Comments for Domain Driven Design using Naked Objects

Comment on Accessing Domain Services from Entities by danhaywood

danhaywood — Wed, 25 Aug 2010 22:03:45 +0000

Hi Steve,
Thanks for the comment, and yes, you’re right that the object that requires the service isn’t necessarily going to use it to act it upon itself. For example, I suppose we might instead inject the EmailService into a Customer, and then ask the Customer to send the Communication.
Two things: first, adding another entity (like Customer) would have complicated the example, and second: in the NO applications, it is actually often the case that the entity being injected into acts upon itself. I guess it depends where the end-user would expect to see the functionality: do we ask the Communication to send itself to its recipient Customer, or do we ask the Customer to be sent the provided Communication. On the NO app that I’ve been working on, the Communication knows its recipient, so we choose the former.
Cheers
Dan

Comment on Accessing Domain Services from Entities by steve

steve — Wed, 25 Aug 2010 17:05:32 +0000

Hi,
Thanks for the nice review of existing techniques. Sorry for the late comment but I just want to share an idea about the given example.

IMHO, I don’t think that the given example is good to show these techniques. Why would a Communication send itself as an email? It is “Emailable” and that’s enough role and contract for it. It is in another entity or domain service that we are going to email the Communication using an EmailService. It is that entity or domain service that we need to inject the EmailService.
Does this make sense?

Thanks

Comment on Wicket Objects v0.1 … give it a try by danhaywood

danhaywood — Fri, 30 Jul 2010 10:42:31 +0000

Hi Peter,
Thanks for checking this out. Might be that we haven’t refreshed the applib in the NOF snapshot repo. It certainly should compile if you build nof 4.0.1-snapshot from source (I committed Reasons.java in rev 14701 on 22-Jul). Would you be happy to build NOF from source (http://www.nakedobjects.org/building.html says how to do so) and then give it another go? In the meantime, I’ll see about getting the snapshot updated.

It’d be great if you could come on board with a Vaadin viewer; I think it’s a great framework. So anything I can do to help… Please do contact me via email if nec; I don’t always check the comments section on my blog every day (and have been on vacation hence the gap on replying here).

Cheers
Dan

Comment on Wicket Objects v0.1 … give it a try by Peter

Peter — Tue, 27 Jul 2010 19:08:38 +0000

Hi Dan, I wanted try out the code, but I get a compile error. It seems the class org.nakedobjects.applib.util.Reasons (and 2 annotations) is missing from the NakedObjects 4.0.1-SNAPSHOT applib. Is it possible this class was (re)moved recently? Or might I be missing a dependency.

I’m afraid I don’t know enough about Naked Objects to get this to work on my own. I hope you can give me a nudge in the right direction.

Thanks in advance!

Comment on Groovy Objects, baby! by danhaywood

danhaywood — Mon, 19 Jul 2010 07:20:01 +0000

ok, done. I couldn’t find a reference in the Groovy Objects user guide to 0.0.1, but I could find 0.1. Whatever, it now says 0.1-SNAPSHOT.

Comment on Groovy Objects, baby! by danhaywood

danhaywood — Mon, 19 Jul 2010 06:40:07 +0000

Thanks, Mark … I’ll fix that stuff up.
– Dan

Comment on Groovy Objects, baby! by Mark Crocker

Mark Crocker — Mon, 19 Jul 2010 05:41:05 +0000

Naturally, as the corollary to Murphy’s Law dictates, all I had to do was demonstrate my ignorance publicly for me to find the answer…

First of all the version is 0.1-SNAPSHOT, not 0.0.1 like the user’s guide says.

And the URL is http://starobjects.sourceforge.net/m2-repo/snapshot/

1.7.2
1.2
1.7
0.1-SNAPSHOT

org.starobjects.groovy
Star Objects Groovy
http://starobjects.sourceforge.net/m2-repo/snapshot/

Comment on Groovy Objects, baby! by Mark Crocker

Mark Crocker — Mon, 19 Jul 2010 05:29:44 +0000

Where’s the repository that gapplib and gmetamodel can be found at?

The ones from the Groovy Objects page, http://sourceforge.net/projects/starobjects/m2-repo, produces a 400 Not Found error. The maven2 repository listed on the sister projects page, http://starobjects.sourceforge.net/m2-repo, has stuff in it, but not the gapplib or gmetamodel libraries.

Thanks;

Comment on Naked Objects MVC is released! by Tweets that mention Naked Objects MVC is released! | Domain Driven Design using Naked Objects -- Topsy.com

Fri, 09 Jul 2010 16:03:30 +0000

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Comment on Adding support for Java 5 enums to Naked Objects – part 2 by danhaywood

danhaywood — Sat, 03 Jul 2010 07:26:34 +0000

It was my stupid mistake – thanks, no fixed.
By the way, I’ve committed these changes to the trunk; so if you pull down the NOF trunk (http://nakedobjects.svn.sourceforge.net/svnroot/nakedobjects/framework/trunk) you’ll see them there. If you want to build the NOF, it’s a matter of:
cd pom ; mvn clean install ; cd .. ; mvn clean install