Map several fields to List with a mapstruct

Question

for example, I have following entity:

class Bank
{
String name;
String employee1;
String employee2;
}

And a Dto object:

class BankDto
{
String name;
List<String> employeeList;
}

Is there a proper way how to map Bank to BankDto, so employee1 and employee2 fields will be added to employeeList collection?

Answer 1

You can resolve your issue by adding an after mapping method to your mapping interface:

@Mapper
public abstract class Mapper {

    public abstract BankDto getBankDto(Bank bank);

    @AfterMapping
    public void setEmployees(Bank bank, @MappingTarget BankDto bankDto) {
        bankDto.setEmployeeList(new List<String>());
        bankDto.getEmployeeList().add(bank.employee1);
        bankDto.getEmployeeList().add(bank.employee2);
    }
}