original_string: public function forUpdate($flag = true)
      {
          $this->_parts[self::FOR_UPDATE] = (bool) $flag;
          return $this;
      }
code: public function forUpdate($flag = true)
      {
          $this->_parts[self::FOR_UPDATE] = (bool) $flag;
          return $this;
      }
code_tokens: public function forUpdate ( $ flag = true ) { $ this -> _parts [ self :: FOR_UPDATE ] = ( bool ) $ flag ; return $ this ; }
docstring: Makes the query SELECT FOR UPDATE.
  
  @param bool $flag Whether or not the SELECT is FOR UPDATE (default true).
  @return Zend_Db_Select This Zend_Db_Select object.
docstring_tokens: Makes the query SELECT FOR UPDATE .