Hibernate Batch Processing Example

Date: 2017-08-21

This tutorial demonstrates Hibernate batch processing, a technique to improve database performance by executing multiple SQL statements in a single database round trip. It focuses on batch insert and update operations using JPA and Hibernate, addressing the OutOfMemoryException risk associated with large data uploads by avoiding excessive session caching. The tutorial guides you through creating a Maven project, setting up a MySQL database, and implementing the batch processing logic using Hibernate configuration (hibernate.cfg.xml) and Java code (AppMain.java, Product.java). The example uses flush() and clear() methods to write records directly to the database instead of caching them. Note that JDBC batching may not work for INSERT queries using @GeneratedValue(strategy = GenerationType.IDENTITY) with MySQL due to AUTO_INCREMENT.

Read more: https://examples.javacodegeeks.com/enterprise-java/hibernate/hibernate-batch-processing-example/