[英]How to specify select among ambiguous mapping methods in nested Mapstruct mappers?
We have a particular case in which a Mapstruct mapper can choose between 2 different alternative methods from its dependency (namely ProductionPlanDetailAutoMapper), but, unable to do so, returns a compile error SupplyPlanProjectionAutoMapper.java Can't map map value "java.util.List<ProductionPlanDetail>" to "java.util.List<ProductionPlanDetailDTO> ". Consider to declare/implement a mapping method: "java.util.List<ProductionPlanDetailDTO> map(java.util.List<ProductionPlanDetail> value)".
SupplyPlanProjectionAutoMapper.java Can't map map value "java.util.List<ProductionPlanDetail>" to "java.util.List<ProductionPlanDetailDTO> ". Consider to declare/implement a mapping method: "java.util.List<ProductionPlanDetailDTO> map(java.util.List<ProductionPlanDetail> value)".
源代码由 2 个映射器组成:概述以及它们各自的代码:
映射器 1:
@Mapper(componentModel = "spring", uses={ProductionPlanDetailAutoMapper.class})
public interface SupplyPlanProjectionAutoMapper {
@Mapping(source = "material.id", target = "materialId")
public PlanningProjectionDTO convert(PlanningProjection);
public Map<PlanningProjectionDTO, List<ProductionPlanDetailDTO>> convertMapProductionPlanDetail (Map<PlanningProjection, List<ProductionPlanDetail>> map);
}
映射器 2:
@Mapper(componentModel = "spring", uses={RecipeAutoMapper.class})
public interface ProductionPlanDetailAutoMapper {
@Mapping(source = "location.id", target = "locationId")
@Mapping(source = "receitaProducaoOperacao", target = "productionRecipeOperation")
@Mapping(source = "dataReferencia", target = "referenceDate")
@Named(value = "convertWithRecipeDetail")
public ProductionPlanDetailDTO convertWithRecipeDetail(ProductionPlanDetail);
@Mapping(source = "receitaProducaoOperacao.listaTecnica.materialOutput.id", target = "outputMaterialId")
@Mapping(source = "receitaProducaoOperacao.listaTecnica.id", target = "billOfMaterialsId")
@Mapping(source = "receitaProducaoOperacao.receitaProducaoOperacaoCompositeKey.receitaProducao.id", target = "productionRecipeId")
@Mapping(source = "receitaProducaoOperacao.recursoProdutivo.id", target = "productionResourceId")
@Mapping(source = "receitaProducaoOperacao.receitaProducaoOperacaoCompositeKey.posicaoOperacao", target = "productionRecipeOperationSequence")
@Mapping(source = "location.id", target = "locationId")
@Mapping(source = "dataReferencia", target = "referenceDate")
@Named(value = "convertWithoutRecipeDetail")
public ProductionPlanDetailDTO convertWithoutRecipeDetail(ProductionPlanDetail productionPlanDetail);
@Named(value = "convertToListWithRecipeDetail")
@IterableMapping(qualifiedByName = "convertWithRecipeDetail")
public List<ProductionPlanDetailDTO> convertToDTOListWithRecipeDetail (List<ProductionPlanDetail> productionPlanDetailList);
@Named(value = "convertToListWithoutRecipeDetail")
@IterableMapping(qualifiedByName = "convertWithoutRecipeDetail")
public List<ProductionPlanDetailDTO> convertToDTOListWithoutRecipeDetail (List<ProductionPlanDetail> productionPlanDetailList);
}
第二个映射器内部方法之间的歧义通过@Name 和@IterableMapping#QualifiedByName 的结合来解决
我们通过将以下注释附加到 convertMapProductionPlanDetail 方法来尝试相同的方法,但无济于事:
@IterableMapping(qualifiedByName = "convertToListWithRecipeDetail")
尽管 Mapstruct 开发人员已经在文档中没有考虑过它。 在梳理文档时,我发现了这个: valueQualifiedByName
解决方案是使用 MapMapping 并指定应使用 2 个 @Name 方法中的哪一个来填充 map 的 Values 部分(List(ProductionPlanDetail) 所在的位置):
@MapMapping(valueQualifiedByName = "convertToDTOListWithRecipeDetail")
public Map<PlanningProjectionDTO, List<ProductionPlanDetailDTO>> convertMapProductionPlanDetail (Map<PlanningProjection, List<ProductionPlanDetail>> map);
这非常优雅地解决了这个问题。 另一方面,如果转换问题存在于 map 密钥中,则应改用 @MapMapping#keyQualifiedByName。
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