HDBandit

public class GroupCreateTaskRequest extends AbstractCreateTaskRequest {
	
	private String groupName;

	public GroupCreateTaskRequest() {
		super(TaskType.GROUP);
	}

	public String getGroupName() {
		return groupName;

HDBandit

public class UserCreateTaskRequest extends AbstractCreateTaskRequest {
	
	private String userName;

	public UserCreateTaskRequest() {
		super(TaskType.USER);
	}

	public String getUserName() {
		return userName;

HDBandit

@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "taskType")  
@JsonSubTypes({ @Type(value = UserCreateTaskRequest.class, name = "user"), @Type(value = GroupCreateTaskRequest.class, name = "group") }) 
public abstract class AbstractCreateTaskRequest implements CreateTaskRequest {
	
	private String title;
	private String description;
	private TaskType taskType;

	public AbstractCreateTaskRequest(TaskType taskType) {
		this.taskType = taskType;

HDBandit

public interface CreateTaskRequest {
	
	String getTitle();
	
	String getDescription();
	
	TaskType getType();

}

HDBandit

MapperFactory mapperFactory = new DefaultMapperFactory.Builder().build();
// map Person-PersonBasicInfoDTO
mapperFactory.classMap(Person.class, PersonBasicInfoDTO.class)
                .byDefault()
                .register();
// map Person-PersonCompleteInfoDTO
mapperFactory.classMap(Person.class, PersonCompleteInfoDTO.class)
                .byDefault()
                .register();

HDBandit

public class PersonCompleteInfoDTO {

    private String name;
    private String surname;
    private int age;
    private String address;
    private String jobLocation;
    private int salary;
    private String jobCategory;

HDBandit

public class PersonBasicInfoDTO {

    private String name;
    private String surname;
    private int age;
    private String address;

    public String getName() {
        return name;
    }

HDBandit

package com.hdbandit.orika_mapper;

public class Person {

    private String name;
    private String surname;
    private int age;
    private String address;
    private String jobLocation;
    private int salary;

HDBandit

// business logic
public static void processCars(List<Car> cars, Predicate<Car> carPredicate, Consumer<Car> carConsumer) {
  for (Car car : cars) {
    if (carPredicate.test(car)) {
      carConsumer.accept(car);
    }
  }
}

...

HDBandit

// business logic
public static List<Car> filterCars(List<Car> cars, Predicate<Car> carPredicate) {
  ArrayList<Car> filteredCars = new ArrayList<Car>();
  for (Car car : cars) {
    if (carPredicate.test(car)) {
      filteredCars.add(car);
    }
  }
  return filteredCars;
}