Vlad Mihalcea High-performance Java Persistence Pdf ((exclusive)) Jun 2026

The N+1 problem occurs when a query fetches N entities, and then N additional queries are executed to load associated entities. The book provides several solutions to this, including: Entity Graphs Hibernate Batch Fetching 3. Database Batching

This foundational section covers database server internals, indexing, isolation levels, and critical JDBC driver peculiarities. Without these basics, no amount of Hibernate tuning will fix systemic issues.

Delaying connection acquisition until a SQL statement actually needs to execute prevents threads from holding idle connections during heavy business logic processing. 3. Mapping Types, Identifiers, and Relationships vlad mihalcea high-performance java persistence pdf

A primary bottleneck in any enterprise application is connection acquisition. Establishing a physical database connection is an expensive cryptographic and network intensive operation.

Master connection pool sizing, caching topologies, and locking mechanics. The N+1 problem occurs when a query fetches

High-Performance Java Persistence is a masterclass in data access optimization written by Vlad Mihalcea, a Java Champion and former Hibernate ORM core developer. Unlike superficial tutorials, this work bridges the gap between high-level Java abstractions (JPA/Hibernate) and low-level database mechanics (relational engines and SQL).

Optimizing Enterprise Data Layers: A Deep Dive into High-Performance Java Persistence Without these basics, no amount of Hibernate tuning

Buyers get access to a massive GitHub repository containing hundreds of optimized integration tests that you can run, modify, and clone into your own projects.