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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 Schema
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * Zend_Ldap_Node_Schema_Item provides a base implementation for managing schema
  * items like objectClass and attribute.
  *
  * @category   Zend
  * @package    Zend_Ldap
  * @subpackage Schema
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 abstract class Zend_Ldap_Node_Schema_Item implements ArrayAccess, Countable
 {
     /**
      * The underlying data
      *
      * @var array
      */
     protected $_data;
 
     /**
      * Constructor.
      *
      * @param array $data
      */
     public function __construct(array $data)
     {
         $this->setData($data);
     }
 
     /**
      * Sets the data
      *
      * @param  array $data
      * @return Zend_Ldap_Node_Schema_Item Provides a fluent interface
      */
     public function setData(array $data)
     {
         $this->_data = $data;
         return $this;
     }
 
     /**
      * Gets the data
      *
      * @return array
      */
     public function getData()
     {
         return $this->_data;
     }
 
     /**
      * Gets a specific attribute from this item
      *
      * @param  string $name
      * @return mixed
      */
     public function __get($name)
     {
         if (array_key_exists($name, $this->_data)) {
             return $this->_data[$name];
         } else {
             return null;
         }
     }
 
     /**
      * Checks whether a specific attribute exists.
      *
      * @param  string $name
      * @return boolean
      */
     public function __isset($name)
     {
         return (array_key_exists($name, $this->_data));
     }
 
     /**
      * Always throws BadMethodCallException
      * Implements ArrayAccess.
      *
      * This method is needed for a full implementation of ArrayAccess
      *
      * @param  string $name
      * @param  mixed $value
      * @return null
      * @throws BadMethodCallException
      */
     public function offsetSet($name, $value)
     {
         throw new BadMethodCallException();
     }
 
     /**
      * Gets a specific attribute from this item
      *
      * @param  string $name
      * @return mixed
      */
     public function offsetGet($name)
     {
         return $this->__get($name);
     }
 
     /**
      * Always throws BadMethodCallException
      * Implements ArrayAccess.
      *
      * This method is needed for a full implementation of ArrayAccess
      *
      * @param  string $name
      * @return null
      * @throws BadMethodCallException
      */
     public function offsetUnset($name)
     {
         throw new BadMethodCallException();
     }
 
     /**
      * Checks whether a specific attribute exists.
      *
      * @param  string $name
      * @return boolean
      */
     public function offsetExists($name)
     {
         return $this->__isset($name);
     }
 
     /**
      * Returns the number of attributes.
      * Implements Countable
      *
      * @return int
      */
     public function count()
     {
         return count($this->_data);
     }
 }