“No property found for type” combining repositories spring-data-neo4j

问题

I'm using spring-data-neo4j and I'm trying to combine repositories to be able to use custom ones. I think I've followed correctly the nomenclature conventions specified in 20.8.7 Creating repositories and other SO questions like this.

Anyway, I'm doing something wrong because I'm getting this

exception message

Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property someCriteria found for type User!

User entity

@NodeEntity
public class User {

   @GraphId
   private Long nodeId;
   @Indexed
   String mail;
   ...
}

Repositories (all in the same package)

@Repository
public interface UserRepository extends GraphRepository<User>, UserRepositoryCustom {
   User findByMail(String mail);
}

public interface UserRepositoryCustom {
  String findBySomeCriteria(String criteria);
}

public class UserRespositoryImpl implements UserRepositoryCustom {
   @Override
   public String findBySomeCriteria(String criteria) {
      return "result";
   }
}

services

@Service
public class UserServiceImpl implements UserService {
   @Autowired
   UserRepository userRepository;
}

Neo4j configuration

<bean id="graphDatabaseService" class="org.springframework.data.neo4j.rest.SpringRestGraphDatabase">
      ...
</bean>
<neo4j:repositories base-package="com.mypackage.api.user.repository"/>
<bean id="userService" class="com.mypackage.api.user.service.UserServiceImpl"/>

回答1:

In this case it has been just a stupid spelling mistake.

Need change UserRespositoryImpl per UserRepositoryImpl (without 's': note UserRespositoryImpl).

Anyway, I've been struggling with custom repository combination in spring-data-neo4j and I think it can be a bit confusing. Also I think there are very few good examples online... So, finally I've decided to create a sample project on GitHub, with a basic example showing how we can do that.

Hope it help other people in the future.

See on GitHub: neo4jCustomRepository

来源：https://stackoverflow.com/questions/29724312/no-property-found-for-type-combining-repositories-spring-data-neo4j

标签

java

neo4j

repository-pattern

spring-data-neo4j