On Fri, Mar 6, 2009 at 10:57 PM, Alex Shneyderman <[email protected]> wrote: > I am trying to develop a command line interface to my CRUD > application. Command line is somewhat simple: cmd [param1 [param2]]. > Commands are registered as composites in application layer and will > talk directly to the domain layer. To lookup my command composites I > wanted to identify them by cmd tokens in assembly, since looking them > up by type is a bit awkward. > > Is there no way to do identifiedBy for composites?
Rickard's suggestion is workable, but I think not a recommended pattern. You should create a Factory (as Service) in the application layer that produces the instances that you are after. That will also hide the 'ugliness' of Composite instance creation, and nicely communicate what arguments are required at compile time, instead of runtime exception when missing required arguments are missing. Cheers Niclas -- http://www.qi4j.org - New Energy for Java _______________________________________________ qi4j-dev mailing list [email protected] http://lists.ops4j.org/mailman/listinfo/qi4j-dev
