public final function __construct()
 {
     $this->_init();
     if ($this->_inflector == null) {
         throw new Zend_Tool_Endpoint_Exception('An inflector for this endpoint was not registered in _init().');
     }
     if ($this->_request == null) {
         $this->_request = new Zend_Tool_Endpoint_Request();
     }
     if ($this->_response == null) {
         $this->_response = new Zend_Tool_Endpoint_Response();
     }
     $this->_request->setInflector($this->_inflector);
 }