Getting All Object attribut names reursively

Question

is there any way to get all attribute names of an object Company recursively: ExpectedOutput id, age, address {street, zipCode}, employee {firstName, LastName, profile}, profile {role, experience}. can we get this output without using SchemaFactoryWrapper..

class Company{
  String id;
  int age;
  Address address;
  List<Employee>
}
  class Employee{
  String firstName;
  String LastName
  Profile profile;
}
class Address{
  String street;
  String zipCode;
}

class Profile{
  String role;
  int experience
}

Answer 1

Here is my solution :

private HashSet<String> traverse(Class<?> outputFilter) {
    Field[] objectFields = outputFilter.getDeclaredFields();
    HashSet<String> fieldNames = new HashSet<>();
    for (Field field : objectFields) {
        fieldNames.add(field.getName());
        if(isValidField(field)){
            fieldNames.add("{");
            Class<?>  clazz =  (Class<?>) ((ParameterizedType) field.getGenericType()).getActualTypeArguments()[0];
            fieldNames.addAll(traverse(clazz));
            fieldNames.add("}");
        }
    }
    return fieldNames;
}



private boolean isValidField(Field field){
    if (field.getType().isAssignableFrom(List.class) |
            field.getType().isAssignableFrom(Set.class)){ //TODO Map
        Class<?> clazz = ((Class<?>) ((ParameterizedType) field.getGenericType()).getActualTypeArguments()[0]);
        return !clazz.isPrimitive() && !clazz.equals(String.class);
    }
    else if (field.getType().equals(Object.class) && !field.getType().isPrimitive())
        return true;
    return false;
}