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BAEL-8305 Map iterable to object containing iterable #17347

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Merged
merged 2 commits into from
Sep 6, 2024
Merged

BAEL-8305 Map iterable to object containing iterable #17347

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8b1fed0
BAEL-8305 Map iterable to object containing iterable
apelan Aug 14, 2024
48fb535
BAEL-8305 Minor changes - Resolve MR comments
apelan Aug 22, 2024
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25 changes: 25 additions & 0 deletions mapstruct-2/src/main/java/com/baeldung/mapstruct/iterable/DepartmentMapper.java
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package com.baeldung.mapstruct.iterable;

import java.util.List;

import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import org.mapstruct.factory.Mappers;

import com.baeldung.mapstruct.iterable.model.Department;
import com.baeldung.mapstruct.iterable.model.Employee;

@Mapper
public interface DepartmentMapper {
DepartmentMapper INSTANCE = Mappers.getMapper(DepartmentMapper.class);

default Department map(List<Employee> employees) {
Department department = new Department();
department.setEmployees(employees);
return department;
}

@Mapping(target = "employees", source = "employees")
@Mapping(target = "manager", source = "departmentManager")
Department mapWithManager(List<Employee> employees, Employee departmentManager);
}
25 changes: 25 additions & 0 deletions mapstruct-2/src/main/java/com/baeldung/mapstruct/iterable/model/Department.java
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package com.baeldung.mapstruct.iterable.model;

import java.util.List;

public class Department {

private List<Employee> employees;
private Employee manager;

public List<Employee> getEmployees() {
return employees;
}

public void setEmployees(List<Employee> employees) {
this.employees = employees;
}

public Employee getManager() {
return manager;
}

public void setManager(Employee manager) {
this.manager = manager;
}
}
31 changes: 31 additions & 0 deletions mapstruct-2/src/main/java/com/baeldung/mapstruct/iterable/model/Employee.java
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package com.baeldung.mapstruct.iterable.model;

public class Employee {

private String name;
private String phoneNumber;

public Employee() {
}

public Employee(String name, String phoneNumber) {
this.name = name;
this.phoneNumber = phoneNumber;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getPhoneNumber() {
return phoneNumber;
}

public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
}
51 changes: 51 additions & 0 deletions mapstruct-2/src/test/java/com/baeldung/mapstruct/iterable/DepartmentMapperTest.java
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package com.baeldung.mapstruct.iterable;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

import java.util.Arrays;
import java.util.List;

import org.junit.jupiter.api.Test;

import com.baeldung.mapstruct.iterable.model.Department;
import com.baeldung.mapstruct.iterable.model.Employee;

public class DepartmentMapperTest {

private final DepartmentMapper departmentMapper = DepartmentMapper.INSTANCE;
private final List<Employee> employees = Arrays.asList(
new Employee("John", "(555)1111-1234"),
new Employee("Jane", "(555)2222-4321")
);

@Test
void givenListOfEmployees_whenMapDepartment_thenAssertMappingIsSuccessful() {
Department department = departmentMapper.map(employees);

assertNotNull(department);
assertNotNull(department.getEmployees());
assertEquals(employees.size(), department.getEmployees().size());
assertEquals(employees.get(0).getName(), department.getEmployees().get(0).getName());
assertEquals(employees.get(0).getPhoneNumber(), department.getEmployees().get(0).getPhoneNumber());
assertEquals(employees.get(1).getName(), department.getEmployees().get(1).getName());
assertEquals(employees.get(1).getPhoneNumber(), department.getEmployees().get(1).getPhoneNumber());
}

@Test
void givenListOfEmployeesAndManager_whenMapDepartment_thenAssertMappingIsSuccessful() {
Department department = departmentMapper.mapWithManager(employees, employees.get(0));

assertNotNull(department);
assertNotNull(department.getEmployees());
assertEquals(employees.size(), department.getEmployees().size());
assertEquals(employees.get(0).getName(), department.getEmployees().get(0).getName());
assertEquals(employees.get(0).getPhoneNumber(), department.getEmployees().get(0).getPhoneNumber());
assertEquals(employees.get(1).getName(), department.getEmployees().get(1).getName());
assertEquals(employees.get(1).getPhoneNumber(), department.getEmployees().get(1).getPhoneNumber());

assertNotNull(department.getManager());
assertEquals(department.getManager().getName(), department.getEmployees().get(0).getName());
assertEquals(department.getManager().getPhoneNumber(), department.getEmployees().get(0).getPhoneNumber());
}
}