Database on JAVAPRO International

EclipseStore 4.0.0 Beta 1: Build Java vector database Apps

Mon, 16 Feb 2026 12:19:02 +0000

The first beta of EclipseStore 4.0.0 is now available, marking a major evolution of the Java-nativ persistence engine. With this version, EclipseStore has integrated the high-performance vector similarity search engine JVector and therefore becomes an embedded Java vector database engine that runs within the same JVM process as your GenAI app. With EclipseStore 4, Java developers can now build powerful GenAI apps with pure Java, without the need to use external vector databases. This makes the entire development process of GenAI apps very convenient and significantly faster, simplifying testing and deployment.

Open J Proxy v0.3.0-beta: The High-Availability, Multinode, Cross-Language Leap Forward

Wed, 17 Dec 2025 12:00:01 +0000

By Rogerio Robetti - OJP Founder and Lead Developer
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The Open J Proxy (OJP) project has been busy—very busy. How busy? Try more than a hundred files changed, thousands of lines of code, and enough new distributed-systems machinery to make even seasoned architects clutch their coffee mugs in awe. If the previous v0.2.0-beta release was OJP discovering its superpowers, then v0.3.0-beta is OJP joining the Avengers.

In this article, we’ll walk through the most important enhancements, explain what they mean for Java developers, and crack a few jokes along the way (strictly at the expense of flaky servers).

Cutting Boilerplate and Complexity: Inside Jakarta Data

Wed, 22 Oct 2025 12:00:01 +0000

Learn what Jakarta EE11’s Jakarta Data specification offers and how it can change enterprise Java software development activities.

Vector Embedding in Java Applications: Gen-AI Functions Directly from the Database

Tue, 06 May 2025 11:30:01 +0000

Generative AI (GenAI) has rapidly advanced in recent years and is increasingly finding its way into practical software development. What was once considered a research topic is now becoming a tool for everyday developers — including in the Java space. Vector embeddings play a key role here: they enable functions like semantic search, text classification, or recommendation systems, opening up entirely new application possibilities.

But how can these technologies be integrated into existing Java applications without the need for complex frameworks or external cloud services?

Optimizing Java Performance: Caching with Core Java Instead of Complex Frameworks

Mon, 05 May 2025 07:00:02 +0000

Slow Java applications are a well-known problem in many projects: delays caused by ORM, complicated caching structures, and overloaded databases slow down performance. At JCON EUROPE 2025, the two-hour workshop “High-Performance Caching with Pure Java: Supercharge Your Sluggy Database Application” will show how to specifically solve these problems — exclusively with Core Java, without additional frameworks or cloud services.

Hands-on: Caching and Queries at Maximum Speed

Participants will learn how to develop a high-performance caching and query layer themselves — lean, memory-efficient, and directly in Java. The goal is to eliminate typical performance bottlenecks in database-based applications and increase system speed many times over.