Mapstruct transform obect to list

Question

I have to map an object to list of another objects like below

public List map(ClassA A){

 List<ClassB> list = new ArrayList<ClassB>();
 ClassB C1 = new ClassB();
  ClassB C2= new ClassB();

.... Logic to populate C1 and C2 from ClassA add C1 and C2 to list

return list;

}

In the generated Impl class, I am getting a complilation error "Cannot find the symbol ClassB". The class "ClassB" is not imported to the generated impl class. Please help me in solving this.

Please, provide your mapper, ClassA and ClassB! – Paul Marcelin Bejan Jul 27 '22 at 21:11 — Paul Marcelin Bejan, Jul 27 '22 at 21:11

score 0 · Answer 1 · answered Mar 23 '16 at 07:28

MapStruct cannot generate mapping methods between iterable types (List<ClassB>) and non-iterable types (ClassA).

Can you share the definitions of ClassA and ClassB in more detail? Then we can try and find a good solution. Probably it's simplest though to just implement this one from hand (esp. if ClassA contains a list of ClassB, in which case no mapping for the list elements is required).

Mapstruct transform obect to list

1 Answers1