public function getParams() {
        $return       = $this->_params;
        $paramSources = $this->getParamSources();
        if (in_array('_GET', $paramSources)
            && isset($this->GET)
            && is_array($this->GET)
        ) {
            $return += $this->GET;
        }
        if (in_array('_POST', $paramSources)
            && isset($this->POST)
            && is_array($this->POST)
        ) {
            $return += $this->POST;
        }
        return $return;
    }