How to name a composite class like this?

Question

Our team are using Spring Boot 2 with sql2o as db library. In the paste in our services, for trivial methods, we simply call the repository and returns the model. For example, if I have a Supplier table, I had in the service

@Override
public List<Supplier> findAll() {
    return supplierRepository.findAll();
}

Now, since in our controllers we need 99% in the cases other objects correlated to the model, I would create a composite class that holds the model and other models. For example:

@Override
public List<UnknownName> findAll() {
    List<Supplier> suppliers = supplierRepository.findAll();

    List<UnknownName> res = new ArrayList<>();

    UnknownName unknownName;
    LegalOffice legalOffice;

    if (suppliers != null) {
        for (Supplier supplier in suppliers) {
            unknownName = new UnknownName();
            unknownName.setSupplier(supplier);
            legalOffice = legalOfficeService.findByIdlegaloffice(supplier.getLegalofficeid);
            unknownName.setLegalOffice(legalOffice);
            res.add(unknownName);
        }
    }

    return res;
}

What should the name of class UnknownName?

PS: I simplified the code for better redability, but I use a generic enrich() function that I call for all the find methods, so I don't have to dupe the code.

Answer 1

In the end, I adopted the suffix Aggregator, following the Domain-driven design wording.

Answer 2

I would recommend SupplierDto or SupplierLegalOfficeDto. DTO stands for Data Transfer Objects and it's commonly used for enriched models (more here).

Also you shouldn't check suppliers for null as repository always returns a non-null list.