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java-interview-questions-answers

Simplifying JAX-RS caching with CDI

This post explains (via a simple example) how you can use CDI Producers to make it a little easier to leverage cache control semantics in your RESTful services The Cache-Control header ...
java-interview-questions-answers

Integrating CDI and WebSockets

Thought of experimenting with a simple Java EE 7 prototype application involving JAX-RS (REST), WebSockets and CDI. Note: Don’t want this to be a spoiler – but this post mainly ...
java-interview-questions-answers

Stress testing the OIM web (UI) layer

The default configuration in Oracle IDM reserves 20 threads dedicated for serving front end (UI) requests. This basically means that the application server has a pool of 20 threads ...
java-interview-questions-answers

Sneak peek into the JCache API (JSR 107)

This post covers the JCache API at a high level and provides a teaser – just enough for you to (hopefully) start itching about it ;-) In this post ….JCache overview JCache API, ...
java-interview-questions-answers

Do you really understand @WebService ?

SOAP web services are not cutting edge technology by any means – although it still has it’s place, REST based web services are offering tough competition. Anyway – this is definitely ...
java-interview-questions-answers

MDB != JMS and vice-versa

BasicsA Message Driven Bean (further referred to as MDB) is just another EJB like Stateless, Stateful or a Singleton. It’s specified using the @MessageDriven annotation. MDBs are ...
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Where can I run EJBs ?

EJBs are built for more than just a Java EE application server. They can also execute in a Java EE Web Profile container or plain Java SE environment (Java SE ! yeah – Easy Java Beans ...
java-interview-questions-answers

JAX-RS 2.0 : Server side Processing Pipeline

The inspiration for this post was the Processing Pipeline section in the JAX-RS 2.0 specification doc (Appendix C). I like it because of the fact that it provides a nice snapshot of ...
java-interview-questions-answers

Java EE Interceptors

History I think it’s important to take a look at the evolution of Interceptors in Java EE because of the simple fact that it started as an EJB-specific item and later evolved into ...
java-interview-questions-answers

What’s up with Java EE 8 ? (part 2)

Work on Java EE 8 is still in the initial phases and expected to catch pace in the upcoming year wherein we would see completion of Expert Group formation, more discussions around use ...
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