Win a copy of Java Persistence with Spring Data and Hibernate this week in the Spring forum!
  • 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 ...
  • Campbell Ritchie
  • Ron McLeod
  • Tim Cooke
  • Paul Clapham
  • Liutauras Vilda
  • Junilu Lacar
  • Rob Spoor
  • Jeanne Boyarsky
Saloon Keepers:
  • Stephan van Hulst
  • Carey Brown
  • Tim Holloway
  • Piet Souris

Spring Roo and GWT

cecilia fava
Posts: 8
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I'd like to know how to use GWT with Spring Roo, I was trying Spring Roo with a tutorial but it generates skeleton for MVC, and GWT seems to use MVP.
Is it possible ?
Thanks!I'd like to win the book!
Ken Rimple
Posts: 63
Mac OS X Spring Ubuntu
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi, Cecilia

Since I'm a guest author, I have a news flash confession to make: I'm NO GWT expert. ;)

I tried, I really did. I spent lots of time with the Roo GWT add-on. Back in 2010, while I was writing the first drafts of the book, the add-on kept breaking and being fixed, and then it went to the MVP pattern, going through a lot of changes as well. So I focused on other parts of the book so that I could get it done.

An honest confession part 2 - I do not like MVP. It's too bloated with code in my opinion to easily comprehend. (ducking)

An honest confession part 3 - I had to back off of GWT for the book for the 1.2.1 release because it didn't work for me, no matter what I tried.

I am trying it right now on Roo 1.2.2, which I believe will work. The sequence is:

$ roo script expenses.roo
(lots of output)
$ mvn gwt:run

This let me build the app, except for when I got the GWT runner up, none of my browsers were able to run it - I have Safari, Firefox, and Chrome, and all of them recent versions. So, I'm bleeding edge on three browers? Strange.

So to run it without development mode, you can do mvn package jetty:run and then hit the server with a regular browser. That does work, but you lose the GWT runner.

Update - also, it seems to be buggy in Roo 1.2.2 - I filed a JIRA just now while testing before responding to you: it's here if you want to see whether I'm wrong or if a bug needs fixing:

(it just took my macbook air 5 minutes + to build the war file, most of which was setting up the permutations of web browsers, which you can cut down by editing some XML).


What you'll see is that the server portion contains about 10 Java class files. The MVP client portion is well over 150, and I'm not counting the generated XML files and images. For the client. It's huge. We are talking about three domain models. It may be a wonderful architecture, but there was no way to summarize that (let alone comprehend it) in 10-15 pages and fit a good detailed review into the book, especially when more important things needed to be addressed.

I know that Google I/O back in 2010 had a whole seminar on MVP - it's an hour long - so you could search that up. The problem is that with MVP installed, you seem to have to manually back off of that pattern or install GWT directly.
james gustard
Posts: 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi, running roo> expenses.roo will run the expenses roo script which sets up a GWT MVP based project.
We're all out of roofs. But we still have tiny ads:
The Low Tech Laboratory Movie Kickstarter is LIVE NOW!
    Bookmark Topic Watch Topic
  • New Topic