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1. JPA Mini Book

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Transform Your SQL Data into Charts Using jOOQ and JavaFX

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In the recent past, we’ve shown how Java 8 and functional programming will bring a new perspective to Java developers when it comes to functional data transformation of SQL data using jOOQ and Java 8 lambdas and Streams. Today, we take this a step further and transform the data into JavaFX XYChart.Series to produce nice-looking bar charts from our data. ...

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Good Microservices Architecture = Death of the Enterprise Service Bus (ESB)?

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These days, it seems like everybody is talking about microservices. You can read a lot about it in hundreds of articles and blog posts, but my recommended starting point would be this article by Martin Fowler, which initiated the huge discussion about this new architectural concept. This article is about the challenges, requirements and best practices for creating a good microservices architecture, and what ...

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Career Stagnation – Early Detection and Treatment

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Have you ever been on LinkedIn and stumbled on one of their work anniversary announcements? In case you haven’t, they look something like this: The announcements are generated by LinkedIn and typically followed by a predictable handful of likes, congratulatory words, and positive sentiments. I’m yet to see a comment that generally reflects my knee-jerk reaction to at least some of these posts. Longevity ...

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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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