RESTEasy or Jersey for JAX-RS study

[Yogs Kumar]

Hello Everyone,

I am preparing for the OCEJWSD certification.When it comes to JAX-RS which is the Reference Implementation that is better to study from a certification point of view.It is RESTEasy or Jersey?.

Thanks,
Yogs

[Ulf Dittmer]

Jersey is the RI. Since the objective is JAX-RS, though, I would imagine that any conforming implementation would be fine.

[Yogs Kumar]

Ulf Dittmer wrote:Jersey is the RI. Since the objective is JAX-RS, though, I would imagine that any conforming implementation would be fine.

Thanks for your response Ulf, so if i whose to study the RESTEasy RI,i wont be in any disadvantage for the certification correct?, what i mean to ask is will there be any questions in the certification specific to Jersey RI?

[Ulf Dittmer]

Well ... I'll let the experts answer that. The Exam Topics (which I'm sure you've read by now, short as they are) mention "Create a RESTful web service in a servlet container", amongst other topics. That could conceivably involve deployment steps that are implementation-dependent.

[Yogs Kumar]

Ulf Dittmer wrote:Well ... I'll let the experts answer that. The Exam Topics (which I'm sure you've read by now, short as they are) mention "Create a RESTful web service in a servlet container", amongst other topics. That could conceivably involve deployment steps that are implementation-dependent.

Ok Ulf, thanks for your response

[Himai Minh]

For this exam, focus on Jersey API. Someone mentioned in this forum that reading the latest Jersey User Guide (version 2.8) from Chapter 1 -5 will help.
But it is still ok to practice with RestEasy. The basic concepts of both RestEasy and Jersey are more or less the same.

[Ulf Dittmer]

For this exam, focus on Jersey API.

In other words, not the Jersey API, but the JAX-RS API :-)

[Frits Walraven]

The only disadvantage you have when studying RESTEasy for the WSD exam is for coding Web Service client. The exam topic "Create a web service client for a RESTful web service" assumes you have some basic knowledge coding a Jersey JAX-RS client.

For the exam you can stick to Jersey 1.x (as it conforms to JAX-RS v1.1). If you read the Jersey 2.x manual you willl learn a lot of stuff that is not part of the exam (as it conforms to JAX-RS 2.0).

Here is the link to the Jersey 1.18 manual.

Regards,
Frits

[Yogs Kumar]

Himai Minh wrote:For this exam, focus on Jersey API. Someone mentioned in this forum that reading the latest Jersey User Guide (version 2.8) from Chapter 1 -5 will help.
But it is still ok to practice with RestEasy. The basic concepts of both RestEasy and Jersey are more or less the same.

Thanks for your response Himai

[Yogs Kumar]

Frits Walraven wrote:The only disadvantage you have when studying RESTEasy for the WSD exam is for coding Web Service client. The exam topic "Create a web service client for a RESTful web service" assumes you have some basic knowledge coding a Jersey JAX-RS client.

For the exam you can stick to Jersey 1.x (as it conforms to JAX-RS v1.1). If you read the Jersey 2.x manual you willl learn a lot of stuff that is not part of the exam (as it conforms to JAX-RS 2.0).

Here is the link to the Jersey 1.18 manual.

Regards,
Frits

Thanks for your response Frits,that link to the guide is very useful,thanks again