Enterprise Java Development@TOPIC@

Part XI. Java Persistence API: Inheritance

Mapping Entity Inheritance to the Database

Copyright © 2019 jim stafford (jim.stafford@jhu.edu)

2019-08-22 07:10 EST

Abstract

This presentation provides information for mapping Java entity class inheritance to the database using JPA.

Table of Contents

Purpose
1. Goals
2. Objectives
63. Inheritance Strategy: Single Table
63.1. Single Table Strategy Overview
63.2. Single Table Example Database Schema
63.3. Single Table Example Java Mapping
63.4. Single Table Example Usage
63.5. @DiscriminatorColumn Annotation
63.6. Summary
64. Inheritance Strategy:Table per Concrete Class
64.1. Table per Concrete Class Strategy Overview
64.2. Table per Concrete Class Example Database Schema
64.3. Table per Concrete Class Example Java Mapping
64.4. Table per Concrete Class Example Usage
64.5. Summary
65. Inheritance Strategy:Join
65.1. Join Strategy Overview
65.2. Join Example Database Schema
65.3. Join Example Java Mapping
65.4. Join Example Usage (Persist)
65.5. Summary
66. Inheritance Strategy:Non-Entity
66.1. Non-Entity Strategy Overview
66.2. Non-Entity Example Database Schema
66.3. Non-Entity Example Java Mapping
66.4. Non-Entity Example Usage (Persist)
66.5. Summary
67. Mixed Inheritance Strategies
67.1. Which Strategy Gets Used for Subclass?
67.2. Generated Database Schema
67.3. Summary