Table of Contents What is Liquibase?What is MongoDB?Setting up a local MongoDB instance on WindowsUse Liquibase with MongoDBPrerequisitesInstall supporting driversConnection configurationConnection testHands-on execution steps detailed1. Create project and add files2. Project structure in VS Code3. Lifecycle of Liquibase4. Verify the …
-
JC-AI Newsletter #3
The first and second newsletters introduced a 14-day cadence, and even though it is the holiday season for many of us, we are sticking to the promised period. The current newsletter vol.3, brings a collection of valuable articles focusing on …
-
Domain-Driven Design in Java: A Practical Guide
Table of Contents Understanding the “Airport” domainModeling the core Airport domain in JavaIdentifying aggregates and entitiesImplementing entities and value objectsBounded contexts and modularizationRepositories, domain services, and factoriesRepositoriesDomain servicesFactoriesApplication layer and integrationTesting and evolving the modelComplete DDD implementation source codeTesting scenarios …
-
Enforcing Governance in MongoDB Atlas with Resource Policies
Table of Contents What Are Resource Policies?Why Use Them?Available CapabilitiesApplying Resource Policies with Terraform🔐 Example 1: Allow clusters only on AWS🌐 Example 2: Block public IPs (0.0.0.0/0)🔒 Example 3: Enforce TLS 1.2 or higherValidation and Testing🚫 Attempt to create a …
-
Preparing for Spring Framework 7 and Spring Boot 4
Table of Contents 1. Built-in Resilience Feature2. Fluent JMS Client API3. Robust Api Versioning4. Unified Message Conversion5. Faster and Smarter Testing6. Modern Ecosystem Integration7. Hibernate ORM and JPA Upgrades8. Overhauled HttpHeaders API9. Support for Jackson 3.x10. Null Safety using JSpecify1. …
-
Semantic Caching with SpringBoot & Redis
Table of Contents 0. GitHub Repository1. Add the required dependencies2. Configure the Semantic Cache Vector Store3. Implement the Semantic Caching Service4. Integrate with the RAG ServiceStep 1: Clone the repositoryStep 2: Configure your environmentStep 3: Start the servicesStep 4: Use …
-
Pattern-matching across different languages
Table of Contents Java’s pattern matchingCharacteristics of the new switch syntaxScala’s pattern matchingKotlin’s pattern matchingPython’s pattern matchingRust’s pattern matchingConclusion Pattern matching is a major feature in software development. While pattern matching applies in several locations, its current usage is limited …
-
Run an Atlas Cluster Locally in Minutes
Run an Atlas cluster locally in minutes You no longer need a cloud account to try MongoDB Atlas features. Spin up a fully compatible local cluster in seconds, with no login, no credit card, and no friction. 🕒 Reading time: …
-
JC-AI Newsletter #2
Table of Contents In the first newsletter, we introduced a 14-day cadence, which means that this week it’s time for a new collection of articles from the fields of AI, LLM, Java and more.article: OpenAI CEO Sam Altman warns of …
-
Release V0.0.2 of Java DMX512 Library With Universes and USB-to-DMX support
Table of Contents Introduction of DMX UniversesUSB-to-DMX SupportDMX512 Java LibraryDMX512 JavaFX Demo ProjectNext Steps Earlier this month, I released V0.0.1 of my new Java library to interact with DMX512 devices using (optionally) the Open Fixture Library (OFL). After some more …
-
Why Java is Still Worth Learning in 2025: A Developer’s 25-Year Journey
After dismissing Java for eight years as a “passing trend for developers who couldn’t handle real programming,” one developer’s 25-year journey reveals how Java evolved from a language he distrusted to the foundation of his career, and why he believes it’s still one of the most valuable investments you can make in 2025.
