Articles

Learn to Access Java Database With Jakarta Data

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Dealing with a database is one of the biggest challenges within a software architecture. In addition to choosing one of several options on the market, it is necessary to consider the persistence integrations. The purpose of this article is to show some of these patterns and learn about a new specification proposal, Jakarta Data, which aims to make life easier for developers with Java.

Understanding the Layers That Can Make Up Software

Whenever we talk about complexity in a corporate system, we focus on the ancient Roman military strategy: divide and conquer or divide et impera. To simplify the whole, we break it down into small units.

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EclipseCon 2021 Conference Report

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EclipseCon 2021 took place October 25-28. EclipseCon has long been a world-class conference for all things Eclipse. With the Java EE transition to the Eclipse Foundation, EclipseCon has become a truly significant event for Jakarta EE and MicroProfile developers. Due to the pandemic, the 2021 event was virtual (and free!). Jakarta EE unsurprisingly had a strong presence at the conference with talks on Jakarta EE 9.x, Jakarta EE 10, MicroProfile 4.x, MicroProfile 5, Jakarta Security, Jakarta Concurrency, Jakarta REST, Jakarta NoSQL, and MicroProfile GraphQL from speakers such as Tanja Obradovic, Ivar Grimstad, Josh Juneau, Otavio Santana, Emily Jiang, Steve Millidge, Arjan Tijms, Werner Keil, Ed Burns, Rudy De Busscher, and Graham Charters. 

I delivered two talks and participated in a panel at the conference focused on Java, Jakarta EE, and Azure. I also helped organize Community Day along with Werner Keil and Petr Aubrecht.

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Coding that sparks joy with Quarkus by Edson Yanaga (@yanaga)

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Does your heart beat faster when you’re developing your Java application? Does it spark joy when you’re coding? If not, then it’s time to leave some old ways behind. Join us on this live coding session and get familiar with Quarkus. You’ll learn to love how your old and new favorite APIs will start in a matter of milliseconds and consume tiny amounts of memory. Hot reload capabilities for development will give you instant sparks of joy! 

These live streamings are powered by xgeeks, a KI group company.

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Why You Should Join EclipseCon Community Day

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EclipseCon Community Day is on Monday, October 19 14:00 to 18:00 CET (the day before the start of the main EclipseCon conference). Community Day at EclipseCon has always been a great event for Eclipse working groups and project teams. This year both EclipseCon and Community Day is virtual and free. Space for Community Day is limited, so please register and save your spot soon.

We have a packed agenda centered on the Jakarta EE, MicroProfile and Cloud Native Java communities. If there is a set of very focused sessions you should attend on these topics, the agenda offers the one place this year to do so. The sessions are intended not only for learning, but also for the community to actively engage with some key leaders. Note, after you register for EclipseCon, you will need to reserve your spot for Community Day through the Swapcard platform (let me know if you run into any issues).

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MicroProfile CustomConfigSource With Database

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Using MicroProfile, let’s see how to deal with configuration properties in an application.

With the MicroProfile-Config API, there is a new and easy way to deal with configuration properties in an application. The MicroProfile-Config API allows you to access config and property values from different sources, like:

  • System.getProperties() (ordinal=400)
  • System.getenv() (ordinal=300)
  • all META-INF/microprofile-config.properties files

Developers can find a good introduction into the MicroProfile Config API here. Of course, developers can also implement your own config source. However, most of the examples are based on reading custom config values from an existing file, like in the example here.

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