CODEWITHSUNDEEP
springmongodbspring-bootspring-data
scphantm
scphantm

Reputation: 4533

Spring Data MongoDB eliminate POJO's

My system is a dynamic telemetry system. We have hundreds of different spiders all sending telemetry back to the SpringBoot server, Everything is dynamic, driven by json files in Mongo, including the UI. We don't build the UI, as opposed to individual teams can configure their own UI for their needs, all by editing json docs.

We have the majority of the UI running and i began the middleware piece. We are using Spring Boot for the first time along with Spring Data Mongo with several MQ listeners for events. The problem is Spring Data. I started reading the docs on it and I realized the docs do not address using it without POJO's. I have this wonderfully dynamic model that changes per user per minute if the telemetry spiders dictate, I couldn't shackle this to a POJO if I tried. Is there a way to use Spring Data with a Map?

It seems from my experiments that the big issue is there is no way to tell the CRUD routines of the repository class what collection to query without a POJO.

Are my suspicions correct in that this won't work and am I better off ditching Spring Data and using the Mongo driver directly?

Upvotes: 1

Views: 2318

Answers (1)

pvpkiran
pvpkiran

Reputation: 27018

I don't think you can do it without a pojo when using spring-data. The least you could do is this 

public interface NoPojoRepository extends MongoRepository<DummyPojo, String> {
}

and create a dummy pojo with just id and a Map. 

@Data
public class DummyPojo {
  @Id
  private String id;
  private Map<String, Object> value;
}

Since this value field is a map, you can store pretty much anything.

Upvotes: 2

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