that's a nice and clean approach for simple services,
less code...
but builder methods should have access to auto-wiring also,
...
Davor Hrg
On 4/13/07, Howard Lewis Ship <[EMAIL PROTECTED]> wrote:
Yep, I'm in the middle of changes where you'll be able to specify a
class as a service and T5 IoC will perform injections o n the class'
constructor. It's inspired by Guice. So for a simple service, it will
look like:
public class MyModule {
public void bind(ServiceBinder binder) {
binder.bind(MyService.class, MyServiceImpl.class);
}
Your example, though, is one that will continue to operate the
traditional way (when there's more involved than dependency injection
via constructor).
On 4/12/07, Davor Hrg <[EMAIL PROTECTED]> wrote:
> I started converting a small project from hivemind to tapestry-ioc,
>
> this was just to compare experiences...
>
> most of it went fine, but when it came to auto-wiring, it got
> overcomplicated.
>
> auto-wiring works for parameters in module's build-methods,
> but this still means that I have to manually construct the service
> and set the dependencies provided in build method parameters.
>
> for example:
> public ICronService buildCron(
> RegistryShutdownHub hub,
> UserService userService,
> Log log,
> ){
> CronService cron = new CronService(hub, userService, log);
> cron.start();
> return cron;
> }
>
> this could be shorter (provided that container creates instance nad
> autowires properties)
>
> public ICronService buildCron(CronService cron){
> cron.start();
> return cron;
> }
>
>
> the problem here is not in ammout of writing
> (the latter code is little confusing also)
> the problem lies in the fact that if I add another dependancy:
> - create field
> - create setter
> this was enough in hivemind, but in tapestry-ioc
> I have to change the build method:
> - add an extra parameter
> - call the setter
>
> any thoughts on this ?
> any plans ?
>
> Davor Hrg
>
--
Howard M. Lewis Ship
TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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