#ifndef _LIST_H
#define _LIST_H

#include <Node.h>

class List {
        public:
                List();

                virtual List *copy() = 0;
                int     getQuantity();

                virtual void  append(Node *, Node *) = 0;
                virtual void  insert(Node *, Node *) = 0;
                virtual Node *obtain(Node *) = 0;

                virtual void  display(int) = 0;
                virtual Node *find(int) = 0;

                virtual Node *getFirst() = 0;
                virtual Node *getLast() = 0;

                virtual ~List();

        protected:
                void  setQuantity(int);

                virtual void  setFirst(Node *) = 0;
                virtual void  setLast (Node *) = 0;

                virtual Node *setListPosition(int) = 0;
                virtual int   getListPosition(Node *) = 0;

        private:
                int   quantity;
};

#endif