Custom RowMapper

The BeanPropertyRowMapper can be used to map the results of the query to our bean. If the database table has a different structure or column names, we need to define our custom mapping.

RowMapper interface

We can define our own row mapper in the PlayerDao class by implementing the RowMapper interface and providing the bean onto which the rows will be mapped. The custom row mapper, PlayerMapper is created as an inner class because it will only be used inside JdbcPlayerDao. It is best practice to make it static and final.