JPA Pitfalls (12): Lazy Loading of Relationships in a Loop
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe a potential performance problem when loading relationships...
View ArticleJPA Pitfalls (13): EntityManager.merge Result
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe a common error when using EntityManager.merge. The...
View ArticleJPA Pitfalls (14): EntityManager.persist and Transactions
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe the result of EntityManager.persist inside and outside of...
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Yes, Rust has Garbage Collection, and a Fast One
Rust is getting more and more popular. Thus, a group of colleagues, including myself, evaluated it for half a day to build up our own opinion, if Rust is of strategic interest for us or not. We did...
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Building an ETL Pipeline with Open Source Tools
What Is ETL ETL stands for Extract, Transform, Load. Extraction is the process by which data from many sources and formats is collected. The data is then processed to allow for ease of storing and...
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Kotlin/JVM, Rust, and Randy Random
In this previous article I implemented a small, enterprisy benchmark to compare the concept of garbage collection used by Kotlin/JVM with the concept of Rust, which claims to not have any garbage...
View ArticleJPA Pitfalls (15): Merge DTO into Entity
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe a problem with unextected changes when using DTOs. A lot...
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Haskell is Faster than Rust! … Wait a Sec!
To evaluate the impact of memory management in Rust, I implemented a short benchmark in Rust and Kotlin. You can find all the details here and here. Measurements showed that Rust is roughly a factor...
View ArticleJPA Pitfalls (16): EntityManager.remove Does Not Remove Entity
This blog article is part of a “series of blog articles” about common pitfalls using JPA and ways to avoid them. In this article, we describe a problem with entites not beeing removed altough...
View ArticleCreating coherent Networks for docker development
Docker is a great tool for developing micro services that may be composed together in order to form a larger application. However, Docker containers run in a network apart from the host machine. That...
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