Pro JPA 2 introduces, explains, and demonstrates how to use the Java Persistence API (JPA). JPA provides Java developers with both the knowledge and insight needed to write Java applications that access relational databases through JPA.

Authors Mike Keith and Merrick Schincariol take a handson approach to teaching by giving examples to illustrate each concept of the API and showing how it is used in practice. All of the examples use a common model from an overriding sample application, giving readers a context from which to start and helping them to understand the examples within an already familiar domain.

After completing the book, you will have a full understanding and be able to successfully code applications using JPA. The book also serves as a reference guide during initial and later JPA application experiences.Hands-on examples for all the aspects of the JPA specification, based on the reference implementation of this specification A special section on migration to JPA Expert insight about various aspects of the API and when they are useful Portability hints to provide increased awareness of the potential for nonportable JPA code What you'll learn Get started with enterprise applications using JPA 2 Get up to speed with objectrelational mapping and Entity Manager Learn and use queries and the query language (JP QL) Employ advanced objectrelational mapping techniques Use XML mapping files and learn other advanced techniques Package and deploy your Java persistence applications Test your Java persistence applications Migrate your Java persistence applications Who this book is for

The book generally targets enterprise and persistence developers who fall in one of three categories: Those who are new to persistence; we will present some background information and introduce these readers to the basic persistence concepts to bring them up to speed. Those who know and/or use existingORM persistence products such as Hibernate or TopLink. Those who have already used JPA and want to learn aboutnewer featuresintroduced byJPA 2, or have a good reference book to consult when they develop JPA applications.

In general, we assume that the reader is knowledgeable with Java, SQL, and JDBC, and has a little knowledge of J2EE. Table of Contents Introduction Getting Started Enterprise Applications Object-Relational Mapping Collection Mapping Entity Manager Using Queries Query Language Criteria API Advanced Object-Relational Mapping Advanced Topics XML Mapping Files Packaging and Deployment Testing Migration

EJB 3.0 sets a precedent. It has made huge advances in ease of development, and its drastically simplified programming model has been widely acclaimed.

-->Mike Keith-->, EJB 3.0 co-specification lead, and -->Merrick Schinariol-->, reviewer of EJB 3.0, offer unparalleled insight and expertise on the EJB 3.0 persistence specification, in this definitive guide to EJB 3.0 persistence technology. Expect full coverage and examination of the EJB 3.0 spec from these expert authors, including: The EntityManager API The new features of EJB Query Language (EJB QL) Basic and advanced object-relational mapping Advanced topics like concurrency, locking, inheritance, and polymorphism

Assuming a basic knowledge of Java, SQL, JDBC, and some J2EE experience, Keith and -->Schinariol--> will teach you EJB 3.0 persistence from the ground up. After reading it, you will have an in-depth understanding of the EJB 3.0 persistence API and how to use it in your applications.

Learn to use the Jakarta Persistence API and other related APIs as found in the Jakarta EE 10 platform from the perspective of one of the specification creators. A one-of-a-kind resource, this in-depth book provides both theoretical and practical coverage of Jakarta Persistence usage for experienced Java developers. Authors Lukas Jungmann, Mike Keith, Merrick Schincariol, Massimo Nardone take a hands-on approach, based on their wealth of experience and expertise, by giving examples to illustrate each concept of the API and showing how it is used in practice. The examples use a common model from an overarching sample application, giving you a context from which to start and helping you to understand the examples within an already familiar domain. After completing this in-depth book, you will have a full understanding of persistence and be able to successfully code applications using its annotations and APIs. The book also serves as an excellent reference guide. What You Will Learn Use Jakarta Persistence in the context of enterprise applications Work with object relational mappings (ORMs), collection mappings and more Build complex enterprise Java applications that persist data long after the process terminates Connect to and persist data with a variety of databases, file formats, and more Use queries, including the Jakarta Persistence Query Language (Jakarta Persistence QL) Carry out advanced ORM, queries and XML mappings Package, deploy and test your Jakarta persistence-enabled enterprise applications Who This Book Is For Experienced Java programmers and developers with at least some prior experience with Jakarta EE or Java EE platform APIs.