Vlad Mihalcea High-performance Java: Persistence Pdf Hot!
"High-Performance Java Persistence" by Vlad Mihalcea provides comprehensive, in-depth techniques for optimizing data access layers in Java applications using JDBC, Hibernate, and jOOQ. The book, frequently updated on Leanpub, covers critical areas including connection pooling, statement batching, and advanced database concurrency control. For more details, visit High-Performance Java Persistence - Leanpub
| Aspect | Typical (Slow) Approach | High-Performance (Vlad’s Method) |
| :--- | :--- | :--- |
| Fetching Children | @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) |
- Data access is the most expensive part of most backend systems; treat it as your scarce resource.
- Performance work isn’t micro-optimizing lines of code: it’s shaping architecture, controlling I/O, and aligning mental models between developers and DBAs.
- Measure first; guess later. Benchmarks, realistic load tests, and observability trump hunches.
Final Recommendation: Purchase the official PDF from the publisher or Vlad’s Gumroad store. Keep it in your cloud drive, on your tablet, and on your work desktop. Highlight the "Proxies and Lazy Loading" chapter. Bookmark the "Batch Updates" section. Then, watch your database queries transform from a liability into a competitive advantage. vlad mihalcea high-performance java persistence pdf
Part 4: Concurrency Control & Locking
Modern applications cannot rely on SELECT FOR UPDATE for everything. Mihalcea introduces:
7 — Instrumentation and feedback loops Data access is the most expensive part of
Amazon: While Amazon primarily sells the paperback and Kindle versions, the Kindle version provides a similar digital experience.
Identifier Generators: Why SEQUENCE is generally superior to IDENTITY for batching. Final Recommendation: Purchase the official PDF from the
Vlad Mihalcea Store (Full Bundles): You can buy the PDF/Ebook Edition or comprehensive video courses at Teachable.