[FIXED] conditional repository injection - Spring Boot

Issue

I Have two repository interfaces that connect MongoDB and CouchBase :

public interface UserRepositoryMongo extends MongoRepository<User, Long> {
}
public interface UserRepositoryCouch extends  CouchbasePagingAndSortingRepository<User, Long> {
}

Is there a way to interchangeably @Autowire these repositories into UserService on condition? The condition will be inside property file : application.properties.

**Note :**

*These repositories can have custom methods too.*

Solution

Another attempt to solve this problem.

Based on the property, the autowired customRepository will be an instance of SimpleMongoRepository or SimpleCouchRepository.

    public interface CustomRepository extends CrudRepository<User, Long> {
        User findByLastName(String lastName); //custom methods
    }

    @Qualifier("specificRepo")
    @ConditionalOnProperty("mongo.url")
    public interface UserRepositoryMongo extends MongoRepository<User, Long>, CustomRepository{
    }

    @Qualifier("specificRepo")   
    @ConditionalOnProperty("couch.url")
    public interface UserRepositoryCouch extends  CouchbasePagingAndSortingRepository<User, Long>, CustomRepository{
    }

    public class UserService {

        @Autowired
        @Qualifier("specificRepo")
        private CustomRepository repository;
    }

Answered By - Kumar V
Answer Checked By - Marie Seifert (JavaFixing Admin)