Spring Data MongoDB No property get found for type at org.springframework.data.mapping.PropertyPath

Question

I am using Spring Data MongodB 1.4.2.Release version. For Spring Data MongoDB, I have created the custom repository interface and implementation in one location and create custom query function getUsersName(Users users).

However I am still getting below exception:

Caused by: org.springframework.data.mapping.PropertyReferenceException:
  No property get found for type Users! at org.springframework.data.mapping.PropertyPath.     (PropertyPath.java:75) at
    org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) at 
    org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359) at
    org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359) at
    org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) at
    org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) at
    org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) at
    org.springframework.data.repository.query.parser.Part.(Part.java:76) at
    org.springframework.data.repository.query.parser.PartTree$OrPart.(PartTree.java:201) at
    org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:291) at 
    org.springframework.data.repository.query.parser.PartTree$Predicate.(PartTree.java:271) at 
    org.springframework.data.repository.query.parser.PartTree.(PartTree.java:80) at 
    org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.(PartTreeMongoQuery.java:47)

Below is my Spring Data MongoDB structure:

Users Domain Object:

        @Document(collection = "users")
        public class Users {
        
        @Id
        private ObjectId id;
        
        @Field ("last_name")
        private String last_name;
        
        @Field ("first_name")
        private String first_name;

       public String getLast_name() {
          return last_name;
      }

      public void setLast_name(String last_name) {
        this.last_name = last_name;
     }

      public String getFirst_name() {
        return first_name;
     }

     public void setFirst_name(String first_name) {
        this.first_name = first_name;
     }
}

UsersRepository.java main interface:

        @Repository
        public interface UsersRepository extends MongoRepository<Users,String>, UsersRepositoryCustom { 
        
             List findUsersById(String id);
        
         }

UsersRepositoryCustom.java custom interface:

        @Repository
        public interface UsersRepositoryCustom {
        
           List<Users> getUsersName(Users users);
        }

UsersRepositoryImpl.java custom interface implementation:

        @Component
        public class UsersRepositoryImpl implements UsersRepositoryCustom {
        
        @Autowired
        MongoOperations mongoOperations;
        
        
        @Override
        public List<Users> getUsersName(Users users) {
            return mongoOperations.find(
                    Query.query(Criteria.where("first_name").is(users.getFirst_name()).and("last_name").is(users.getLast_name())), Users.class);
        }

Mongo Test function inside Spring JUnit Test class calling custom function with main UsersRepository interface:

        @Autowired
        private UsersRepository usersRepository;
        
        @Test
        public void getUsersName() {
        
            Users users = new Users();
            users.setFirst_name("James");`enter code here`
            users.setLast_name("Oliver");
            List<Users> usersDetails = usersRepository.getUsersName(users);
            System.out.println("users List" + usersDetails.size());
        
        
            Assert.assertTrue(usersDetails.size() > 0);
        }

The Custom repository does not work as mentioned in the docs - docs.spring.io/spring-data/data-mongo/docs/1.4.2.RELEASE/… — Navi
– Navi, Commented May 16, 2014 at 14:25
It works. Looks like the implementation class name was not correct. — Navi
– Navi, Commented May 16, 2014 at 16:11

Oliver Drotbohm · Accepted Answer · 2014-05-16 18:17:14Z

1

The query method declaration in your repository interface is invalid. As clearly stated in the reference documentation, query methods need to start with get…By, read_By, find…By or query…by.

answered May 16, 2014 at 18:17

Oliver Drotbohm

83.6k19 gold badges236 silver badges219 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Navi Over a year ago

Thanks Oliver for the link. Do we have to follow the query method declaration for custom methods too. I thought you can declare custom methods to start with searchBy... Or as in my above example. What should be the custom query method declaration in above case for example if I have a field name with underscore such as first_name and setter/getter methods in the domain class as getFirstName / setFirstName(String firstName)

Navi Over a year ago

What should be the custom query method declaration if I have a field name with underscore for example first_name both in mongodb and in my mapping domain class

Oliver Drotbohm Over a year ago

You can escape underscores by adding yet another underscore, yo you'd end up with findByFirst__name(…). As those method calls leak into clients, we recommend to rather stick to the Java naming conventions and not use underscores in the first place. Nonetheless, I've filed DATACMNS-505 to include a note about the escaping mechanism into the reference documentation.

Navi Over a year ago

Thanks Oliver. I would follow Java naming convention as per your recommendation. Great to add escaping mechanism into reference documentation.

Community · Accepted Answer · 2017-05-23 11:52:53Z

0

With custom repositories, there shouldn't be a need for method naming conventions as Oliver stated. I have mine working with a method named updateMessageCount

Having said that, I can't see the problem with the code provided here.

I resolved this issue with the help of this post here, where I wasn't naming my Impl class correctly :

No property found for type error when try to create custom repository with Spring Data JPA

edited May 23, 2017 at 11:52

CommunityBot

11 silver badge

answered Dec 5, 2014 at 17:48

Marc

5822 gold badges7 silver badges14 bronze badges

Collectives™ on Stack Overflow

Spring Data MongoDB No property get found for type at org.springframework.data.mapping.PropertyPath

2 Answers 2

4 Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related