Hello, it's Dawid 👋
I'm a Software Engineer, with intermediate experience in backend development (Java, Spring), and little experience in frontend development (JavaScript, TypeScript, React). I'm specialized in developing distributed and scalable systems.
On this blog, you can find articles on topics related to technologies mentioned above, in form of tutorials, guides, opinions and personal experiences.
You can find me on: GitHub, Twitter, BlueSky and LinkedIn.
Check out more on about me page.
Recent posts
Database locking revisited
For me, it was hard to find a paper that would thoroughly explain to me how I can make database operations in my app thread-safe. Most of them focus on explaining @Transactional annotation and other framework mechanisms, but hardly ever elaborate on how it works in the database, or still believe that serializable transactions are executed sequentially (not true!). Here, I go into those details and explain on examples how you can leverage your database.
Read moreThread pools in Java
Concurrency is hard and deciding how to manage threads can be extremely challenging, or even undoable, if the code is a mess. Thankfully, Java shares a useful API to create different kinds of thread pools, to address various use cases. In this article, I describe the API and show, on examples, how you can take advantage of it.
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