If two users try to buy the last item simultaneously, the second user gets OptimisticLockException —fail fast, retry safely. Searching for the Vlad Mihalcea High-Performance Java Persistence PDF is the first step toward maturity as a Java developer. You have realized that @Transactional is not magic and that ORMs are powerful but dangerous tools.
Get the official PDF, open to Chapter 5 ("Pagination and Filtering"), and never run Streaming without limits again. Disclaimer: This article is an educational review. Always support software authors by purchasing official copies of their work. High-Performance Java Persistence is a trademark of Vlad Mihalcea.
@EntityGraph(attributePaths = "comments") @Query("SELECT p FROM Post p WHERE p.id IN :ids") List<Post> findByIdsWithComments(@Param("ids") List<Long> ids); This generates a single SQL JOIN . Add these properties to your application.properties (Spring Boot): vlad mihalcea high-performance java persistence pdf
@Entity public class Product { @Id private Long id; private int stock; @Version private long version; // Hibernate checks this automatically }
Do not settle for outdated, illegal copies. Invest in the official digital edition. Keep it on your desktop. Use it every time you write a @OneToMany or tune a @Query . If two users try to buy the last
In the modern software engineering landscape, database access is almost always the bottleneck. You can have the fastest web framework, the most optimized CDN, and a microservices architecture ready to scale horizontally, but if your persistence layer is sluggish, your entire application feels broken.
The book is copyrighted by Packt Publishing (early editions) and later self-published by Vlad via his website. It is not legally available for free as a PDF from torrent sites or random GitHub repositories. Get the official PDF, open to Chapter 5
Mihalcea is a long-time contributor to the Hibernate project. He doesn’t just theorize; he runs benchmarks. Every technique in the book is backed by real-world testing and visual query plans.