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Reactive HTML presentations using Reveal.js, Gist, and OpenShift

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Reveal.js is an HTML-base presentation framework. You just need a browser with CSS 3D transforms. That means Chrome, Firefox, Safari, Opera, and IE 10-11 are supported. It also provides a nice fallback for other legacy browsers. Check out a live demo yourself. This Tech Tip will show how to create Reveal.js-based presentations easily using Gist and OpenShift. Why Gist? This allows to separate presentation ...

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Make agents, not frameworks

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Ever since their introduction, Java annotations have become an integral part of the APIs of larger application frameworks. Good examples for such APIs are those of Spring or Hibernate where adding a few lines of annotation code implements quite complex program logic. And while one can argue about the drawbacks of these particular APIs, most developers would agree that this ...

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Monolithic Servers vs Microservices

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Introduction At the beginning applications were simple and small due to simple requirements. With time requirements and needs grew and with them our applications became bigger and more complex. That resulted in monolithic servers developed and deployed as a single unit. Microservices are, in a way, return to basics with simple applications that are fulfilling today’s needs for complexity by ...

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EE Servlet 3: Simple Form Processing

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Form handling in web application is like bread and butter for most Web developers. It will not be much use if we can not capture users input and process it. So I have included a simple FormServlet in my servlet3-example  that demonstrated few frequently used form inputs you might encounter. Here is how it looks like:         ...

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Building a HATEOAS API with JAX-RS and Spring

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In my previous blog post I showed how easy Jersey can be configured with Spring Boot. My exploration on Spring Boot and Jersey did not end and I investigated the possibility of using Spring HATEOAS along with Jersey in Spring Boot application. Spring HATEOS allows creating REST representations that follow the HATEOAS principle and (as of writing this article) has ...

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Docker orchestration using Fig

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Tech Tip #65 showed how to run a Java EE 7 application using WildFly and MySQL in two separate containers. It required to explicitly start the two containers, and link them using --link. This defining and controlling a multi-container service is a common design pattern in order to get an application up and going. Meet Fig – Docker Orchestration Tool. Fig allows to: ...

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