Tag Archives: javaee

Screencast: pushing a Java EE app to Oracle Cloud

Here is a screen cast to show case how you can easily push a Java EE application to Oracle Application Container Cloud from your command line   Overview start with a Java EE 7 Maven archetype — mvn archetype:generate -Dfilter=com.airhacks:javaee7-essentials-archetype modify the code — add a … Continue reading

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New release: REST assured with JAX-RS

    REST assured with JAX-RS is now updated for JAX-RS 2.1 – a new chapter has been added to cover its new features. You can read it on Gitbook or grab it via Leanpub Cheers!

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JAX-RS 2.1 SSE Client API example using Glassfish 5 on Docker

Along with the Server API for SSE, JAX-RS 2.1 (part of Java EE 8) also has an equivalent client side API Here is a quick peek – you can grab the project from Github To summarize we use a @Singleton EJB … Continue reading

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Java EE + Debezium

I just published a post – Debezium test drive. It uses Kafka and Java EE… check it out if this interests you Cheers!

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Validate JAX-RS query parameters

  It’s easy to validate parameters in JAX-RS using filters – ContainerRequestFilter to be specific. There are other options at your disposal e.g. using (CDI or EJB) interceptors, or injecting (HttpServletRequest using @Context) Scenario – Validate query parameter passed in by the … Continue reading

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kafEEne #2: Kafka & Concurrency Utilities

Yet another blog post of the kafEEne series – this time, its Java EE Concurrency Utilities in action along with Kafka. As usual, the code is on Github and you can refer to the README on how to get this up … Continue reading

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Consume from Kafka topics using Message Driven Beans

Thanks to the recently released Payara Kafka Connector, you can now consume messages from Kafka using Message Driven Beans! Here is a Docker based example for trying it out. Quick overview A @Singleton bean fires a producer process which run in … Continue reading

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kafEEne #1: Websocket & Kafka

Say hello  to kafEEne ! A blog series which will show Kafka and Java EE examples This one is about Kafka + (Java EE) Websocket API. Code is on Github and you can refer to the README on how to get this … Continue reading

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Redis CDI example….

Here is an example of a CDI producer for Redis using the Jedis (Java) client for Redis. Check out the project README to get this up and running…. Below is a quick summary Use of CDI Qualifier Two types of … Continue reading

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Quick tip: managing Stateful EJBs in WebSocket endpoints

@Stateful EJBs can be injected in WebSocket endpoints (supported by the WebSocket specification). There is an one-to-one association between the WebSocket client & endpoint (which is by default) as well as the injected Stateful EJB instance, which makes it an good candidate for storing … Continue reading

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