This book is a collection of developer code recipes and best practices for persisting data using Spring, particularly Spring Boot. The book is structured around practical recipes, where each recipe discusses a performance case or performance-related case, and almost every recipe has one or more applications. Mainly, when we try to accomplish something (e. g. , read some data from the database), there are several approaches to do it, but only one is the best choice, while the rest of them will add performance penalties. You'll see that in the end, all these penalties slow down the application. Besides presenting the arguments that favor a certain choice, the application is written in Spring Boot style which is quite different than plain Hibernate. Persistence is an important set of techniques and technologies for accessing and using data, and this book demonstrates that data is mobile regardless of specific applications and contexts. In Java development, persistence is a key factor in enterprise, ecommerce, cloud and other transaction-oriented applications. After reading and using this book, you'll have the fundamentals to apply these persistence solutions into your own mission-critical enterprise Java applications that you build using Spring. What You Will Learn Persist data in Java using Spring, Spring Boot, and Hibernate Enable dirty tracking Effectively shape many-to-many associations and decide between List and Set Stream data via MySQL Effectively fetch parent and association in a single SELECT Batch files via fork/join framework Work with collections and connections Handle queries, locking, schemas, Hibernate types, and more Who This Book Is ForExperienced Java developers that use Spring and Spring Boot.