How To Fetch DTO Via JDK14 Records, Constructor Expression and JPQL

Description: Fetching more data than needed is prone to performance penalities. Using DTO allows us to extract only the needed data. In this application we rely on JDK 14 Records, Constructor Expression and JPQL.

From Openjdk JEP359:

Records provide a compact syntax for declaring classes which are transparent holders for shallowly immutable data.

Key points:

Define the AuthorDto as:

public record AuthorDto(String name, int age) {}

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