How do I search for a nested #Indexed key in Redis redis-om-spring? - spring-boot

Question

I am trying to search for a nested #Indexed field using redis-om-spring
For some reason a find returns expected 1 entry for level 1, but returns unexpected 0 entries for level 2.
I am not sure if I can only search one level deep or if I am making a mistake.
#SpringBootApplication
#Configuration
#EnableRedisDocumentRepositories
#Slf4j
public class Application {
#Autowired
ProductRepository productRepository;
#Bean
CommandLineRunner loadTestData() {
return args -> {
productRepository.deleteAll();
productRepository.save(new Product(new MyKey(new MyId("A_level2Key1"),"A_level1Key1"),"FirstColour"));
productRepository.save(new Product(new MyKey(new MyId("B_level2Key1"),"B_level1Key1"),"SecondColour"));
var byMyKeyLevel1Key = productRepository.findByMyKeyLevel1Key("A_level1Key1");
System.out.println(byMyKeyLevel1Key.size());//returns expected 1 entry for level 1
var byMyKeyMyIdLevel2Key = productRepository.findByMyKeyMyIdLevel2Key("A_level2Key1");
System.out.println(byMyKeyMyIdLevel2Key.size());//returns unexpected 0 entries for level 2
};
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
Product
import com.redis.om.spring.annotations.Document;
import com.redis.om.spring.annotations.Indexed;
import com.redis.om.spring.annotations.Searchable;
#Slf4j
#Data
#AllArgsConstructor
#NoArgsConstructor
#Document
public class Product {
#Indexed
#Id
private MyKey myKey;
#Searchable
#NonNull
private String colourDesc;
}
ProductRepository
public interface ProductRepository extends RedisDocumentRepository<Product, String> {
List<Product> findByMyKeyLevel1Key(String level1Key);
List<Product> findByMyKeyMyIdLevel2Key(String level2Key);
}
MyKey
import com.redis.om.spring.annotations.Indexed;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
#Data
#AllArgsConstructor
#NoArgsConstructor
public class MyKey {
#Indexed
MyId myId;
#Indexed
String level1Key;
}
Data in Redis:
FT.INFO "com.redis.om.documents.domain.ProductIdx"
From the logs, it generates searches:
FT.SEARCH "com.redis.om.documents.domain.ProductIdx" #myKey_level1Key:{A_level1Key1}
FT.SEARCH "com.redis.om.documents.domain.ProductIdx" #myKey_myId_level2Key:{A_level2Key1}
I start Redis with:
docker run -d --name redis-stack -p 6379:6379 -p 8001:8001 redis/redis-stack:latest

Answer 1

The issue is likely in the naming of the repository methods. I wrote your example as a test in the project repo, this will be using release 0.7.0 - but it should work with 0.6.x-SNAPSHOTs:
The entity:
#Data #AllArgsConstructor #NoArgsConstructor #Document public class Product {
#Indexed #Id private MyKey myKey;
#Searchable #NonNull private String colourDesc;
}
The first-level key:
#Data #AllArgsConstructor #NoArgsConstructor public class MyKey {
#Indexed MyId myId;
#Indexed String level1Key;
#Override public String toString() {
return myId.toString();
}
}
The second-level key:
#Data #AllArgsConstructor #NoArgsConstructor public class MyId {
#Indexed
private String level2Key;
#Override public String toString() {
return level2Key;
}
}
The repo, here's where things probably went wrong for you...
public interface ProductRepository extends RedisDocumentRepository<Product, MyKey> {
List<Product> findByMyKey_Level1Key(String level1Key);
List<Product> findByMyKey_MyId_Level2Key(String level2Key);
}
and here's a snippet of the test class I used:
#Autowired ProductRepository productRepository;
#BeforeEach
void setup() {
productRepository.deleteAll();
productRepository.save(new Product(new MyKey(new MyId("A_level2Key1"),"A_level1Key1"),"FirstColour"));
productRepository.save(new Product(new MyKey(new MyId("B_level2Key1"),"B_level1Key1"),"SecondColour"));
}
#Test
void testFindNestedKeyValues() {
var byMyKeyLevel1Key = productRepository.findByMyKey_Level1Key("A_level1Key1");
assertThat(byMyKeyLevel1Key).map(Product::getMyKey).map(MyKey::getLevel1Key).containsExactly("A_level1Key1");
var byMyKeyMyIdLevel2Key = productRepository.findByMyKey_MyId_Level2Key("A_level2Key1");
assertThat(byMyKeyMyIdLevel2Key).map(Product::getMyKey).map(MyKey::getMyId).map(MyId::getLevel2Key).containsExactly("A_level2Key1");
}
Hope that helps! Thanks for trying Redis OM Spring!