NSNode.cc
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上传日期:2015-12-11
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- /*
- * Copyright (c) 2007 Regents of the SIGNET lab, University of Padova.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University of Padova (SIGNET lab) nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- // CLASS NSNode
- // Realizza la struttura base per una lista a collegamento doppio
- // Contiene i riferimenti al nodo precedente , al nodo successivo
- // al contenitore di appartenenza e all-elemento di informazione
- // ospitato
- // implementa CPosition
- #include "NSNode.h"
- //Struttura dati
- //Costruttore
- NSNode::NSNode (NSNode* newPrev,NSNode* newNext,Object* el) : CPosition(){
- prev=newPrev;
- next=newNext;
- elem=el;
- }
- NSNode::NSNode () :CPosition() {
- }
- NSNode::~NSNode () {
- delete elem;
- }
- //Metodi d'interfaccia
- Object* NSNode::element(){
- return elem;
- }
- //Metodi di lettura
- NSNode* NSNode::getNext(){
- return next;
- }
- NSNode* NSNode::getPrev(){
- return prev;
- }
- //Metodi scrittori
- void NSNode::setNext(NSNode* newnext){
- next=newnext;
- }
- void NSNode::setPrev(NSNode* newprev){
- prev=newprev;
- }
- void NSNode::setElement(Object* newElem){
- elem=newElem;
- }