00001 <?php
00008 #include <type.php>
00009 include_once('/media/SRV/zigmoyd/usr/lib/module/common/type.php');
00010
00015 class zItem extends zCore{
00022 var $type;
00029 var $data;
00036 var $link=null;
00043 var $parent=null;
00044
00051 function zItem($type){
00052 $this->type = $type;
00053 }
00059 function hasParent(){
00060 return is_null($this->parent);
00061 }
00067 function setParent(&$parentNode){
00068 if(!ofPolymorphicType($parentNode, 'zItem')){
00069 perror("<code>zigmoyd.common.zItem.setParent()</code><br />parentItem is not of zItem Class Type instead its a ".typeId($parentNode)." Type So It Cannot be linked with a zItem Object");
00070 return false;
00071 }
00072 if(!(strtolower($this->getType()) == strtolower($nextElem->getType()))){
00073 perror("<code>zigmoyd.common.zItem.setParent()</code><br />parentItem Node is not of same Type of this Item Node<br />Expecting ".$this->getType()." But getting ".$parentNode->getType());
00074 return false;
00075 }
00076 $this->parent = $parentNode;
00077 return true;
00078 }
00084 function &getParent(){
00085 return $this->parent;
00086 }
00093 function setData($val){
00094 if(ofType($val, $this->type)){
00095 $this->data = $val;
00096 return true;
00097 }
00098 perror("<code>zigmoyd.common.zItem.setData($val)</code><br />DataType Mismatch. Expecting value of Type $this->type But ".typeId($val)." Type value Given.<br />Not setting the Data in teh Data Block");
00099 return false;
00100 }
00106 function getData(){
00107 return $this->data;
00108 }
00114 function hasNext(){
00115 return !is_null($this->link);
00116 }
00123 function setNext($nextElem){
00124 if(!ofType($nextElem, 'zItem')){
00125 perror("<code>zigmoyd.common.zItem.setNext()</code><br />nextItem is not of zItem Class Type instead its a ".typeId($nextElem)." Type So It Cannot be linked with a zItem Object");
00126 return false;
00127 }
00128 if(strtolower($this->getType()) == strtolower($nextElem->getType())){
00129 $nextElem->setParent($this);
00130 $this->link = $nextElem;
00131 return true;
00132 }
00133 perror("<code>zigmoyd.common.zItem.setNext()</code><br />nextItem Node is not of same Type of this Item Node<br />Expecting ".$this->getType()." But getting ".$nextElem->getType());
00134 return false;
00135 }
00141 function &getNext(){
00142 return $this->link;
00143 }
00148 function removeNext(){
00149 unset($this->link);
00150 $this->link = null;
00151 }
00157 function getType(){
00158 return $this->type;
00159 }
00166 function isDataValid($type){
00167 return (typeId($this->data)==$type);
00168 }
00175 function isValid($type){
00176 if($this->isDataValid($type)){
00177 if($this->hasNext()){
00178 return $this->isValid($this->type);
00179 }
00180 return true;
00181 }
00182 return false;
00183 }
00184 }
00186 ?>
