CODEWITHSUNDEEP
javamapstruct
TheFastestTurtle
TheFastestTurtle

Reputation: 149

Additional parameter in mapstruct mapper

I have Car:

And CarDTO:

In my service class I'm passing additional parameter "owner" and I need to convert the list.

Is it possible to add "owner" to Mapper?

If yes then I suppose it should be something similar to this (not working).

@Mapper
public interface CarMapper {

@Mapping(target = "owner", source = "owner")
List<Car> mapCars(List<CarDTO> cars, String owner);
}

Upvotes: 13

Views: 15590

Answers (3)

AzyCrw4282
AzyCrw4282

Reputation: 7744

I didnt even have to use context. I could simply pass the additional parameter and the mapper recognises it in the build.

    NotMORV2Entity toNotMorV2Entity(ReEntity reEntity, int glAccountTypeId);

Please also see this to understand more.

Upvotes: 1

Toni
Toni

Reputation: 5115

As described in the answer, you can use @Context.

Firstly, add a single object mapping method:

@Maping(target = "owner", source = "owner")
Car mapCar(CarDTO car, String owner);

Then define a method for mapping a list of objects with @Context:

List<Car> mapCars(List<CarDTO> cars, @Context String owner);

Since @Context parameters are not meant to be used as source parameters, a proxy method should be added to point MapStruct to the right single object mapping method to make it work.

In the end, add the proxy method:

default Car mapContext(CarDTO car, @Context String owner) {
    return mapCar(car, owner);
}

Upvotes: 12

GJohannes
GJohannes

Reputation: 1763

Yes it is possible. You could try the @Context annotation before "owner"

I would suggest something like this:

@Mapper
public interface CarMapper {

@Maping(target = "owner", source = "owner")
Car mapCar(CarDTO car, @Context String owner);

@Maping(target = "owner", source = "owner")
List<Car> mapAllCars(List<CarDTO> cars, @Context String owner);

@AfterMapping
default void afterMapping(@MappingTarget Car target, @Context String owner) {
    target.setOwner(owner);
}

there are multiple ways to approache your problem. You could also have a look at Passing additional parameters to MapStruct mapper

Upvotes: 0

Related Questions