spring-data - 如何缩短 Spring Data JPA Repositories 中查询方法的名称？

Question

考虑一个 Spring Data Jpa 存储库:

public interface UserRepository extends JpaRepository<User, Long> {

    User findOneByDeletedIsFalseAndActivationKey(String activationKey);

    List<User> findAllByDeletedIsFalseAndActivatedIsFalseAndCreatedDateBefore(DateTime dateTime);

    User findOneByDeletedIsFalseAndLogin(String login);

    User findOneByDeletedIsFalseAndEmail(String email);

}

注意每个方法中都有“DeletedIsFalse”。有没有一种简单的方法可以缩短方法名称？比如:

@FullMethodName("findOneByDeletedIsFalseAndEmail")
User findOneByEmail(String email);

Answer 1

使用 default用于包装的 Java 8 功能，就像这样:

// use findOneByEmail instead
User findOneByDeletedIsFalseAndEmail(String email);

default User findOneByEmail(String email) {
    return findOneByDeletedIsFalseAndEmail(email);
}

见 an example .