Vyoms OneStopTesting.com - Testing EBooks, Tutorials, Articles, Jobs, Training Institutes etc.
OneStopGate.com - Gate EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopMBA.com - MBA EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopIAS.com - IAS EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopSAP.com - SAP EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopGRE.com - of GRE EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
Bookmark and Share Rss Feeds

Some Hands on with JEE6/JSF2 | Articles | Recent Articles | News Article | Interesting Articles | Technology Articles | Articles On Education | Articles On Corporate | Company Articles | College Articles | Articles on Recession
Sponsored Ads
Hot Jobs
Fresher Jobs
Experienced Jobs
Government Jobs
Walkin Jobs
Placement Section
Company Profiles
Interview Questions
Placement Papers
Resources @ VYOMS
Companies In India
Consultants In India
Colleges In India
Exams In India
Latest Results
Notifications In India
Call Centers In India
Training Institutes In India
Job Communities In India
Courses In India
Jobs by Keyskills
Jobs by Functional Areas
Learn @ VYOMS
GATE Preparation
GRE Preparation
GMAT Preparation
IAS Preparation
SAP Preparation
Testing Preparation
MBA Preparation
News @ VYOMS
Freshers News
Job Articles
Latest News
India News Network
Interview Ebook
Get 30,000+ Interview Questions & Answers in an eBook.
Interview Success Kit - Get Success in Job Interviews
  • 30,000+ Interview Questions
  • Most Questions Answered
  • 5 FREE Bonuses
  • Free Upgrades

VYOMS TOP EMPLOYERS

Wipro Technologies
Tata Consultancy Services
Accenture
IBM
Satyam
Genpact
Cognizant Technologies

Home » Articles » Some Hands on with JEE6/JSF2

Some Hands on with JEE6/JSF2








Article Posted On Date : Monday, September 6, 2010


Some Hands on with JEE6/JSF2
Advertisements

I have been doing JSF since 2004. I blogged for a long time on here about some of the shortcomings of JSF 1.x, but overall, have always sustained that a flawed framework is better than a tinkertoy one that is not really a framework at all (Struts). Seems like I have been waiting for JSF2 for ever. Finally, getting to put my hands on it, it feels pretty nice so far, though there are some things that are still the same.

The Weld getting started doc kind of sucks. They were showing a login screen, which I needed, so I figured I would follow along. Spent a bunch of time flipped over in a ditch getting database errors until I went to look at the Producer class from the stupid Widget class that's included in the JEE6 generated project and found that instead of annotating a public instance, they had a getter with a note about Weld closing the connection if you referenced the field (as is shown in their own getting started doc). Sure enough, as soon as I changed to that, things started working. Overall, I am still queasy about the degree of annotation-fatted addenda these JEE6 approaches entail, but I can see the logic of the approach. I have had my own way of doing Repository classes for some time. This looks pretty straightforward, though it does seem kind of weird to be calling things by names in an annotation (e.g. WidgetRepository) that are actually just the bare knuckle object that you would usually have behind such a component (the EntityManager).

The cynic would argue that DI spends a LOT of time trying to elegantly make things appear places magically, when in fact, the range of objects that require this type of delivery is probably extremely narrow, with the EntityManager being chief among them.

In doing the registration page, I had to have a password and confirm inputs and check that they matched, so I delved into JSR303 a bit. One of the big complaints about JSF 1.x was that validation was confined to a single component so broader validation required methods in the controller or a custom validator class. The annotations that have been added are useful, and there is one that allows you to even do things like scripting, but that kind of stuff does not get me excited: I would literally rather add a validation method to a controller than to put some ugly script code into the body of an annotation. It did occur to me though that something like DbC might have been nice here. Instead of wasting a bunch of cycles in Sillyland talking about closures in Java 7, there should have been a movement to really put basic contracts into Java with annotations. Would not be hard, then you could just define an invariant for conditions like these. (The new validation constraints look like they should be part of a generalized DbC mechanism already.)

The real star of the JEE6 adventure so far is Glassfish. I was kind of pissed when I first started out because i very quickly figured out that the Weld main page was getting a banner from a css file, so I found it and replaced it with my own banner image, but could not get the rig to see mine. It was very strange and I am not settled about the resolution, which was basically to change other elements on the page, then finally, it did change the banner. While doing so, I tested the amount of pillow fluffing the system required to recognize a css change, and it appears the answer is it doesn't automatically, but a mere publish (Command-Option-p) will suffice, but the best news is, that happens VERY quickly. Which brings me to the altar of another wish I've had forever. Whenever I have seen quick cycles like this, and gotten drunk on them, another part of my brain chimes in to remind me 'dude, the app has 3 or 4 forms in it; once it does something, it'll come back down to earth and you'll be wanting to go break things..' Have not read about this yet, but that is one of my great hopes for OSGi: that we don't have to put all interface components into one big pile of components or into one big war file for the one big project we are working on. (Maybe there is a maven archetype for a components project based on JSF2?)

It's also a relief to just have a bunch of the JEE6 baked into the server. We had lots of fun in the past flopping back and forth with conflicting version issues, or marking certain parts as provided when going out to JBoss, and back to inside the war targeting Tomcat.

Someone needs to figure out why the JSF train was in the tunnel for 6 years, then the Java world should just make do with what there is. JSF2 is a good framework, and whatever remaining ills it has should be easy to dispatch.






Sponsored Ads



Interview Questions
HR Interview Questions
Testing Interview Questions
SAP Interview Questions
Business Intelligence Interview Questions
Call Center Interview Questions

Databases

Clipper Interview Questions
DBA Interview Questions
Firebird Interview Questions
Hierarchical Interview Questions
Informix Interview Questions
Microsoft Access Interview Questions
MS SqlServer Interview Questions
MYSQL Interview Questions
Network Interview Questions
Object Relational Interview Questions
PL/SQL Interview Questions
PostgreSQL Interview Questions
Progress Interview Questions
Relational Interview Questions
SQL Interview Questions
SQL Server Interview Questions
Stored Procedures Interview Questions
Sybase Interview Questions
Teradata Interview Questions

Microsof Technologies

.Net Database Interview Questions
.Net Deployement Interview Questions
ADO.NET Interview Questions
ADO.NET 2.0 Interview Questions
Architecture Interview Questions
ASP Interview Questions
ASP.NET Interview Questions
ASP.NET 2.0 Interview Questions
C# Interview Questions
Csharp Interview Questions
DataGrid Interview Questions
DotNet Interview Questions
Microsoft Basics Interview Questions
Microsoft.NET Interview Questions
Microsoft.NET 2.0 Interview Questions
Share Point Interview Questions
Silverlight Interview Questions
VB.NET Interview Questions
VC++ Interview Questions
Visual Basic Interview Questions

Java / J2EE

Applet Interview Questions
Core Java Interview Questions
Eclipse Interview Questions
EJB Interview Questions
Hibernate Interview Questions
J2ME Interview Questions
J2SE Interview Questions
Java Interview Questions
Java Beans Interview Questions
Java Patterns Interview Questions
Java Security Interview Questions
Java Swing Interview Questions
JBOSS Interview Questions
JDBC Interview Questions
JMS Interview Questions
JSF Interview Questions
JSP Interview Questions
RMI Interview Questions
Servlet Interview Questions
Socket Programming Interview Questions
Springs Interview Questions
Struts Interview Questions
Web Sphere Interview Questions

Programming Languages

C Interview Questions
C++ Interview Questions
CGI Interview Questions
Delphi Interview Questions
Fortran Interview Questions
ILU Interview Questions
LISP Interview Questions
Pascal Interview Questions
Perl Interview Questions
PHP Interview Questions
Ruby Interview Questions
Signature Interview Questions
UML Interview Questions
VBA Interview Questions
Windows Interview Questions
Mainframe Interview Questions


Copyright © 2001-2019 Vyoms.com. All Rights Reserved. Home | About Us | Advertise With Vyoms.com | Jobs | Contact Us | Feedback | Link to Us | Privacy Policy | Terms & Conditions
Placement Papers | Get Your Free Website | IAS Preparation | C++ Interview Questions | C Interview Questions | Report a Bug | Romantic Shayari | CAT 2019

Fresher Jobs | Experienced Jobs | Government Jobs | Walkin Jobs | Company Profiles | Interview Questions | Placement Papers | Companies In India | Consultants In India | Colleges In India | Exams In India | Latest Results | Notifications In India | Call Centers In India | Training Institutes In India | Job Communities In India | Courses In India | Jobs by Keyskills | Jobs by Functional Areas

Testing Articles | Testing Books | Testing Certifications | Testing FAQs | Testing Downloads | Testing Interview Questions | Testing Jobs | Testing Training Institutes

Gate Articles | Gate Books | Gate Colleges | Gate Downloads | Gate Faqs | Gate Jobs | Gate News | Gate Sample Papers | Gate Training Institutes

MBA Articles | MBA Books | MBA Case Studies | MBA Business Schools | MBA Current Affairs | MBA Downloads | MBA Events | MBA Notifications | MBA FAQs | MBA Jobs
MBA Job Consultants | MBA News | MBA Results | MBA Courses | MBA Sample Papers | MBA Interview Questions | MBA Training Institutes

GRE Articles | GRE Books | GRE Colleges | GRE Downloads | GRE Events | GRE FAQs | GRE News | GRE Training Institutes | GRE Sample Papers

IAS Articles | IAS Books | IAS Current Affairs | IAS Downloads | IAS Events | IAS FAQs | IAS News | IAS Notifications | IAS UPSC Jobs | IAS Previous Question Papers
IAS Results | IAS Sample Papers | IAS Interview Questions | IAS Training Institutes | IAS Toppers Interview

SAP Articles | SAP Books | SAP Certifications | SAP Companies | SAP Study Materials | SAP Events | SAP FAQs | SAP Jobs | SAP Job Consultants
SAP Links | SAP News | SAP Sample Papers | SAP Interview Questions | SAP Training Institutes |


Copyright ©2001-2019 Vyoms.com, All Rights Reserved.
Disclaimer: VYOMS.com has taken all reasonable steps to ensure that information on this site is authentic. Applicants are advised to research bonafides of advertisers independently. VYOMS.com shall not have any responsibility in this regard.