public function addFilterRule(IFilterRule $objFilterRule)
    {
        // Reset matches as they are most likely invalid now.
        $this->arrMatches = null;

        $this->arrFilterRules[] = $objFilterRule;

        return $this;
    }
public function addFilterRule(IFilterRule $objFilterRule)
    {
        // Reset matches as they are most likely invalid now.
        $this->arrMatches = null;

        $this->arrFilterRules[] = $objFilterRule;

        return $this;
    }
{@inheritdoc}