PHP Classes

File: ListeNode.php

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  Classes of Oddleif Halvorsen   Double Linked List   ListeNode.php   Download  
File: ListeNode.php
Role: Class source
Content type: text/plain
Description: The class for the list node
Class: Double Linked List
A double linked list similar to LinkedList in Java
Author: By
Last change: v1.2 - Due to the major changes in the internal design of the LinkedList.php the ListeNode.php is also updated with som minor but critical changes. The previous version will not work on the current version of the LinkedList.php.
Date: 19 years ago
Size: 1,312 bytes
 

Contents

Class file image Download
<?php
/**
 * <p>Title: Double linked list</p>
 * <p>Description: Implementation of a double linked list in PHP</p>
 * @author Oddleif Halvorsen | leif-h@online.no
 * @version 1.2
 */
 
 
class ListNode{
    var $previousNode;
    var $nextNode; //a reference to the next node
    var $element; //the object || value for this node.
   
    /**
     * Constructs a ListNode.
     * @param $element The object/value of the node
     */
    function ListNode($element = NULL){
        $this->element = &$element;
    }
   
    /**
     * Sets the reference to the previous node.
     * @param &$node The previous node.
     */
    function setPrevious($node){
        $this->previousNode = &$node;
    }
   
    /**
     * Sets the reference to the next node.
     * @param &$node The next node.
     */
    function setNext($node){
        $this->nextNode = &$node;
    }
   
    /**
     * Returns the reference to the previous node.
     * @return The reference to the previous node.
     */
    function &getPrevious(){
        return $this->previousNode;
    }

    /**
     * Returns the reference to the next node.
     * @return The reference to the next node.
     */
    function &getNext(){
        return $this->nextNode;
    }

    /**
     * Returns the object/value of the node
     * @return The object/value of the node
     */
    function getNodeValue(){
        return $this->element;
    }
}
?>