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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Ldap
* @subpackage Node
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: ChildrenIterator.php 17829 2009-08-26 15:07:10Z sgehrig $
*/
/**
* @see Zend_Ldap_Node
*/
require_once 'Zend/Ldap/Node.php';
/**
* Zend_Ldap_Node_ChildrenIterator provides an iterator to a collection of children nodes.
*
* @category Zend
* @package Zend_Ldap
* @subpackage Node
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Ldap_Node_ChildrenIterator implements Iterator, Countable, RecursiveIterator, ArrayAccess
{
/**
* An array of Zend_Ldap_Node objects
*
* @var array
*/
private $_data;
/**
* Constructor.
*
* @param array $data
* @return void
*/
public function __construct(array $data)
{
$this->_data = $data;
}
/**
* Returns the number of child nodes.
* Implements Countable
*
* @return int
*/
public function count()
{
return count($this->_data);
}
/**
* Return the current child.
* Implements Iterator
*
* @return Zend_Ldap_Node
*/
public function current()
{
return current($this->_data);
}
/**
* Return the child'd RDN.
* Implements Iterator
*
* @return string
*/
public function key()
{
return key($this->_data);
}
/**
* Move forward to next child.
* Implements Iterator
*/
public function next()
{
next($this->_data);
}
/**
* Rewind the Iterator to the first child.
* Implements Iterator
*/
public function rewind()
{
reset($this->_data);
}
/**
* Check if there is a current child
* after calls to rewind() or next().
* Implements Iterator
*
* @return boolean
*/
public function valid()
{
return (current($this->_data)!==false);
}
/**
* Checks if current node has children.
* Returns whether the current element has children.
*
* @return boolean
*/
public function hasChildren()
{
if ($this->current() instanceof Zend_Ldap_Node) {
return $this->current()->hasChildren();
} else {
return false;
}
}
/**
* Returns the children for the current node.
*
* @return Zend_Ldap_Node_ChildrenIterator
*/
public function getChildren()
{
if ($this->current() instanceof Zend_Ldap_Node) {
return $this->current()->getChildren();
} else {
return null;
}
}
/**
* Returns a child with a given RDN.
* Implements ArrayAccess.
*
* @param string $rdn
* @return Zend_Ldap_node
*/
public function offsetGet($rdn)
{
if ($this->offsetExists($rdn)) {
return $this->_data[$rdn];
} else {
return null;
}
}
/**
* Checks whether a given rdn exists.
* Implements ArrayAccess.
*
* @param string $rdn
* @return boolean
*/
public function offsetExists($rdn)
{
return (array_key_exists($rdn, $this->_data));
}
/**
* Does nothing.
* Implements ArrayAccess.
*
* @param string $name
* @return null
*/
public function offsetUnset($name) { }
/**
* Does nothing.
* Implements ArrayAccess.
*
* @param string $name
* @param mixed $value
* @return null
*/
public function offsetSet($name, $value) { }
/**
* Get all children as an array
*
* @return array
*/
public function toArray()
{
$data = array();
foreach ($this as $rdn => $node) {
$data[$rdn] = $node;
}
return $data;
}
}
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