Engineering With Java: Digest #11
Curated and Hand Picked Java and Spring Blogs.
In this edition of the Engineering With Java newsletter, we have hand-picked 10 interesting Java and Spring articles that are worth reading. Consider sharing your love by liking and sharing your feedback in the comment section.
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1. How to use Java Records with Spring Data JPA
The article explores the integration of Java Records with Spring Data JPA Repositories, emphasizing their coexistence despite the inherent immutability of Java Records conflicting with JPA entity requirements. While Java Records cannot be used directly as JPA entities, the article presents a strategy to leverage both features effectively.
2. Explore Java 15’s Hidden Classes with Code Examples
Hidden Classes operate in the background, shielded from external interference, and offer a solution for managing classes discreetly. They enhance encapsulation by creating classes not part of the standard public API, restricting access from outside the package.
3. Flexible Data Generation With Datafaker Gen
The article delves into bulk data generation scenarios in software development and testing, particularly focusing on generating 10,000 messages in JSON format for RabbitMQ. It compares options like developing a custom tool, using specific tools for databases or message brokers, and introduces Datafaker Gen as a viable option.
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4. How To Integrate NCache With JPA Hibernate for Caching in Spring Boot Applications
The article explores the integration of NCache with JPA Hibernate for caching in Spring Boot applications. Hibernate, a popular Object Relational Mapper (ORM) library for Java and Spring applications, simplifies database interactions. Caching in Hibernate is discussed, with support for two levels (L1 and L2). L1 cache operates within the application scope, while L2 cache, an external pluggable interface, enables caching data across microservices.
5. Spring Strategy Pattern Example
The article introduces the Strategy pattern in Spring, focusing on different methods of injecting strategies, from a list-based approach to an optimized map-based technique. Using examples from the Harry Potter series, it explains the Strategy Pattern's role in runtime switching of algorithms, enhancing code flexibility and adaptability without altering the core logic.
6. Java Microservices: A Comprehensive Implementation Guide
The guide explores Java Microservices as a key player in modern software architecture, offering agility, scalability, and resilience. It covers strategic decisions, optimal tools, and best practices for success in Java Microservices architecture.
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7. Java I/O vs. NIO — Understanding the Differences
The article explores the evolution of Java's input/output (I/O) mechanisms, comparing the traditional I/O with the New I/O (NIO) package. It emphasizes the shift in handling data transfer and manipulation for performance, scalability, and meeting modern computing demands. The discussion covers the basics of Java I/O and NIO, outlining their strengths, weaknesses, and optimal use cases.
8. Cloud Cost Optimization Is Hard, Java Can Help
The article discusses the challenges of cloud cost optimization, specifically for Java workloads, highlighting the growing gap between budgeted and actual spending. Key areas of overspending include cloud integration, security, and application modernization, with Java-based applications being a significant contributor.
9. Calling Custom Database Functions With JPA and Spring Boot
The tutorial covers various approaches to calling custom database functions within JPA and Spring Boot applications. It starts with a project setup using the H2 database and demonstrates the creation of a database function in H2 named SHA256_HEX, which processes a string through the SHA-256 hashing algorithm.
10. Best Practices for Database Migrations in Java for Beginners
This comprehensive article introduces beginners to best practices for handling database migrations in Java. It covers the basics of database migrations, emphasizing their critical role in maintaining application integrity, performance, and scalability. The article discusses the challenges associated with managing migrations, including version control, consistency, collaboration, and rollbacks.
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That’s a wrap for this week. If you have any feedback, requests, or improvements for this newsletter consider commenting so that we can work on improvements for the next one.