/** * Populates properties with a specified XML string. * * @param string $xmlString An XML string representing the topic information. * * @return none */ public function parseXml($xmlString) { $this->_entry->parseXml($xmlString); $content = $this->_entry->getContent(); if (is_null($content)) { $this->_topicDescription = null; } else { $this->_topicDescription = TopicDescription::create($content->getText()); } }