DDD at Yahoo

bourgeois_neil: Event Sourcing and Save/Cancel (at 21:16:43)

Hi all, I've been working with DDD for a while now but am completely new to CQRS and Event Sourcing but believe it will solve a busload of problems I've Read More...

Published Thu, Mar 11 2010 7:16 PM by Yahoo Group

Nuno Lopes: Re: DCI vs SOM in static typed languages (at 20:31:41)

Yes, I have the same opinion. The trick is in modeling the event as an entity, a true collaborator not simply a structure containing data. There you have your Read More...

Published Thu, Mar 11 2010 6:31 PM by Yahoo Group

thecsharpmafia: creating an aggregate root from 2 related but separate entity types (at 19:52:50)

I am designing an application and have run into an issue when defining my aggregate roots. I have a class for Country and one for CountryRegion. Country Read More...

Published Thu, Mar 11 2010 5:52 PM by Yahoo Group

vvernon_shiftmethod: Re: Service layer required (domain-service or application-service, t (at 19:24:21)

You might ask how your I&A BC is being reached by the ultimate consumer. If, for example, the ultimate consumer is in a separate process (remote) and calling a Read More...

Published Thu, Mar 11 2010 5:24 PM by Yahoo Group

sebaszipp: Re: Service layer required (domain-service or application-service, t (at 18:58:16)

Domain services according to what the book says only interact with the corresponding ARs (also repositories) and might supply confirmation of results. Read More...

Published Thu, Mar 11 2010 4:58 PM by Yahoo Group

jbenami1: Service layer required (domain-service or application-service, take (at 18:01:20)

Is a service/application layer required? I'm writing an I&A management BC. It has an AccessService, which internally uses an AuthorizationService and an Read More...

Published Thu, Mar 11 2010 4:01 PM by Yahoo Group

sebaszipp: DCI vs SOM in static typed languages (at 16:56:42)

As long as I've read so far, DCI tries to isolate use case behaviour implementation from other use cases offering a root context point for starting the Read More...

Published Thu, Mar 11 2010 2:56 PM by Yahoo Group

Nuno Lopes: Re: DDD Immersion course - looking for feedback on blog series (at 11:21:50)

Hi, We divide development task into modeling, design and coding as separate activities. I think this is Wrong! I think they are distinct abilities not Read More...

Published Thu, Mar 11 2010 9:21 AM by Yahoo Group

vvernon_shiftmethod: Re: DDD Immersion course - looking for feedback on blog series (at 23:19:11)

Hi Paul, Those are some nice reviews of the course. Thanks for sharing! I wonder if you'd mind clarifying one point on Part #6, Design and Agile: "It starts Read More...

Published Wed, Mar 10 2010 9:19 PM by Yahoo Group

sebaszipp: Re: Architecture of domain to reporting store messages in CQRS (at 17:58:53)

... You should give a meaning in terms of domain to your events such as "StudentEnrolled" instead of a technical name that doesn't mean anything for an Read More...

Published Tue, Mar 9 2010 3:58 PM by Yahoo Group

jontycurtis: Architecture of domain to reporting store messages in CQRS (at 15:16:51)

I am implementing CQRS in a test application and am a little unsure about the best way to update the reporting store. Currently, in the application services, I Read More...

Published Tue, Mar 9 2010 1:16 PM by Yahoo Group

leypascua: Ruby on Rails, DTOs, and Using AR/Persistent/Domain Models in Views (at 05:25:58)

We have a little discussion on nullpointer.ph regarding this: Read More...

Published Tue, Mar 9 2010 3:25 AM by Yahoo Group

vvernon_shiftmethod: Re: Is CQRS Domain-Driven? (at 01:22:08)

Randy, Is this what you are saying? I use some sort of query (*QL or criteria) and get all the pieces that I need and perhaps map them (manually or otherwise) Read More...

Published Mon, Mar 8 2010 11:22 PM by Yahoo Group

vvernon_shiftmethod: Re: Is CQRS Domain-Driven? (at 01:15:10)

... Yeah, I felt the same way when I spelled "fair" as "fare" and clicked send :) ... I think this is facilitated because you have to deploy your domain Read More...

Published Mon, Mar 8 2010 11:15 PM by Yahoo Group

Randy Stafford: Re: Is CQRS Domain-Driven? (at 00:59:49)

After clicking "send", I wished I had added that data grids enable an innovative inversion of the traditional thinking. Instead of "getting the objects for Read More...

Published Mon, Mar 8 2010 10:59 PM by Yahoo Group

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