@Entity public class Product { @Id private Long id; private int stock; @Version private long version; // Hibernate checks this automatically }
spring.jpa.properties.hibernate.jdbc.batch_size=50 spring.jpa.properties.hibernate.order_inserts=true spring.jpa.properties.hibernate.order_updates=true spring.jpa.properties.hibernate.jdbc.batch_versioned_data=true Mihalcea explains why order_inserts matters (grouping same-table inserts together). Never lose a concurrent update again. vlad mihalcea high-performance java persistence pdf
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. @Entity public class Product { @Id private Long
Enter —a name synonymous with database performance in the Java ecosystem. His book, High-Performance Java Persistence , has become the bible for backend engineers who refuse to let their database drag them down. Disclaimer: This article is an educational review
@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):
Do not settle for outdated, illegal copies.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 .