• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Tim Cooke
  • Ron McLeod
  • paul wheaton
  • Jeanne Boyarsky
Sheriffs:
  • Paul Clapham
  • Devaka Cooray
Saloon Keepers:
  • Tim Holloway
  • Roland Mueller
  • Himai Minh
Bartenders:

Is HandlerManager really necessary?

 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hello everyone,

My partner and I have been writing a web app following the MVP architecture laid out here: https://developers.google.com/web-toolkit/articles/mvp-architecture

As this is our first foray into web development, GWT has been incredibly helpful and useful, but forgive my questions should they sound naive.

I'm trying to figure out why the HandlerManager is even necessary. The way we currently manage our app through the AppController is to keep a stack of Presenters and push new screens onto the stack and pop them off when you're done with them.

In the Contacts example Google provides in the above link, it seems the HandlerManager does 2 things when the event is called: write a history item, go to a new presenter.

Is this really necessary? If we end up making an app with 100 screens, we'll end up having 100 Event classes and 100 EventHandler classes. Seems to me like the views and presenters should be enough, while each presenter and decide which presenters it can go to.

Thanks in advance to anyone that can either confirm my feelings or give me a reason to use the HandlerManager.

Matt
 
Greenhorn
Posts: 15
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I don't really like the eventHandler either (Or the eventBus)
Could you explain a bit more how you are doing you AppController? it seens like a good idea.

 
Consider Paul's rocket mass heater.
reply
    Bookmark Topic Watch Topic
  • New Topic