选择带有多栏的多对多

Question

我在两个表之间有很多关系：

流程是这样的：

创建包->创建dataSet [将其链接到包]-> dataSet具有n个结构-> n到n个转换（包-> n TRANSFORMATION）。

我的问题是，当我选择（在我使用转换链接包装和使用结构转换）后，转换得到空白结构[]

这是我的代码（将包与转换链接在一起，并与结构保持转换）

Optional<Package> aPackage = packagePersistenceService.findById(tranformationPackageStructure.getPackageID());
    Optional<Structure> structureIn = structureService.findById(tranformationPackageStructure.getStructureInID());

    if (aPackage.isPresent() && structureIn.isPresent()){
        TransformationStructInOutDomain transformationStructInOutDomain = new TransformationStructInOutDomain();


        //Create struct out
        Optional<Structure> structureOut = structureService.save(tranformationPackageStructure.getStructureOut());

        /*
         *  PACKAGE - TRANSFORMATION
         *****/
            //-- Save transformation
            Transformation transformation = tranformationPackageStructure.getTransformation();
            transformation.setaPackage(aPackage.get());
            Transformation savedTransformation = transformationRepository.save(transformation);
            aPackage.get().getTransformations().add(transformation);
            packagePersistenceService.save(aPackage.get());

        /*
         *  TRANSFORMATION - STRUCTURE
         *****/
            //Link to struct in
            transformationStructureService.save(savedTransformation, structureIn.get());
            structureIn.get().getTransformations().add(new TransformationStructure(structureIn.get(), savedTransformation, STRUCT_IN));
            structureService.save(structureIn.get());

            //Link to structure out
            transformationStructureService.save(savedTransformation, structureOut.get());
            structureOut.get().getTransformations().add(new TransformationStructure(structureOut.get(), savedTransformation, STRUCT_OUT));
            structureService.save(structureOut.get());

        return Optional.of(transformationStructInOutDomain);
    }

获得全部结果：

谢谢。