1)PFB the link reference for basic spring boot projects and concepts,
2)In a one-to-many relationship, one record in a table can be associated with one records in another table.
2.1)It helps to link with 2 tables contains primary key and foreign key.
2.2)@OneToOne annotation automatically creates the foreign key in child table and represents the link between 2 tables.
2.3)It ensures the link between parent table having one data has linked with child table having another one data.
Parent table:
3)PFB the One-To-One from code perspective,
3.1)This base entity is an abstract class and it only contains common parameters for all tables.
3.2)EmpModel class denoted here as parent model class
4)This project explains below using Spring Boot, Restful-web-service and JPA,
- Fetch all data from all 2 tables on One-To-One Mapping.
- Fetch single data from all 2 tables against single given data on One-To-One Mapping.
- Fetch multiple data from all 2 tables against multiple given data on One-To-One Mapping.
- Save or Update single data in all 2 tables against single data from request on One-To-One Mapping.
- Save or Update multiple data in all 2 tables against multiple data from request on One-To-One Mapping.
- Fetch all data from child table on One-To-One Mapping.
- Fetch single data from child table against single data from request on One-To-One Mapping.
- Fetch multiple data from child table against multiple data from request on One-To-One Mapping.
- Save or Update single data to child table against single data from request on One-To-One Mapping.
- Save or Update multiple data to child table against multiple data from request on One-To-One Mapping.
5)Use the below link to download the source code,
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Thanks, I hope you enjoyed this session !!!.
-Somasundar Kanakaraj