MapStruct does not generate code for Named Qualifiers without any source

问题

In continuation with the topic of discussion .. Mapstruct auto generated impl - maps to the wrong method

I seem to be having more problems with Mapstruct , Here is the full code , could you check and let me know what is missing .. why doesnt the auto generated Impl have code for target attributes without a source ?

import org.mapstruct.*;

import java.util.List;


@Mapper(uses = EditedPieceMapFilter.class)
public interface EditedPieceMapMapper {
    @Mapping(target = "startAge", source = "startAge")
    @Mapping(target = "endAge", qualifiedByName = "getEndAge")
    @Mapping(target = "targetPensionAmount", source = "annualBenefitPlans", qualifiedBy = EditedPieceMapFilter.TargetPensionAmount.class)
    @Mapping(target = "paymentMethod", qualifiedByName ="getPaymentMethod")
    @Mapping(target = "earnedPensionAmount", source = "annualBenefitPlans", qualifiedBy = EditedPieceMapFilter.EarnedPensionAmount.class)
    @BeanMapping(ignoreByDefault = true)
    EditedPiece toEntity(Integer startAge, @Context Integer endAge, List<AnnualBenefitPlan> annualBenefitPlans);


    @Named("getEndAge")
    default Integer endAge(@Context Integer endAge) {
        return endAge;
    }

    @Named("getPaymentMethod")
    default String paymentMethod(@Context Integer endAge) {
        return endAge == null ? LIFE_LONG : TIME_LIMITED;
    }
}

But the autogenerated Impl has only the following , the attributes to be populated by named Qualifiers are missing ..(eg: end Age and paymentmethod) Am I missing something here ?

@Component
public class EditedPieceMapMapperImpl implements EditedPieceMapMapper {
    @Autowired
    private EditedPieceMapFilter editedPieceMapFilter;

    public EditedPieceMapMapperImpl() {
    }

    public EditedPiece toEntity(Integer startAge, Integer endAge, List<AnnualBenefitPlan> annualBenefitPlans) {
        if (startAge == null && annualBenefitPlans == null) {
            return null;
        } else {
            EditedPiece editedPiece = new EditedPiece();
            if (startAge != null) {
                editedPiece.setStartAge(startAge);
            }

            if (annualBenefitPlans != null) {
                editedPiece.setTargetPensionAmount(this.editedPieceMapFilter.targetPensionAmountSum(annualBenefitPlans));
                editedPiece.setEarnedPensionAmount(this.editedPieceMapFilter.earnedPensionAmountSum(annualBenefitPlans));
            }

            return editedPiece;
        }
    }
}

回答1:

The reason why it doesn't work is because it is not meant to be used without source parameters. However, you can achieve what you are looking for by using multiple source parameters.

For example:

@Mapper(uses = EditedPieceMapFilter.class)
public interface EditedPieceMapMapper {
    @Mapping(target = "startAge", source = "startAge")
    @Mapping(target = "endAge", source="endAge", qualifiedByName = "getEndAge")
    @Mapping(target = "targetPensionAmount", source = "annualBenefitPlans", qualifiedBy = EditedPieceMapFilter.TargetPensionAmount.class)
    @Mapping(target = "paymentMethod", source="endAge" qualifiedByName ="getPaymentMethod")
    @Mapping(target = "earnedPensionAmount", source = "annualBenefitPlans", qualifiedBy = EditedPieceMapFilter.EarnedPensionAmount.class)
    @BeanMapping(ignoreByDefault = true)
    EditedPiece toEntity(Integer startAge, Integer endAge, List<AnnualBenefitPlan> annualBenefitPlans);

    @Named("getPaymentMethod")
    default String paymentMethod(Integer endAge) {
        return endAge == null ? LIFE_LONG : TIME_LIMITED;
    }
}

来源：https://stackoverflow.com/questions/59147782/mapstruct-does-not-generate-code-for-named-qualifiers-without-any-source

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