Comments on: Simulating Enums in Naked Objects

By: Adding support for Java 5 enums to Naked Objects | Domain Driven Design using Naked Objects

Sat, 27 Feb 2010 11:36:55 +0000

[...] support for Java 5 enums to Naked Objects In the previous posts we’ve seen how to simulate enums in Naked Objects 4.0. But it’d be nice if Naked [...]

By: Simulated Enums – supporting choices | Domain Driven Design using Naked Objects

Sat, 27 Feb 2010 09:08:05 +0000

[...] Simulating Enums in Naked Objects » var dzone_url = 'http://danhaywood.com/2010/02/27/simulated-enums-supporting-choices/'; [...]

By: danhaywood

danhaywood — Thu, 25 Feb 2010 22:13:56 +0000

Note: I’ve fixed the code listing slightly; using setUpAll() in the enum type causes an infinite loop, so instead I’ve renamed it to createAll()

By: danhaywood

danhaywood — Thu, 25 Feb 2010 05:57:27 +0000

We think we can support enums by writing a couple of further FacetFactorys. My analysis is that an enum is just a value type, which can also provide an out-of-the-box ChoicesFacet too. I’ll try to do some work on this and then post as another blog entry.

Cheers
Dan

By: danhaywood

danhaywood — Thu, 25 Feb 2010 05:55:59 +0000

It’d be easy enough to provide a static all() method in the StockType class that could then be used for choices() – ie to display the values in a drop-down. I’ll show that in a follow-up posting (I have several more things I want to show in this little example).

Cheers
Dan

By: Alexander

Alexander — Wed, 24 Feb 2010 13:03:49 +0000

Enums are really tricky moment in current NO (your captcha is killing me)

By: Giorgio Sironi

Giorgio Sironi — Wed, 24 Feb 2010 12:03:47 +0000

I remember you proposed using a choices() method to emulate enums. There are many differences?