Mamadou Touré

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since Dec 27, 2007
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Recent posts by Mamadou Touré

Hi Folks,

I want to buy a new laptop windows 7 a core i7 quade core for ROR development, but I'm wondering if the 64bits is not incompatible with ROR ?? Will I have trouble with that ?

Regards
8 years ago
Thanks Paolo for these clarifications
8 years ago
I don't say that JEE needs EJBs to be robust, but the EJB containers can help a lot by providing automatically the ''ilities'', so the the developper can just concentrate on the business code
8 years ago
Hi Folks,

I'm a new on RoR, I'm just wondering is Ruby has an equivalent of EJBs to build robust business application ?
8 years ago
Welcome Paolo Perrotta

I hope I will be the lucky winner. I've just started to learn ruby (I'm a RoRholic)
8 years ago
I use TopLink. Now I don't even see the records that I have in others tables. It seems that my SELECT * FROM ..... doesn't work anymore, it returns nothing.
Hi,

I wrote en EJB that is called by a servlet, but when it comes to persiting the data, the operation is executed without error, but table is still empty (I don't see the record that has been persisted). I use TopLink as persistence tool. So could someone tell me what's wrong


here is my code
Hi Folks,

I'm trying to call a simple EJB3 from a servlet using the DI, I'm using glassFish, but I got the following error

Caused by: java.lang.RuntimeException: Cannot resolve reference Unresolved Ejb-Ref com.mamadou.CallEjb/salut@jndi: @null@com.EJBmamadou.ejb.EJBName1Local@Session@null
at com.sun.enterprise.deployment.util.EjbBundleValidator.accept(EjbBundleValidator.java:430)
at com.sun.enterprise.deployment.WebBundleDescriptor.visit(WebBundleDescriptor.java:1415)
at com.sun.enterprise.deployment.archivist.WebArchivist.validate(WebArchivist.java:188)
at com.sun.enterprise.deployment.archivist.ApplicationArchivist.openArchive(ApplicationArchivist.java:840)
at com.sun.enterprise.deployment.archivist.ApplicationArchivist.openArchive(ApplicationArchivist.java:794)
at com.sun.enterprise.deployment.backend.Deployer.loadDescriptors(Deployer.java:365)
... 10 more



Here is my servlet code


Here is my EJB implementation code code


Here is my EJB interface code
Is there a book dedicated to prepare the SCEA 310-052 ?, or could I just setlle for the Sun Certified Enterprise Architect for Java EE Study Guide (Exam 310-051) by Paul Allen and Joseph Bambara to prepare the 310-052 ??
What a terrific score !!!

you guys are hardworkers

congratulation, so what's next ?

9 years ago
EJB3 in Action + the specs, you'll be ready and confident for the exam for sure
That means, you have to refer to the specs. There are 3 pdf documents for the spec that you should download

1 - ejb-3_0-fr-spec-ejbcore
2 - ejb-3_0-fr-spec-persistence
3 - ejb-3_0-fr-spec-simplified

Here is the site where you can download them
http://jcp.org/aboutJava/communityprocess/final/jsr220/index.html

Good luck
As I said, there are some important details for the exam that you won't find in EJB3 in Action (Don't forget that EJB3 in Action is not intended for the SCBCD exam preparation). You'll see for instance when you buy the enthuware kit, there are several explanations that refer to the spec. so don't neglect the spec although EJB3 is an excellent book when you need to understand EJB technology.
Hi,

Study all of them, if you don't wanna have a bad surprise. They're a must
Hello Vasanthi hiremath

It took me almost 5 months, but I should say that I was not studying regularly, I started to study seriously 1 month before the exam.

I bought enthuware online on their site

Regards
9 years ago