Master Hibernate and JPA with Spring Boot in 100 Steps - Step 12 - Creating a Custom Spring JDBC RowMapper

The video tutorial explains how to create and use a custom row mapper in JDBC. It begins by discussing the limitations of the default Bean Property Row Mapper and the need for custom row mappers when table structures differ from Java beans. The tutorial then guides viewers through defining a custom row mapper by implementing the Row Mapper interface, detailing the process of mapping database columns to Java object fields. Finally, it highlights the benefits of using custom row mappers, such as reusability and flexibility in handling different table structures.

What is the primary purpose of a custom row mapper in JDBC?

• To optimize SQL queries

• To manage database connections

• To map query results to a bean when structures differ

• To handle database transactions

Which interface must be implemented to create a custom row mapper?

• Row Mapper

• Result Mapper

• Bean Mapper

• Data Mapper

What method is typically used to retrieve an integer value from a result set in a custom row mapper?

• getTimestamp

• getInt

• getDate

• getString

What is a key benefit of using a custom row mapper?

• Increased database security

• Improved query performance

• Reusability of mapping logic

• Simplified database schema

What remains unchanged when switching from a Bean Property Row Mapper to a custom row mapper?

• Database schema

• Functionality of the application

• Java bean structure

• SQL query syntax