This has been a very long time in coming, but finally we can create GraalVM native images that use Spring Boot (via Spring Boot 3.2) and Java 21's virtual threads (Project Loom)!

Why does all this matter? Each of these individual things, Project Loom, and GraalVM native images, offer compelling runtime characteristics. I've waited so very long for these to converge! Let's talk about them each in turn.

GraalVM Native Images

GraalVM is an OpenJDk distribution that provides some extra utilities, including a utility called native-image that does ahead-of-time (AOT) compilation on your code. We're…

Hi, Spring fans! Welcome to another installment of a Bootiful Podcast. In this interview, Josh Long (@starbuxman) talks to Spring Security legend and lead Rob Winch (@rob_winch), recorded live from SpringOne 2023!

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you? I just got back from another fabulous labor day weekend, and am headed to Oslo, Norway, for the fabulous JavaZone 2023 event. This will be my first time returning to lovely Oslo, Norway, since the pandemic! I can't wait! If you're there, don't hesitate to say "hey"!

• Spring Data JDBC - How To Maintain Your Database Schema
• I really like the Spring Cloud Alibaba's project's landing page: SpringCloudAlibaba
• The Java Landscape: A Month with Vaadin, OpenJDK Insights, and Java Enhancements
• This is the Beginning of the End of the N 1 Problem: Introducing Single Query Loading.
• a ton of the videos from the talks at SpringOne @ VMware Explore are already available and accessible now. Here's a link, for example, to my not terrible Bootiful talk
• Blog: Kubernetes 1.28: A New (alpha) Mechanism For Safer Cluster Upgrades
• …

Hi, Spring fans! In this installment Josh Long talks to Spring contributor and adjunct professor at Mines Paris, Daniel Garnier-Moiroux (@kehrlann), about the wild and wonderful intersection of all things Spring Security and Kubernetes, productized Spring Cloud Services, and more, recorded live at SpringOne 2023 from Las Vegas, Nevada!

TL;DR:

Starting with Spring Data JDBC 3.2.0-M2, Spring Data JDBC supports Single Query Loading. Single Query Loading loads arbitrary aggregates with a single select statement.

To enable Single Query Loading you need to call setSingleQueryLoadingEnabled(true) on your RelationalMappingContext.

In 3.2.0-M2, this works only for simple aggregates, consisting of an aggregate root and a single collection of other entities. It is also limited to the findAll, findById, and findAllByIds methods in CrudRepository. Future versions will improve on that. A final limitation is that the database you use has to support analytic functions (AKA window functions). All the officially supported databases except…

Hi, Spring fans! Look, it's Monday after the first in-person SpringOne of the 2020s and the first since the pandemic, and, being honest, I'm bushed! Vegas is a dizzying, sensational, overwhelming, exciting experience, and SpringOne is too. But it was worth it. The SpringOne show surpassed all expectations, so it was definitely worth it.

This overwhelming scale was nowhere more evident than in the keynote, which was standing room only. I can't really recap the entire show, but I do want to talk about some of the huge themes you'd have seen addressed in the keynote.

During the keynote, the good…

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm exhausted. Seriously. Last week was mental. If you need me, I'll be over sipping on a tea...

But, before that, there's a ton of things to cover from this last week, as always, and there's no rest for the curious, so let's get that out of the way first, shall we?

• I did a (personal) recap of my experience at SpringOne 2023, our annual tentpole event that we held coincadent with VMWare Explore 2023 in sunny Las Vegas, NV. If you were there, you know, if you weren't, well, read on...!
• Our friend Siva has a great blog looking at the new JdbcClient in Spring Framework 6.1
• I just realized that Spring Cloud Alibaba has a fancy landing page!
• A Bootiful Podcast: cloud native Chris Richardson
• From Buzz to Brilliance: Spring Kafka Unleashed for Asynchronous Microservices Magic
• …

This is the fifth article of a series about how to tackle various challenges you might encounter when using Spring Data JDBC. The series consists of:

1. Spring Data JDBC - How to use custom ID generation?

2. Spring Data JDBC - How do I make bidirectional relationships?.

3. Spring Data JDBC - How do I implement caching?

4. Spring Data JDBC - How Can I Do a Partial Update of an Aggregate Root?

5. Spring Data JDBC - How do I Generate the Schema for my Domain Model? (This article)

If you are new to Spring Data JDBC, you should start by reading its introduction and this article, which explains the relevance of aggregates in the context of Spring Data JDBC…

Hi, Spring fans! In this installment, Josh Long (@starbuxman) talks to original cloud native Chris Richardson on microservices, architecture, and more.