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I am trying to map my entity to my DTO. For my knowlegde I'm trying different approaches. I succesfully used a map with implicit mapping, also an explicit map while using a PropertyMap with the configure method.

Now I'm trying to map explicit with the TypeMap. This last one I can't get to work.

Together with the getting started from Modelmapper, I used the answer in this thread as an example, How to use Explicit Map with Java 8 and ModelMapper? 

static ResponseB convertBEntityToDtoExplicitTypeMap(ModelB modelB){
    ModelMapper modelMapper = new ModelMapper();
    TypeMap<ModelB, ResponseB> typeMap = modelMapper.createTypeMap(ModelB.class, ResponseB.class);

    typeMap.addMappings(mapping -> {
        mapping.map(modelB.getId(), ResponseB::setId);
        mapping.map(modelB.getBankaccountName(), ResponseB::setB);
        mapping.map(modelB.isActive(), ResponseB::setActive);
    });

    return modelMapper.map(modelB, ResponseB.class);
}

The above block is my code example that doesn't work.

  • With the setId I have the error: Incompatible types: V is not convertible to Long.
  • The setB has the error: Incompatible types: V is not convertible to String.
  • The setActive has the error: Incompatible types: V is not convertible to Boolean.

How could I make this example work with the TypeMap?

Jeroen Mulder
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1 Answers1

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And by keep trying I figured it out myself.

I had to use the class instead of the object in the mapping.map

static ResponseB convertBEntityToDtoExplicitTypeMap(ModelB modelB){
    ModelMapper modelMapper = new ModelMapper();
    TypeMap<ModelB, ResponseB> typeMap = modelMapper.createTypeMap(ModelB.class, ResponseB.class);

    typeMap.addMappings(mapping -> {
        mapping.map(ModelB::getId, ResponseB::setId);
        mapping.map(ModelB::getBankaccountName, ResponseB::setB);
        mapping.map(ModelB::isActive, ResponseB::setActive);
    });

    return modelMapper.map(modelB, ResponseB.class);
}
Jeroen Mulder
  • 43
  • 2
  • 5