JPA One-To-Many Mapping

One-ToMany mapping means that one row in a table is mapped to multiple rows in another table.

We have to create One-To-Many relationship between the Admin and the Employees in such a way that one Admin can be relate more than one employee.

Admin entity class:

To configure the relationship type we mark the collection with @OneToMany annotation

Employee entity class:

The @ManyToOne annotation is associated with the Admin class variable.
@JoinColumn annotation references the mapped column.

EmployeeServiceImple class:

EmployeeCreateRequest class:

Tharushi Rachel