public function setRule($pOperator = self::AUTOFILTER_COLUMN_RULE_EQUAL, $pValue = '', $pGrouping = NULL) {
		$this->setOperator($pOperator);
		$this->setValue($pValue);
		//	Only set grouping if it's been passed in as a user-supplied argument,
		//		otherwise we're calculating it when we setValue() and don't want to overwrite that
		//		If the user supplies an argumnet for grouping, then on their own head be it
		if ($pGrouping !== NULL)
			$this->setGrouping($pGrouping);

		return $this;
	}