Using repository annotation when implementing JpaRepostiory in Spring

Question

I'm not sure if I understand it correctly so want to clarify. If I want to create a repository for my entity eg.:

public interface BookRepository extends JpaRepository<Book, Id> {}

Should I annotate it with @Repository? According to this question @Repository annotation translates exceptions from SQL to persistence ones but doesn't JpaRepostiory already do that? What's the best practice - to annotate or not?

Answer 1

While using JpaRepository you don't need to annotate the interface with @Repository

It is just an interface and the concrete implementation is created dynamically as a proxy object by Spring and the JDBC Exceptions are handled there.

You need to use @Repository when you create a Custom DAO, so that spring creates a bean and handles the exception properly.