What method is usually used to implement data search in a repository?

Data search in a repository is usually implemented using methods that access a database or other storage, using search criteria. In Java, the Repository pattern is often used with ORM, such as JPA or Spring Data.

Example of a search method by name in a Spring Data repository interface:

public interface UserRepository extends JpaRepository<User, Long> {
    List<User> findByNameContainingIgnoreCase(String namePart);
}

This method automatically generates a query that searches for users whose name contains the specified substring, case-insensitive. This approach simplifies the implementation of search and makes the code more readable.