Mapping nested object with mapstruct

Question

i create mapping like below. How to map flat dto object properties like (street, city, etc) to nested address in domain object. When I try to I've got an error:

[ERROR] diagnostic: Unknown property "address.postalCode" in return type. @Mapping(source = "city", target = "address.city"),

@Mapper(componentModel = "spring", uses = {})
public interface CompanyMapper {
    @Mappings({
            @Mapping(source = "id", target = "id"),
            @Mapping(source = "street", target = "address.street"),
            @Mapping(source = "city", target = "address.city"),
            @Mapping(source = "postalCode", target = "address.postalCode"),
            @Mapping(source = "province", target = "address.province"),
    })
    DomainObject map(DtoObject dto);

And classes...

public class Address {
            private String street;
            private Integer streetNumber;
            private String city;
            private String postalCode;
            private String province;
            //getters and setters
    }
public class DomainObject {
        private String id;
        private Address address;
        //getters and setters
}

public class DtoObject {
        private String id;
        private String street;
        private String city;
        private String postalCode;
        private String province;
        //getters and setters
}

score 10 · Accepted Answer · answered Jun 14 '16 at 07:09

10

Nesting on the target side as you are trying to use it is not supported yet. There's a feature request for this (issue #389), but we did not yet get to implementing this.

answered Jun 14 '16 at 07:09

Gunnar

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so is there any other solution to that issue? I think that gonna works if the expression is in the source ! – Abder KRIMA Nov 15 '16 at 01:39
1

@Gunnar Nesting on the Target side is still not supported? and if yes, then this "target side nesting" is supported with lombok out of the box? – Crosk Cool Feb 12 '18 at 17:03
it's possible using @InheritInverseConfiguration – Samuel Gwokuda Oct 11 '19 at 13:24
1

Issue gas bene closed.It works in 1.10. However not flawless. Checkout #1011. – lrkwz Jan 18 '20 at 23:58
1

fortunately, that issue has also been solved in the meantime @lrkwz – Gregor Jun 30 '21 at 13:48

score 2 · Answer 2 · answered Apr 28 '17 at 10:33

I could not find a way to do that in one method. Here is my solution :

@Mapper
public interface DtoObjectMapper {

    Address toAddress(DtoObject dtoObject);

    DomainObject toDomainObject(DtoObject dtoObject, Address address);

}

while using ;

@Component
public class SomeClass {

    @Autowired
    private DtoObjectMapper dtoObjectMapper;

    public DomainObject convert(DtoObject dtoObject) {
        return dtoObjectMapper.toDomainObject(dtoObject, dtoObjectMapper.toAddress(dtoObject));
    }
}

Mapping nested object with mapstruct

2 Answers2