Develop the Data Access Tier

Explore how to create the data access layer for many-to-many self-referencing relationships in Java using Hibernate and Spring. Understand writing test cases for 'find all records' and 'isPresent' operations to verify data links. This lesson prepares you to work effectively with complex relational mappings.

We'll cover the following...

- “Find all records” operation
- The isPresent operation

1.Software Architecture

2.Managing a Standalone Entity

3.One-to-One Uni-directional Relationship

4.One-to-One Bi-directional Relationship

5.One-to-One Self-Referencing Relationship

6.One-to-Many Uni-directional Relationship

7.One-to-Many Bi-directional Relationship

8.One-to-Many Self-Referencing Relationship

9.Many-to-Many Unidirectional Relationship

10.Many-to-Many Bi-directional Relationship

11.Many-to-Many Bi-directional with Join-Attribute Relationship

12.Many-to-Many Self-Referencing Relationship

13.Many-to-Many Self-Referencing with Join-Attribute Relationship

14.Single Table Inheritance

15.Concrete Table Inheritance

16.Class Table Inheritance

17.Appendix

Project

Develop the Data Access Tier