Greg, thank you the *concise* response :) care to elaborate? I can see how my design may fail, but how can a tool fail? If I choose Guid as my id, my approach might work. If I choose Identity (or some other db POID) this will definitely work. I'm hoping there's is 3rd option which I'm not aware of.
On Mar 24, 2:57 pm, Greg Young <[email protected]> wrote: > If you are spiking a greenfield app with CQRS using nhibernate or any > orm will lead to a complete and utter failure. > > > > On Wed, Mar 24, 2010 at 8:48 PM, Jason Meckley <[email protected]> wrote: > > I am spiking an example of CQRS as described by Udi. I am using rhino > > service bus to process commands and then fire events in the domain. > > I'm using a 'To Do List' for the spike > > > public void Consume(NewQuickTask message) > > { > > var task= > > session.Get<User>(message.UserId).AddTask(message.Title); > > domainEvents.Raise(new QuickTaskAdded{Task= task}); > > } > > > where domainEvents.Raise() will resolve all the Handles<T> from the > > container and execute against each one. for example > > class InsertNewQuickTaskIntoPersisentViewModel: > > Handles<QuickTaskAdded> > > { > > public void Handle(QuickTaskAdded arg) > > { > > var pvm = mapper.Map<Task, ListOfItemsToDo>(arg.Task); > > session.Save(pvm); > > } > > } > > > ListOfItemsToDo uses the assigned POID. this way it has the same id as > > the Task in the domain. Task uses HiLo POID. I know I can call > > session.Save(new Task()); to get the id, but I'm adding the Task to > > the User to avoid the explicit call to session. > > > however I need the id from Task to insert new records into the PVM > > (persistent view model). Is there another way to do this with HiLo? I > > could probably use Guid.Comb, but I prefer numbers since they are > > easier to read when logging and generating urls. I'm trying to avoid > > database POID strategies for now. > > > -- > > You received this message because you are subscribed to the Google Groups > > "nhusers" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group > > athttp://groups.google.com/group/nhusers?hl=en. > > -- > Les erreurs de grammaire et de syntaxe ont été incluses pour m'assurer > de votre attention -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
