But simplicity ended where performance began.
The "High-Performance Java Persistence PDF 2.0" is an excellent resource for Java developers seeking to optimize their application's persistence layer. With its comprehensive coverage, practical examples, and actionable advice, this guide is well worth the investment. While it may assume prior knowledge and be dense in places, the benefits far outweigh the drawbacks.
int batchSize = 20; // The magic "20" for (int i = 0; i < 20000; i++) em.persist(new Product("Item " + i)); if (i > 0 && i % batchSize == 0) em.flush(); em.clear(); // Free memory from the 20 persisted entities
Splits data based on discrete values (e.g., Country, Region, or Status).
