protected function _getIterator()
    {
        if (is_null($this->iterator)) {
            $this->iterator = $this->_resolveIterator($this->_getDataStore());
        }

        return $this->iterator;
    }
protected function _getIterator()
    {
        if (is_null($this->iterator)) {
            $this->iterator = $this->_resolveIterator($this->_getDataStore());
        }

        return $this->iterator;
    }
protected function _getIterator ( ) { if ( is_null ( $ this -> iterator ) ) { $ this -> iterator = $ this -> _resolveIterator ( $ this -> _getDataStore ( ) ) ; } return $ this -> iterator ; }
Retrieves the iterator of this instance's data store.

@since [*next-version*]

@return Iterator The iterator.
Retrieves the iterator of this instance s data store .