Introduction to JPA Course | DevelopIntelligence

Course Summary

The Introduction to JPA training course is designed to demonstrate an in-depth exploration of database driven development using Java Persistence Architecture (JPS) both inside and outside of a Jakarta Enterprise Edition (EE) container.

The course begins with a review of common database programming techniques, including Java Database Connectivity (JDBC) and RowSets. Next, it examines how Object-Relational Mapping (ORM) frameworks and technologies simplify database development. The course concludes key JPA concepts, like an EntityManager, how to create advanced queries using Java Persistence Query Language (JPQL), and examining how to structure complex entity relationships. The course concludes with a discussion about transactions.

Purpose

Learn how to build Jakarta Enterprise Edition (EE) and Java Standard Edition (SE) database driven applications utilizing the Java Persistence Architecture (JPA).

Audience

Experienced Java programmers familiar with JDBC and database development.

Role

Software Developer

Skill Level

Intermediate

Style

Hack-a-thon - Learning Spikes - Workshops

Duration

2 Days

Related Technologies

Advanced Jakarta EE

Hibernate

Java

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Productivity Objectives:

Describe Java Persistence Architecture (JPA) and its capabilities
Compare the advantages and disadvantages of Object-Relational Mapping (ORM) frameworks
Configure persistence context inside and outside of a container
Implement a basic Create, Read, Update, Delete (CRUD) application using JPA
Map complex database schemas to JPA Entities
Create robust queries using Java Persistence Query Language (JPQL) and Native Structured Query Language (SQL)

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Real-World Content

Project-focused demos and labs using your tool stack and environment, not some canned "training room" lab.
Expert Practitioners

Industry experts with 15+ years of industry experience that bring their battle scars into the classroom.
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More coding than lecture, coupled with architectural and design discussions.
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What You'll Learn

In the Introduction to JPA training course, you'll learn:

Review of Database Concepts
- Review of using JDBC to perform CRUD operations
- Advanced JDBC development using meta-data capabilities
- Perform ORM with JDBC and JavaBeans
What is JPA?
- Review of ORM problem
- Examine industry attempts to solve problem
- Resolve the relationship between Hibernate and JPA
Core JPA Concepts
- What is JPA?
- Overview of key concepts and terms
- Persistence units, Entities, and EntityManagers
- EntityManagerFactories, JPA QL, and the JPA Criteria queries
Configuring JPA
- Set up the environment to work with JPA and a persistence provider
- Create a persistence.xml file
- Define a persistence provider
- Define a persistence unit using JDBC connection strings and pooling
- Define a persistence unit using data sets
- Utilize Hibernate as a persistence provider
- Utilize EclipseLink as a persistence provider
- Choose the best configuration style
Creating a Basic JPA CRUD Application
- Review of Java annotations
- Review of Dependency Injection
- Creating an Entity
- Associating Entity with EntityManager
- Performing CRUD with an EntityManager
- Understanding Entity states
- Performing basic Primary Key querying
Overview of Mapping Concepts
- Types of relationships
- Create relationships using Primary Keys and Foreign Keys
- Define associations using cardinality
- Identify annotations used to build basic relationships
- Utilize type converters
Implementing Mapping Concepts
- 1-1 Mapping
- 1-N Mapping
- N-1 Mapping
- N-N Mapping
Object Relational Mappings
- Apply OO design to mappings
- Collection mapping
- Inheritance mappings
- Override “defaults”
Advance Mapping Configurations
- Understand “conventions”
- Build a solution using “configuration over convention”
- Work with configuration annotations
Introduction to JPA QL
- Review of querying concepts
- Simple queries and conditions, Joins, Inner Joins, Outer Joins, Order by
- What is JPA QL?
- JPA QL syntax, structure, and functions
Understanding Types of Queries Supported by JPA QL
- Create dynamic run-time queries
- Create compile-time named queries
- Create native-queries
- Create stored procedures
Integrating JPA with Jakarta EE
- Configure JPA with the app server
- Utilize resource injection (CDI) to access a persistence unit
- JPA within the JSP / Servlet container
- JPA Within the EJB Container