Grails 1.0 Released: Productive Web App Development on the JVM
The Grails team and
G2One, the Groovy/Grails professional services company, have just released the
final 1.0 version of
Grails, the agile web application development stack, built on best of breed Open Source components such as the
Groovy dynamic language, the
Spring framework, and the
Hibernate ORM solution.
In this final version, Grails brings new features on board:
- GORM DSL for advanced Mappings:
The Grails Object Relational Mapping built on top of Hibernate adds a
Domain-Spcific Language that reduces the need to fall back to
traditional Hibernate mapping.
The DSL allows customization of
table and column names, inheritance strategy, second-level cache
configuration, Id generation strategy, composide Id support, eager/Lazy
loading, database indices, and custom Hibernate user types. - Support for easy to use Filters:
Grails has up until now supported interceptors that can be used within
controllers. Filters however offer a more powerful way of defining
cross cutting concerns.Filters can be applied to an entire controller,
only specific actions or entire URI spaces.
- Content Negotiation support:
Grails now supports content negotiation via the Accept/Content-Type
HTTP headers, a parameter or URI extensions. Mime types can be
configured in Grails' Config.groovy configuration file.
- REST support: JSON and XML requests can now be automatically unmarshalled via the params object.
More details can be found on the
official release notes.
Also worthy of notice beyond a static feature list, the Grails team worked on a
very complete and thorough new documentation to help Grails users get the best out of the framework.
If you haven't tried Grails yet, Scott Davis recently published an
excellent article to get you started with Grails on IBM DeveloperWorks.
Even though Grails wasn't released by the time,
many companies have successfully deployed Grails applications in production, as Graeme Rocher, Grails lead, explained in a
recent interview on InfoQ, such as major French
broadcasting and media companies, a top Human Resources company in the UK, or by SAP's
Composition on Grails
project which allows people to quickly build composite applications on
SAP NetWeaver 7.1. Startups have also picked up and leveraged Grails to
build scalable FaceBook applications with a
classifieds service (a
reverse classifieds concept), and a friendly application to
find friends and places for a beer, and some people also built an
innovative online community multi-media and story tool with Grails. Last but not least,
Enotions Ltd has built several Grails-powered sites for
different PepsiCo brands.
The blogosphere is abuzz with the announcement of the release. Paul Krill, columnist at
InfoWorld says:
With Grails, Java and Ruby developers get convention-based rapid development while leveraging existing knowledge and capitalizing on APIs Java developers have used for years.
While blogging about the release, Matt Raible
underlines that:
For companies that have invested a lot of time and money into the JVM as a platform, it seems like Grails is the clear winner over Rails.
Steven Devijver, one of the original Grails founders,
mentions on
GroovyZone, the new community news site dedicated to Groovy and Grails, that:
For [him] Grails is the ultimate rapid prototyping platform for Java.
[He's] built numerous applications by dropping in existing
Hibernate-configurated classes and generate scaffolding views. It gets
you started really quickly and helps you to focus on the application
you're building.
A key element in the agility of Grails comes from its choice of the mature and powerful
Groovy dynamic language as the core glue to tie all the layers together. Back in december,
Groovy 1.5 was released, making the headlines with its
new features, covered extensively on InfoQ, and performance improvements. Groovy has also been noticed to be becoming more popular and widespread on the
TIOBE index,
ranking Groovy as the 31st most popular language, coming from the 66th
rank 6 months earlier, and over 100th a year before. Also, Groovy has
proven to be a viable and mature platform on its own, as several
success stories have shown over the past few years, in various sectors:
- in financial institutions to handle million-dollars hedge funds or to customize advanced trader desktop applications,
- in a US Fortune 500 insurance company, Mutual of Omaha, where Groovy is used as a business language in a risk calculation engine for insurance policies,
- in a top major American credit card company,
- or
in the health sector, for the US National Cancer Institute, where
Groovy checks, fixes, and validates patient file details, and in
bioinformatics, for crunching genenome data sources.
If you want to learn more about both Groovy and Grails, beyoned the existing titles such as
Groovy in Action and
The Definitive Guide to Grails, new books are hitting the shelves in the coming months:
Beyond books, the
NoFluffJustStuff crew is organizing the
first major North American conference dedicated to Groovy and Grails, the
2G Experience. The conference takes place in Reston, Virginia, near Washington DC, on February 21-23.
As the site puts it:
You
will learn about rapid application development with Groovy / Grails and
network with other developers who are redefining the way web
applications are developed on the Java platform.
Among the numerous reknowned speaker and Groovy / Grails contributors, Venkat Subramaniam
speaks about his upcoming sessions
on Domain-Specific Languages in Groovy, and testing techniques in
Groovy, Neal Ford is interviewed on his slots about Design Patterns in
Groovyn and a comparison of JRuby and Groovy, and Jason Rudolf
gives more details on his presentations on advanced usages of the GORM layer.
(Of
course, it shouldn't go without note that TheServerSide Java Symposium
covers Groovy as well: one example is Scott Davis' presentation on
Metaprogramming (Or: The Groovy Way to Blow a Buttoned-Down Java Developer’s Mind). We look forward to seeing you there.)
原文地址：http://www.theserverside.com/news/thread.tss?thread_id=48360
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朝花夕拾——Groovy & Grails--------------------------------------------------------------------------
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Congrats and Thanks!
Congrats on 1.0 and thanks for all your hard work, I'm happily using grails.
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| | Message #247211Post replyPost replyPost replyGo to topGo to topGo to top |
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Thank you!
As a user since 0.4 I want to congratulate the entire G2One team behind
Grails for this very important release, thank you for your hard work.
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| | Message #247219Post replyPost replyPost replyGo to topGo to topGo to top |
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Re: Grails 1.0 Released: Productive Web App Development on the J
This is a great news, something I have been waiting for months.
Congratulations to the team. My experience with upgrade to RC4 from RC3
hadn't been the greatest and had issues in deployment to tomcat. Will
surely give this a try.
-Shailesh
Now, test management is a breeze
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| | Message #247264Post replyPost replyPost replyGo to topGo to topGo to top |
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Grails is worth a try for anyone
I've been using Grails for the past month.
I
did a project in Rails and was very disappointed with it, primarily
'ActiveRecord' and deployment. I was also disappointed that the plugins
had a high likelyhood of conflicting with each other and were in some
cases sensitive to the mode (dev/test/prod) due to the use of the
cache.
The language itself (Ruby) is gorgeous, but the lack of
any type of type checking made for great pains when making larger
'refactoring' type changes to the codebase.
I had been very
skeptical of grails, primarily because of the trouble with groovy in
the days when it was being inducted into the JCP.
However,
Grails is the most amazing development experience I have ever had.
Running as basically a light framework over Spring/Hibernate means it
has all the power you could ever want in a framework that is probably
about 2/3rds as pleasant as Rails, and much more deployable.
My
experience has got me wondering if 24 months from now Grails will be
the standard way to build Java web apps just like Hibernate superseded
EJB as the semi-official data access technology.
Grails (and Groovy) is an incredible technology that everyone should try!
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| | Message #247297Post replyPost replyPost replyGo to topGo to topGo to top |
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Step into the next Generation
I have been using Grails since 0.4 and it is awesome.
This is how i see it:
Ruby
on Rails a is prototype "proof of concept" that showed us how to do
Rapid web development. But it was never really taken seriously.
Grails
however is the industry strength version of that vision. Grails
provides all the core ideas that RoR gave us but just elegantly
packaged them into the robust world of Java.
10 reasons why i love Grails:
1: Its all just Java on a JVM under the hood.
2: Its all just Spring hibernate etc under the hood.
3: The Grails abstractions are simply amazing (GORM, Controllers, Domain Models)
4: All Grails projects have the same elegant structure. Hit the ground running familiarity.
5:
Its all about the details. Simply when building a web based application
99% of the things you want to do are standard thing done that have been
done a thousand times before. Grails makes is so unbelievably easy to
do them it is like coding with your eyes closed.
6: GORM is simply amazing.
7: Environment setup and configuration. Want production configuration. Simple as flicking a switch.
8: 99% of my time is spent on building my application not plumbing the framework.
9:
Once you are in the "groovy-grails zone" thing just flow like using the
force. Most things are are just one line away. Eg want you output in
XML then type "as xml" want it in JSON then type "as json"
10: It is fun. Web development is actually fun fun fun again.
Pete
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posted on 2008-02-11 16:41
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