How to change method names from jpa-repository? - spring

Question

There is application on spring+jpa(repositories)
Entity:
#Entity
#Getter
#Setter
#NoArgsConstructor
public class User{
private int id;
private String name;
private String surname;
private int age;
}
So, my repository looks like this:
#Repository
public interface UserRepository extends CrudRepository<User, Integer>{
public List<User> findUsersByNameAndAge(String name, int age);
public List<User> findUsersByNameAndSurname(String name, String surname);
}
In my real prod code, there too much params, so this method-name is too long and not comfortable.
Is there a way to make from long method names comfortable options, like just find?

Answer 1

Use default Java 8 feature for wrapping :
for example :
interface UserRepository extends JpaRepository<User, Long> {
// don't use that crazy long method! use getByEmail instead
User findFirstByEmailContainsIgnoreCaseAndField1NotNullAndField2NotNullAndField3NotNullAndField4NotNullAndField5NotNullAndField6NotNull(final String email);
default User getByEmail(final String email) {
return findFirstByEmailContainsIgnoreCaseAndField1NotNullAndField2NotNullAndField3NotNullAndField4NotNullAndField5NotNullAndField6NotNull(email);
}
}
You can find complete reference here : https://github.com/daggerok/spring-data-examples/blob/master/shadov/src/main/java/daggerok/ShadovApplication.java
Or else You can specify any name for a method and add an annotation #Query with parameter value which holds desired query to database like this:
#Query(value="select u from User u where u.deleted=false and u.email=:email")
User findOneByEmail(#Param("email")String email);
or, with native sql query:
#Query(value="SELECT * FROM users WHERE deleted=false AND email=?1", nativeQuery=true)
User findOneByEmail(String email);
You can also use names that follow the naming convention for queries since #Query annotation will take precedence over query from method name.