#include "Link.h"

#include <QDebug>

template <class ValueType>
class Object
{
public:
    Object() {}

    ValueType value() const {
        return _value;
    }

    void setValue(const ValueType &value) {
        _value = value;
    }

    void print() const {
        qDebug() << "object:" << value().toString();
    }

    void link(const Object<ValueType> *other) {
        Link *ln = new Link();
        ln->setFromObject(this);
        ln->setToObject(other);
        _links.append(ln);
    }

private:
    ValueType _value;
    QList<Link*> _links;

};

#ifndef LINK_H
#define LINK_H

#include "Object.h" //упс
template <class ValueType>
class Link
{
public:
    Link() {}

    Object<ValueType> *fromObject() const {
        return _fromObject;
    }

    void setFromObject(Object<ValueType> *fromObject) {
        _fromObject = fromObject;
    }

    Object<ValueType> *toObject() const {
        return _toObject;
    }

    void setToObject(Object<ValueType> *toObject) {
        _toObject = toObject;
    }


private:
    Object<ValueType> *_fromObject;
    Object<ValueType> *_toObject;
};

template <class T>
class Object<T>;

template <class ValueType, class LinkType>
class Object
{
    LinkType<ValueType>
...

template <class ValueType>
class Link
{
...
    Object<ValueType, Link<ValueType> *_someObject;

template<class T>
class Object;