Spring Data MongoDB Repository with custom collection name

Question

I am using Spring Data for MongoDB and I need to be able to configure collection at runtime.

My repository is defined as:

@Repository
public interfac         


        

Answer 1

define your entity class like

@Document(collection = "${EventDataRepository.getCollectionName()}")
public class EventData implements Serializable {

Define a custom repository interface with getter and setter methods for "collectionName"

public interface EventDataRepositoryCustom {

    String getCollectionName();

    void setCollectionName(String collectionName);
}

provide implementation class for custom repository with "collectionName" implementation

public class EventDataRepositoryImpl implements EventDataRepositoryCustom{

    private static String collectionName = "myCollection";

    @Override
    public String getCollectionName() {
        return collectionName;
    }

    @Override
    public void setCollectionName(String collectionName) {
        this.collectionName = collectionName;
    }
}

Add EventDataRepositoryImpl to the extends list of your repository interface in this it would look like

@Repository
public interface EventDataRepository extends MongoRepository, EventDataRepositoryImpl  {
}

Now in your Service class where you are using the MongoRepository set the collection name, it would look like

@Autowired
EventDataRepository  repository ;

repository.setCollectionName("collectionName");