Written by Vlad Mihalcea, a Java Champion and former Hibernate ORM core committer, High-Performance Java Persistence is widely considered the "gold standard" for mastering Hibernate, JPA, and database performance tuning.
| Aspect | Typical (Slow) Approach | High-Performance (Vlad’s Method) | | :--- | :--- | :--- | | | @OneToMany(fetch = FetchType.EAGER) | @BatchSize(size = 10) + DTO Projections | | Updates | Merging entire detached entities | Using @SQLUpdate for partial updates | | Bulk Operations | Looping over entityManager.persist() | Session.createNativeQuery(...) or JDBC Batch | | Primary Keys | IDENTITY (disables batching) | SEQUENCE (allows pooling & batching) | | Caching | Assume L2 cache is magic | Explicit cache concurrency strategies ( READ_WRITE vs NONSTRICT_READ_WRITE ) | vlad mihalcea high-performance java persistence pdf
Mastering Optimistic vs. Pessimistic locking. 🛠️ Practical Benefits of Vlad Mihalcea’s Approach Written by Vlad Mihalcea, a Java Champion and
6 — Query discipline and SQL mastery
Optimizing the way databases parse and execute queries. 2. JPA and Hibernate Internal Mechanics 🛠️ Practical Benefits of Vlad Mihalcea’s Approach 6
: Focuses on connection management, batch updates, statement caching, and transaction isolation levels.
"High-Performance Java Persistence" by Vlad Mihalcea is a comprehensive guide focusing on optimizing Java data access through in-depth coverage of JDBC, JPA, and Hibernate performance tuning. The book emphasizes practical techniques, including JDBC batching, DTO projections, and advanced caching, designed to resolve N+1 query issues and reduce database contention. You can find the book, including the PDF version, on the official Vlad Mihalcea website.