GMT

Not all objects would suit this, but in quite a few domains you have value objects that are truely value objects that can be discarded and used like structs would have. I need to explore it a little bit more before I have a proper conclusion. :) Late answer - I'm in a holiday mode these days, not so trigger-happy on the keys. One more week and I'm back in the rythm..

Posted by: Einar Ingebrigtsen

Comment by Jon Arild Tørresdal on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Jon Arild Tørresdal) — Thu, 23 Jul 2009 13:32:45 GMT

Einar, When you say "true value objects" do you mean it in the sense of DDD? I'm not sure I would implement all my value objects as structs. For one you loose polymorphism since structs are value types, secondly I usually find structs to be useful when I need a lot of that type created (like 1500 instances in a collection or something).

Posted by: Jon Arild Tørresdal

Comment by Einar Ingebrigtsen on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Einar Ingebrigtsen) — Thu, 23 Jul 2009 13:24:46 GMT

Nice! I'm exploring the same ideas these days, but want to look into using true value objects; structs. I'm not sure if there is a point to doing it with structs, other than they are in fact value objects - and the difference will become clearer.

Posted by: Einar Ingebrigtsen

Comment by Torbjørn Marø on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Torbjørn Marø) — Tue, 23 Jun 2009 16:32:25 GMT

+1 on stealing that code. Simple but very nice.

Posted by: Torbjørn Marø

Comment by Benny Thomas on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Benny Thomas) — Tue, 23 Jun 2009 16:22:06 GMT

Very nice way to do it

Posted by: Benny Thomas

Comment by Thomas Eyde on "Refactoring TryParse Into a Value Object"

suppressed@unknown.org (Thomas Eyde) — Tue, 23 Jun 2009 13:12:05 GMT

Sweet! I will steal that pattern.

Posted by: Thomas Eyde