Java Persistence For Relational Databases

Java Persistence For Relational Databases Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Java Persistence For Relational Databases book. This book definitely worth reading, it is an incredibly well-written.

Java Persistence with Spring Data and Hibernate

Catalin Tudose
Java Persistence with Spring Data and Hibernate Book PDF

Author : Catalin Tudose
Publisher : Simon and Schuster
Page : 614 pages
File Size : 43,8 Mb
Release : 2023-04-18
Category : Computers
ISBN : 9781638351856

Get Book

Java Persistence with Spring Data and Hibernate by Catalin Tudose Pdf

Master Java persistence using the industry-leading tools Spring Data and Hibernate. In Java Persistence with Spring Data and Hibernate you will learn: Mapping persistent classes, value types, and inheritance Mapping collections and entity associations Processing transactions with Spring Data and Hibernate Creating fetch plans, strategies, and profiles Filtering data Building Spring Data REST projects Using Java persistence with non-relational databases Querying JPA with QueryDSL Testing Java persistence applications Java Persistence with Spring Data and Hibernate teaches you the ins-and-outs of Java persistence with hands-on examples using Spring Data, JPA, and Hibernate. The book carefully analyzes the capabilities of the major Java persistence tools, and guides you through the most common use cases. By comparing and contrasting the alternatives, you’ll find it easy to choose the right tool choice for your applications. You’ll learn how to make and utilize mapping strategies, about the different approach to transactions for both Hibernate and Spring Data, and even how to efficiently test Java persistence applications. The practical techniques are demonstrated with both relational and non-relational databases. Forewords by Dmitry Aleksandrov and Mohamed Taman. About the technology Effectively managing application data is essential for any serious application. Spring Data and Hibernate bridge the gap between object-oriented code and relational data stores, radically simplifying Java persistence. By implementing the Java Persistence API (JPA) standard, these powerful tools help you avoid common bugs related to state and application data storage. About the book Java Persistence with Spring Data and Hibernate explores Java persistence using industry-standard tools. Hands-on examples introduce object-relational mapping and guide you through different mapping strategies to suit your needs. Covering transactions, persistent application testing, and non-relational databases, this book is your go-to resource for managing data in Java applications. What's inside Mapping persistent classes, value types, and inheritance Creating fetch plans, strategies, and profiles Building Spring Data REST projects Querying JPA with QueryDSL About the reader For intermediate Java programmers. About the author Catalin Tudose has more than 20 years of experience in the Java community. Christian Bauer, Gavin King, and Gary Gregory are the authors of Java Persistence with Hibernate, Second Edition, on which this book is based. Table of Contents PART 1 - GETTING STARTED WITH ORM 1 Understanding object/relational persistence 2 Starting a project 3 Domain models and metadata 4 Working with Spring Data JPA PART 2 - MAPPING STRATEGIES 5 Mapping persistent classes 6 Mapping value types 7 Mapping inheritance 8 Mapping collections and entity associations 9 Advanced entity association mappings PART 3 - TRANSACTIONAL DATA PROCESSING 10 Managing data 11 Transactions and concurrency 12 Fetch plans, strategies, and profiles 13 Filtering data PART 4 - BUILDING JAVA PERSISTENCE APPLICATIONS WITH SPRING 14 Integrating JPA and Hibernate with Spring 15 Working with Spring Data JDBC 16 Working with Spring Data REST PART 5 - BUILDING JAVA PERSISTENCE APPLICATIONS WITH SPRING 17 Working with Spring Data MongoDB 18 Working with Hibernate OGM PART 6 - WRITING QUERIES AND TESTING JAVA PERSISTENCE APPLICATIONS 19 Querying JPA with Querydsl 20 Testing Java persistence applications

Java Persistence for Relational Databases

Richard Sperko
Java Persistence for Relational Databases Book PDF

Author : Richard Sperko
Publisher : Apress
Page : 351 pages
File Size : 54,7 Mb
Release : 2008-01-01
Category : Computers
ISBN : 9781430208167

Get Book

Java Persistence for Relational Databases by Richard Sperko Pdf

Sperko focuses on the overall problem of how to store the primary component of any Java application, the Java object, in the most common business tool: the relational database.

Java Persistence with Hibernate

Gary Gregory,Christian Bauer
Java Persistence with Hibernate Book PDF

Author : Gary Gregory,Christian Bauer
Publisher : Simon and Schuster
Page : 1053 pages
File Size : 53,6 Mb
Release : 2015-10-27
Category : Computers
ISBN : 9781638355229

Get Book

Java Persistence with Hibernate by Gary Gregory,Christian Bauer Pdf

Summary Java Persistence with Hibernate, Second Edition explores Hibernate by developing an application that ties together hundreds of individual examples. In this revised edition, authors Christian Bauer, Gavin King, and Gary Gregory cover Hibernate 5 in detail with the Java Persistence 2.1 standard (JSR 338). All examples have been updated for the latest Hibernate and Java EE specification versions. About the Technology Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. Persistence—the ability of data to outlive an instance of a program—is central to modern applications. Hibernate, the most popular Java persistence tool, offers automatic and transparent object/relational mapping, making it a snap to work with SQL databases in Java applications. About the Book Java Persistence with Hibernate, Second Edition explores Hibernate by developing an application that ties together hundreds of individual examples. You'll immediately dig into the rich programming model of Hibernate, working through mappings, queries, fetching strategies, transactions, conversations, caching, and more. Along the way you'll find a well-illustrated discussion of best practices in database design and optimization techniques. In this revised edition, authors Christian Bauer, Gavin King, and Gary Gregory cover Hibernate 5 in detail with the Java Persistence 2.1 standard (JSR 338). All examples have been updated for the latest Hibernate and Java EE specification versions. What's Inside Object/relational mapping concepts Efficient database application design Comprehensive Hibernate and Java Persistence reference Integration of Java Persistence with EJB, CDI, JSF, and JAX-RS * Unmatched breadth and depth About the Reader The book assumes a working knowledge of Java. About the Authors Christian Bauer is a member of the Hibernate developer team and a trainer and consultant. Gavin King is the founder of the Hibernate project and a member of the Java Persistence expert group (JSR 220). Gary Gregory is a principal software engineer working on application servers and legacy integration. Table of Contents PART 1 GETTING STARTED WITH ORM Understanding object/relational persistence Starting a project Domain models and metadata PART 2 MAPPING STRATEGIES Mapping persistent classes Mapping value types Mapping inheritance Mapping collections and entity associations Advanced entity association mappings Complex and legacy schemas PART 3 TRANSACTIONAL DATA PROCESSING Managing data Transactions and concurrency Fetch plans, strategies, and profiles Filtering data PART 4 WRITING QUERIES Creating and executing queries The query languages Advanced query options Customizing SQL

JavaTM Persistence with JPA

Daoqi Yang
JavaTM Persistence with JPA Book PDF

Author : Daoqi Yang
Publisher : Unknown
Page : 376 pages
File Size : 49,6 Mb
Release : 2010-03
Category : Computers
ISBN : 1432755854

Get Book

JavaTM Persistence with JPA by Daoqi Yang Pdf

This book introduces Java Persistence API 2.0, the latest Java technology on persisting Java objects into relational databases. It is part of Java EE 6.0 standards, but can be used in both Java SE and Java EE applications. This is a new Java persistence standard based on object-relational mapping and utilizing object-oriented features of Java. It is expected to gradually replace JDBC and proprietary object-relational mapping frameworks for most Java applications with database access.Using JPA (Java Persistence API) consists of two main tasks. The first task is to map Java classes and their fields/properties to relational database tables and columns. The second task is to manipulate (create, read, update, and delete) Java objects so that the underlying JPA implementation translates Java operations into JDBC calls and executes SQL statements behind the scene. JPA provides many easy-to-use features such as optimistic locking, pessimistic locking, lazy-loading, object caching, bean validation, and listeners for transactional events, which would be daunting tasks for a typical developer to implement when using JDBC. JPA makes software development fun and leads to improved productivity.The book is written for Java developers and architects who know Java programming, but want to learn this new and standard technology. It is also aimed at experienced JPA developers who may use this book as a reference. This book tries to be easy to understand and provides many useful code examples. Also, it tries to be complete in JPA coverage. It has a special chapter on JPA design patterns and performance tuning. The author hopes to provide a valuable book for novice and experienced JPA developers.http://YangDaoqi.info for information on source code download and errata.

Pro Jpa 2: Mastering The Java Persistence Api

Mike Keith,Merrick Schincariol
Pro Jpa 2 Mastering The Java Persistence Api Book PDF

Author : Mike Keith,Merrick Schincariol
Publisher : Unknown
Page : 532 pages
File Size : 53,6 Mb
Release : 2010-01-06
Category : Electronic
ISBN : 8184895178

Get Book

Pro Jpa 2: Mastering The Java Persistence Api by Mike Keith,Merrick Schincariol Pdf

Pro JPA 2 introduces, explains, and demonstrates how to use the new 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. 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.

Just Spring Data Access

Madhusudhan Konda
Just Spring Data Access Book PDF

Author : Madhusudhan Konda
Publisher : Unknown
Page : 61 pages
File Size : 50,6 Mb
Release : 2012
Category : Application software
ISBN : 1449339840

Get Book

Just Spring Data Access by Madhusudhan Konda Pdf

JDBC has simplified database access in Java applications, but a few nagging wrinkles remain{u2014}namely, persisting Java objects to relational databases. With this book, you{u2019}ll learn how the Spring Framework makes that job incredibly easy with dependency injection, template classes, and object-relational-mapping (ORM). Through sample code, you{u2019}ll discover how Spring streamlines the use of JDBC and ORM tools such as Hibernate, the Java Persistence API (JPA), and Java Data Objects (JDO). If you{u2019}re a Java developer familiar with Spring (perhaps through O{u2019}Reilly{u2019}s Just Spring tutorial) and want to advance your data access skills, this book shows you how. Learn how to use Spring{u2019}s basic and advanced data access tools Work with Spring{u2019}s JdbcTemplate class to separate non-critical code from business code Eliminate placeholder variables in your queries with the NamedParameterJdbcTemplate class Use Spring{u2019}s template classes to perform batch executions Operate inserts on database tables without writing any SQL statements Learn about Spring{u2019}s support for Hibernate as an object-relational-mapping tool Use JPA as a standards-based ORM{u2014}alone or with Spring support Move data from a relational to a non-relational database with JDO.

Pro JPA 2

Mike Keith,Merrick Schincariol,Jeremy Keith
Pro JPA 2 Book PDF

Author : Mike Keith,Merrick Schincariol,Jeremy Keith
Publisher : Apress
Page : 526 pages
File Size : 47,8 Mb
Release : 2011-01-28
Category : Computers
ISBN : 9781430219576

Get Book

Pro JPA 2 by Mike Keith,Merrick Schincariol,Jeremy Keith Pdf

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 hands–on 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 non–portable JPA code

Java Persistance With Hibernate

Christian Bauer,Gavin King
Java Persistance With Hibernate Book PDF

Author : Christian Bauer,Gavin King
Publisher : Dreamtech Press
Page : 880 pages
File Size : 47,8 Mb
Release : 2006-12
Category : Computers
ISBN : 817722719X

Get Book

Java Persistance With Hibernate by Christian Bauer,Gavin King Pdf

Java Persistence with Hibernate explores Hibernate by developing an application that ties together hundreds of individual examples. You'll immediately dig into the rich programming model of Hibernate 3.2 and Java Persistence, working through queries, fetching strategies, caching, transactions, conversations, and more. You'll also appreciate the well-illustrated discussion of best practices in database design, object/relational mapping, and optimization techniques.

Mastering Java Persistence API (JPA)

Nisha Parameswaran Kurur
Mastering Java Persistence API JPA Book PDF

Author : Nisha Parameswaran Kurur
Publisher : BPB Publications
Page : 261 pages
File Size : 43,6 Mb
Release : 2022-03-12
Category : Antiques & Collectibles
ISBN : 9789355511263

Get Book

Mastering Java Persistence API (JPA) by Nisha Parameswaran Kurur Pdf

Filled with sample case study, exercises, commonly faced issues/solutions, and important interview questions, this book is surely going to help developers to expand their skills in JPA. KEY FEATURES ● Covers every JPA capability with detailed examples. ● Explanation of popular JPA providers in detail as well as sample JPA code. ● Includes solutions geared toward developers, interview questions, and expert advice. DESCRIPTION 'Mastering Java Persistence API' is geared towards experiencing the functioning of JPA and the extent of its use in Java SE and Java EE applications. While the book's primary objective is to develop competence in JPA, it also takes a simpler approach to refresh readers on basic database management system concepts and how to design simple JPA applications. The book begins with the ideas like ORM, EJB CMP, and the difficulties associated with data conversion from a database to an application and vice versa are handled spontaneously. The book discusses Table, Row, Column, Cell, and various forms of Relationships and progress sequentially through the JPA concepts. It also discusses database processes such as identity generation, sequencing, locking, querying, persisting, caching, and transaction management in detail and emphasizes how JPA handles them. Further, the book covers the architecture and setup of two of the most extensively used JPA provider implementations (Hibernate and EclipseLink) in detail. Additionally, this book includes sample functioning code for connecting to a MySQL database. Each JPA functionality is illustrated with a code snippet, making it easier to modify these features as the application develops. This book teaches both beginners and seasoned professionals how to integrate JPA concepts in their employment through numerous problems and answers spanning each of the topics. WHAT YOU WILL LEARN ● Refresh your knowledge of relational database management system concepts in an object-oriented approach. ● Using JPA, you can create a table, row, column, key, query, data type, etc. ● Prepare for your first JPA project by working through the Mavenized Sample working code. ● Identify various ways for object-oriented representation of relationships. ● Acquire proficiency in various approaches for storing, caching, and transaction management. ● Discover the inner workings of JPA providers, Hibernate, and EclipseLink, as well as their architecture. WHO THIS BOOK IS FOR This book is aimed at Java developers who wish to master JPA and develop JPA-based applications enthusiastically. To get the most out of this book, you should have a basic familiarity with Java programming. TABLE OF CONTENTS 1. Java Persistence API and Object-Relational Mapping 2. Tables – Attributes and Embeddable Objects 3. Operations – Identity, Sequencing and Locking 4. Relationships – Types and Strategies 5. Query Infrastructure 6. Entity Manager – Persisting, Caching, and Transaction 7. Hibernate and EclipseLink 8. Appendix Part 1: JPA Advanced Topics 9. Appendix Part 2: Sample JPA Application and Questions

Pro JPA 2 in Java EE 8

Mike Keith,Merrick Schincariol,Massimo Nardone
Pro JPA 2 in Java EE 8 Book PDF

Author : Mike Keith,Merrick Schincariol,Massimo Nardone
Publisher : Apress
Page : 771 pages
File Size : 52,6 Mb
Release : 2018-02-01
Category : Computers
ISBN : 9781484234204

Get Book

Pro JPA 2 in Java EE 8 by Mike Keith,Merrick Schincariol,Massimo Nardone Pdf

Learn to use the Java Persistence API (JPA) and other related APIs as found in the Java EE 8 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 JPA usage for experienced Java developers. Authors Mike Keith, Merrick Schincariol and 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 Pro JPA 2 in Java EE 8, you will have a full understanding of JPA 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 the JPA 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 Java Persistence Query Language (JPQL) Carry out advanced ORM, queries and XML mappings Package, deploy and test your Java persistence-enabled enterprise applications Who This Book Is For Experienced Java programmers and developers with at least some prior experience with J2EE or Java EE platform APIs.

High-Performance Java Persistence

Vlad Mihalcea
High Performance Java Persistence Book PDF

Author : Vlad Mihalcea
Publisher : Vlad Mihalcea
Page : 128 pages
File Size : 47,9 Mb
Release : 2016-10-12
Category : Electronic
ISBN : 973022823X

Get Book

High-Performance Java Persistence by Vlad Mihalcea Pdf

A high-performance data access layer must resonate with the underlying database system. Knowing the inner workings of a relational database and the data access frameworks in use can make the difference between a high-performance enterprise application and one that barely crawls. This book is a journey into Java data access performance tuning. From connection management, to batch updates, fetch sizes and concurrency control mechanisms, it unravels the inner workings of the most common Java data access frameworks. The first part aims to reduce the gap between application developers and database administrators. For this reason, it covers both JDBC and the database fundamentals that are of paramount importance when reducing transaction response times. In this first part, you'll learn about connection management, batch updates, statement caching, result set fetching and database transactions. The second part demonstrates how you can take advantage of JPA and Hibernate without compromising application performance. In this second part, you'll learn about the most efficient Hibernate mappings (basic types, associations, inheritance), fetching best practices, caching and concurrency control mechanisms. The third part is dedicated to jOOQ and its powerful type-safe querying capabilities, like window functions, common table expressions, upsert, stored procedures and database functions.

Java Database Best Practices

George Reese
Java Database Best Practices Book PDF

Author : George Reese
Publisher : "O'Reilly Media, Inc."
Page : 304 pages
File Size : 52,5 Mb
Release : 2003-05-14
Category : Computers
ISBN : 9781449365639

Get Book

Java Database Best Practices by George Reese Pdf

When creating complex Java enterprise applications, do you spend a lot of time thumbing through a myriad of books and other resources searching for what you hope will be the API that's right for the project at hand?Java Database Best Practices rescues you from having to wade through books on each of the various APIs before figuring out which method to use! This comprehensive guide introduces each of the dominant APIs (Enterprise JavaBeans, Java Data Objects, the Java Database Connectivity API (JDBC) as well as other, lesser-known options), explores the methodology and design components that use those APIs, and then offers practices most appropriate for different types and makes of databases, as well as different types of applications.Java Database Practices also examines database design, from table and database architecture to normalization, and offers a number of best practices for handling these tasks as well. Learn how to move through the various forms of normalization, understand when to denormalize, and even get detailed instructions on optimizing your SQL queries to make the best use of your database structure. Through it all, this book focuses on practical application of these techniques, giving you information that can immediately be applied to your own enterprise projects.Enterprise applications in today's world are about data-- whether it be information about a product to buy, a user's credit card information, or the color that a customer prefers for their auto purchases. And just as data has grown in importance, the task of accessing that data has grown in complexity. Until now, you have been left on your own to determine which model best suits your application, and how best to use your chosen API. Java Database Practices is the one stop reference book to help you determine what's appropriate for your specific project at hand. Whether it's choosing between an alphabet soup of APIs and technologies--EJB, JDO, JDBC, SQL, RDBMS, OODBMS, and more on the horizon, this book is an indispensable resource you can't do without.

Understanding JPA 2. 2

Antonio Goncalves
Understanding JPA 2 2 Book PDF

Author : Antonio Goncalves
Publisher : Unknown
Page : 258 pages
File Size : 55,8 Mb
Release : 2019-05-17
Category : Electronic
ISBN : 1093918977

Get Book

Understanding JPA 2. 2 by Antonio Goncalves Pdf

Applications are made up of business logic, interaction with other systems, user interfaces etc. and data. Most of the data that our applications manipulate have to be stored in datastores, retrieved, processed and analysed. If this datastore is a relational database and you use an object-oriented programming language such as Java, then you should have a look at JPA. JPA is an Object-Relational Mapping tool that maps Java objects to relational databases and allows query operations. In this fascicle, you will learn Java Persistence API, its annotations for mapping entities, as well as the Java Persistence Query Language and entity life cycle and a few advanced topics such as integrating JPA with other frameworks (Bean Validation, JTA, CDI, Spring).

Java Server Programming Java Ee5 Black Book, Platinum Ed (With Cd)

Kogent Solutions Inc.
Java Server Programming Java Ee5 Black Book Platinum Ed With Cd Book PDF

Author : Kogent Solutions Inc.
Publisher : Dreamtech Press
Page : 1704 pages
File Size : 54,5 Mb
Release : 2008-07
Category : Java (Computer program language)
ISBN : 8177228358

Get Book

Java Server Programming Java Ee5 Black Book, Platinum Ed (With Cd) by Kogent Solutions Inc. Pdf

Many bookstores offer numerous choices of books on Java Server Programming; however, most of these books are intricate and complex to grasp. So, what are your chances of picking up the right one? If this question has been troubling you, be rest assured now! This book, Java Server Programming: Java EE 5 (J2EE 1.5) Black Book, Platinum Edition, is a one-time reference book that covers all aspects of Java EE in an easy-to-understand approach for example, how an application server runs; how GlassFish Application server deploys a Java application; a complete know-how of design patterns, best practices, and design strategies; working with Java related technologies such as NetBeans IDE 6.0, Hibernate, Spring, and Seam frameworks; and proven solutions using the key Java EE technologies, such as JDBC, Servlets, JSP, JSTL, RMI, JNDI, JavaMail, Web services, JCA, Struts, JSF, UML, and much more& All this, as the book explores these concepts with appropriate examples and executable applications no doubt, every aspect of the book is worth its price.

JPA ( Java Persistence API ) For Beginner

Amit K
JPA Java Persistence API For Beginner Book PDF

Author : Amit K
Publisher : Independently Published
Page : 0 pages
File Size : 55,5 Mb
Release : 2024-04-04
Category : Computers
ISBN : 9798321901670

Get Book

JPA ( Java Persistence API ) For Beginner by Amit K Pdf

JPA ( Java Persistence API ) is a powerful framework that can be used to quickly build robust data-driven application. Most of the data that our applications manipulate have to be stored in datastores, retrieved, processed and analysed. If this datastore is a relational database and you use an object-oriented programming language such as Java, then you should have a look at JPA. JPA is an Object-Relational Mapping tool that maps Java objects to relational databases and allows query operations. In this book, you will learn Java Persistence API, its annotations for mapping entities. JPA Integration with spring frameworks. You will learn Java Mapping persistent classes, value types, and inheritance Mapping collections and entity associations Processing transactions with Spring Data and Hibernate Creating fetch plans, strategies, and profiles Filtering data Using Java persistence with non-relational databases Querying JPA with QueryDSL Chapter 1: JPA One to One Mapping 1 Example 1: JPA OneToOne Mapping 2 Example 2: JPA OneToOne Lazy Load Mapping 3 Example 3: JPA OneToOne Join Column Mapping 4 Example 4: JPA OneToOne Primary Key Join Column Mapping 5 Example 5: JPA OneToOne Map Cascade Mapping 6 Example 6: JPA OneToOne Unidirectional Mapping 7 Example 7: JPA OneToOne Bidirectional Mapping Chapter 2: JPA One to Many Mapping 1 Example 8: JPA OneToMany Mapping 2 Example 9: JPA OneToMany Join Table Mapping 3 Example 10: JPA OneToMany Unidirectional Mapping 4 Example 11: JPA OneToMany OrderBy Mapping 5 Example 12: JPA Persist OrderedList Mapping 6 Example 13: JPA OneToMany Map Key Mapping 7 Example 14: JPA OneToMany Untyped Mapping Chapter 3: JPA Many to One Mapping 1 Example 15: JPA ManyToOne Mapping 2 Example 16: JPA ManyToOne Join Columns Mapping 3 Example 17: JPA ManyToOne Join Column Mapping Chapter 4: JPA Many to Many Mapping 1 Example 18: JPA ManyToMany Mapping 2 Example 19: JPA ManyToMany Join Table Mapping 3 Example 20: JPA ManyToMany Bidirectional Mapping 4 Example 21: JPA ManyToMany Embeddable Mapping