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Vector and Template

joaoelson (2)
Hello everyone.
I am creating a lib. In this lib I need to create a template where the T object (class) will be added inside the vector.
I have questions about a code I created to work with this data structure. This data structure will create a large xml that has a parent and children, where many of them are containers.
The code I am using is working perfectly, but I have doubts if this is the correct way.

This code is intended to demonstrate the template class "Container". The only purpose is to have some idea of how to work with containers inside containers in two or more levels.

Does anyone have a better idea?
Thank you all.

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#include <iostream>
#include <vector>
#include <memory>
#include <string>
using namespace std;
enum class Tvehicle {none = -1, bike, car, suv, truck}; 

template <class T>
class Container
{
public:
    vector <T> items;
    T obj;
public:
    Container(){}
    ~Container(){ items.clear(); }
    void add();
};

template<class T>
void Container<T>::add()
{
   items.push_back(obj);
   obj.clear();
}

//------------------------------------------------
class People
{
    string m_name;
    string m_lastName;
    int m_age;
  public:
    People(){}
    void clear() { 
        this->m_name.clear();
        this->m_lastName.clear();
        this->m_age = 0;
    }
    string get_name() const { return this->m_name; }
    void set_name(const string &name) { this->m_name = name; }
    string get_lastName() const { return this->m_lastName; }
    void set_lastName(const string &lastName) { this->m_lastName = lastName; }
    int get_age(){ return this->m_age; }
    void set_age(const int age){ this->m_age = age; }
};

//------------------------------------------------

class Property {
    int m_bedroom;
public:
    Property (){}
    void clear() { this->m_bedroom = 0; }
    int get_bedroom(){ return this->m_bedroom; }
    void set_bedroom(const int bedroom){ this->m_bedroom = bedroom; }
};

//------------------------------------------------
class Vehicle{
    int m_year;
    int m_power;
    Tvehicle m_type;
  public:
    Vehicle(){}
    void clear() {
        this->m_year = 0;
        this->m_power = 0;
        this->m_type = Tvehicle::none;
    }
    int get_year() const { return this->m_year; }
    void set_year(const int &year) { this->m_year = year; }
    int get_power() const { return  this->m_power; }
    void set_power(const int &power) { this->m_power = power; }
    Tvehicle get_type() const { return  this->m_type; }
    void set_type(const Tvehicle &type) { this->m_type = type; }
};

//------------------------------------------------
class Employee: public People{
 public:
    Employee(){}
    void clear() {
        this->child.obj.clear();
        this->child.items.clear();
        this->property.obj.clear();
        this->property.items.clear();
        this->vehicle.obj.clear();
        this->vehicle.items.clear();
    }
    Container<People> child;
    Container<Property> property;
    Container<Vehicle> vehicle;
};

//------------------------------------------------
class Company: public People{
    int m_department;
public:
    Company(){}
    void clear() {
        this->set_age(0);
        this->m_department = 0;
        this->employee.obj.clear();
        this->employee.items.clear();
        this->vehicle.obj.clear();
        this->vehicle.items.clear();
    }
    int get_foundation(){ return this->get_age(); }
    void set_foundation(const int foundation){ this->set_age(foundation); }
    int get_department() const { return this->m_department; }
    void set_department(const int &department) { this->m_department = department; }
    
    Container<Employee> employee;
    Container<Vehicle> vehicle;
};

//------------------------------------------------
class Corporation{
    string m_name;
public:
    Corporation(){}
    void clear() {
        this->m_name.clear();
        this->company.obj.clear();
        this->company.items.clear();
    }
    string get_name() const { return this->m_name; }
    void set_name(const string &name) { this->m_name = name; }

    Container<Company> company;
};

Last edited on
joaoelson (2)
As the code is very large, the main function of the code above is in this post.
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int main(int argc, char **argv)
{
    //create corporation
    shared_ptr<Corporation> corp(new Corporation);
    corp->set_name("Mint");
    //company 1
    corp->company.obj.set_name("COMP1");
    corp->company.obj.set_foundation(1980);
    corp->company.obj.set_department(10);
        //company1/employee1
        corp->company.obj.employee.obj.set_name("Mary");
        corp->company.obj.employee.obj.set_lastName("Helix");
        corp->company.obj.employee.obj.set_age(35);
            //employee1/child1
            corp->company.obj.employee.obj.child.obj.set_name("Kya");
            corp->company.obj.employee.obj.child.obj.set_age(10);
            corp->company.obj.employee.obj.child.add();
            //employee1/child2
            corp->company.obj.employee.obj.child.obj.set_name("Poul");
            corp->company.obj.employee.obj.child.obj.set_age(15);
            corp->company.obj.employee.obj.child.add();
            //employee1/property
            corp->company.obj.employee.obj.property.obj.set_bedroom(4);
            corp->company.obj.employee.obj.property.add();
            //employee1/vehicle1
            corp->company.obj.employee.obj.vehicle.obj.set_type(Tvehicle::car);
            corp->company.obj.employee.obj.vehicle.obj.set_year(2018);
            corp->company.obj.employee.obj.vehicle.add();
            //employee1/vehicle2
            corp->company.obj.employee.obj.vehicle.obj.set_type(Tvehicle::suv);
            corp->company.obj.employee.obj.vehicle.obj.set_year(2020);
            corp->company.obj.employee.obj.vehicle.add();
        corp->company.obj.employee.add();//add employee
        //employee2
        corp->company.obj.employee.obj.set_name("Freddie");
        corp->company.obj.employee.obj.set_lastName("Allen");
        corp->company.obj.employee.obj.set_age(32);
            //employee1/child1
            corp->company.obj.employee.obj.child.obj.set_name("John");
            corp->company.obj.employee.obj.child.obj.set_age(8);
            corp->company.obj.employee.obj.child.add();
            //employee1/property
            corp->company.obj.employee.obj.property.obj.set_bedroom(3);
            corp->company.obj.employee.obj.property.add();
            //employee1/vehicle1
            corp->company.obj.employee.obj.vehicle.obj.set_type(Tvehicle::car);
            corp->company.obj.employee.obj.vehicle.obj.set_year(2015);
            corp->company.obj.employee.obj.vehicle.add();
            //employee1/vehicle2
            corp->company.obj.employee.obj.vehicle.obj.set_type(Tvehicle::bike);
            corp->company.obj.employee.obj.vehicle.obj.set_year(2019);
            corp->company.obj.employee.obj.vehicle.add();
        corp->company.obj.employee.add();//add employee
        //company1/vehicle
        corp->company.obj.vehicle.obj.set_type(Tvehicle::bike);
        corp->company.obj.vehicle.obj.set_year(2020);
        corp->company.obj.vehicle.add();
        corp->company.obj.vehicle.obj.set_type(Tvehicle::car);
        corp->company.obj.vehicle.obj.set_year(2020);
        corp->company.obj.vehicle.add();
    corp->company.add();//add company1
    
    //company 2
    corp->company.obj.set_name("COMP2");
    corp->company.obj.set_foundation(1988);
    corp->company.obj.set_department(20);
        //company1/employee1
        corp->company.obj.employee.obj.set_name("Ravena");
        corp->company.obj.employee.obj.set_lastName("fux");
        corp->company.obj.employee.obj.set_age(36);
            //employee1/child
            corp->company.obj.employee.obj.child.obj.set_name("Julia");
            corp->company.obj.employee.obj.child.obj.set_age(13);
            corp->company.obj.employee.obj.child.add();
            //employee1/property
            corp->company.obj.employee.obj.property.obj.set_bedroom(4);
            corp->company.obj.employee.obj.property.add();
            //employee1/vehicle
            corp->company.obj.employee.obj.vehicle.obj.set_type(Tvehicle::suv);
            corp->company.obj.employee.obj.vehicle.obj.set_year(2020);
            corp->company.obj.employee.obj.vehicle.add();
        corp->company.obj.employee.add();//add employee
        //employee2
        corp->company.obj.employee.obj.set_name("Freddie");
        corp->company.obj.employee.obj.set_lastName("Allen");
        corp->company.obj.employee.obj.set_age(25);
            //employee1/child
                //no
            //employee1/property
            corp->company.obj.employee.obj.property.obj.set_bedroom(2);
            corp->company.obj.employee.obj.property.add();
            //employee1/vehicle
            corp->company.obj.employee.obj.vehicle.obj.set_type(Tvehicle::bike);
            corp->company.obj.employee.obj.vehicle.obj.set_year(2019);
            corp->company.obj.employee.obj.vehicle.add();
        corp->company.obj.employee.add();//add employee
        //company1/vehicle
        corp->company.obj.vehicle.obj.set_type(Tvehicle::truck);
        corp->company.obj.vehicle.obj.set_year(2020);
        corp->company.obj.vehicle.add();
    corp->company.add();//add company2


    cout << "Corporation: " <<  corp->get_name() << endl;
    cout << "total companies: " <<  corp->company.items.size() << endl;
    cout << "\n";
    for(auto c = corp->company.items.begin(); c != corp->company.items.end(); c++) {

        cout << "Company: "<< c->get_name() << endl;
        cout << "Fundation: "<< c->get_foundation() << endl;
        cout << "Department: "<< c->get_department() << endl;
        
        //employee
        for(auto em = c->employee.items.begin(); em != c->employee.items.end(); em++) {
            cout << "...Company/Employee: "<< endl;
            cout << "...name: " << em->get_lastName() << ", " << em->get_name() << endl;
            cout << "...age:  " << em->get_age() << endl;
            //child
            for(auto ch = em->child.items.begin(); ch != em->child.items.end(); ch++) {
                cout << "......Employee/Children: "<< endl;
                cout << "......name: " << ch->get_name() << endl;
                cout << "......age:  " << ch->get_age() << endl;
            }
            for(auto pr = em->property.items.begin(); pr != em->property.items.end(); pr++) {
                cout << "......Employee/Property: "<< endl;
                cout << "......Bedroom: " << pr->get_bedroom() << endl;
            }
            for(auto ve = em->vehicle.items.begin(); ve != em->vehicle.items.end(); ve++) {
                cout << "......Employee/Vehicle: "<< endl;
                cout << "......Type: " << (int)ve->get_type() << endl;
                cout << "......Year: " << ve->get_year() << endl;
            }
            cout << "\n";
        }
        for(auto ve = c->vehicle.items.begin(); ve != c->vehicle.items.end(); ve++) {
            cout << "...Company/Vehicle: "<< endl;
            cout << "...Type: " << (int)ve->get_type() << endl;
            cout << "...Year: " << ve->get_year() << endl;
        }
        cout <<"--------------------" << endl;
        cout << "\n";
    }
    corp->clear();//clear all
    return 0;
}
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