In one way or another, every developer has come in touch with an API. Either integrating a major system for a big corporation, producing some fancy charts with the latest graph library, or simply by interacting with his favorite programming language. The truth is that APIs are everywhere! They actually represent a fundamental building block of the nowadays Internet, playing ...
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Development Horror Story – Release Nightmare
Everyone has good stories about releases that went wrong, right? I’m no exception and I have a few good ones under my development career. These are usually very stressful at the time, but now me and my teammates can’t talk about these stories without laughing. History I think this happened around 2009. ...
Read More »My most useful IntelliJ IDEA keyboard shortcuts
Are you looking for ways to be more productive? It shouldn’t be a secret that performing actions using the keyboard instead of the mouse will save you time. If you think only about a single action it’s not a big deal. What if you use the same action multiple times a day? If you add up all these actions, they ...
Read More »Java EE 7 Batch Processing and World of Warcraft – Part 2
Today, I bring you the second part to my previous post about Java EE 7 Batch Processing and World of Warcraft – Part 1. In this post, we are going to see how to aggregate and extract metrics from the data that we obtained in Part 1. Recap The batch purpose is to download the World of Warcraft Auction House’s ...
Read More »SSL / TLS REST Server – Client with Spring and TomEE
When building a system, developers usually disregard the security aspects. Security has been always something very important to worry about, but it’s attracting even higher concerns than before. Just this year we had a few cases like the Heartbleed Bug or the CelebrityGate scandal. This has nothing to do with the post, but are just examples that security really matters ...
Read More »Annotations, Annotations Everywhere
Annotations became available with Java 1.5 in 2004, ten years ago. It’s hard to imagine our code without this feature. In fact, annotations were first introduced to relieve developers from the pain of writing tedious boilerplate code and make the code more readable. Think about J2EE 1.4 (no annotations available) and Java EE 5. Annotation adoption considerably simplified the development ...
Read More »JPA Entity Graphs
One of the latest features in JPA 2.1 is the ability to specify fetch plans using Entity Graphs. This is useful since it allows you to customise the data that is retrieved with a query or find operation. When working with mid to large size applications is common to display data from the same entity in different and many ways. ...
Read More »Development Horror Story – Mail Bomb
Based on my session idea at JavaOne about things that went terrible wrong in our development careers, I thought about writing a few of these stories. I’ll start with one of my favourites ones: Crashing a customer’s mail server after generating more than 23 Million emails! Yes, that’s right, 23 Millions! History A ...
Read More »Configure JBoss / Wildfly Datasource with Maven
Most Java EE applications use database access in their business logic, so developers are often faced with the need to configure drivers and database connection properties in the application server. In this post, we are going to automate that task for JBoss / Wildfly and a Postgre database using Maven. The work is based on my World of Warcraft Auctions ...
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