From JUnit in Action, Third Edition by Catalin Tudose
This article dives into JUnit 5’s architecture.
From Spark in Action, Second Edition by Jean Georges Perrin
This article explores consuming records in files with Spark.
From JUnit in Action, Third Edition by Cătălin Tudose, Petar Tahchiev, Felipe Leme, Vincent Massol, and Gary Gregory
| From Vert.x in Action by Julien Ponge
This article talks about what verticles are and delves a bit into how they work and how to write them. |
From Get Programming with Scala by Daniela Sfregola
The final part of the article series digs into using “for-comprehension” to chain optional values together.
Six questions (+1 bonus question) for Nicolai Parlog, author of The Java Module System
Nicolai Parlog is a developer, author, speaker, and trainer. His home is codefx.org.
This part of the article series delves into using map to transform an object contained in an Option and how to chain optional values together using flatMap.
Chapters selected by Pierre-Yves Saumont
From Spark in Action, Second Edition by Jean-Georges Perrin
This article teaches you how to perform an aggregation using Apache Spark. You first look at the definition of an aggregation. You may already know and use aggregations in your job, and this might be a reminder for you. If this is the case, you can safely skim through it: Apache Spark’s aggregations are standard. The second part of this section shows you how to transform a SQL aggregation statement to Spark.
From Seriously Good Software by Marco Faella
This article delves into using memory storage space efficiently, thus making your software more efficient and resilient.