+ /**
+ * Checks whether there is an entry for given node instance
+ *
+ * @param $nodeInstance An instance of a NodeHelper class
+ * @return $isFound Whether a node id has been found for this node
+ */
+ public function ifNodeDataIsFound (NodeHelper $nodeInstance) {
+ // Is there cache?
+ if (!isset($GLOBALS[__METHOD__])) {
+ // Now get a search criteria instance
+ $searchInstance = ObjectFactory::createObjectByConfiguredName('search_criteria_class');
+
+ // Search for the node number one which is hard-coded the default
+ $searchInstance->addCriteria(NodeInformationDatabaseWrapper::DB_COLUMN_NODE_NR, 1);
+ $searchInstance->addCriteria(NodeInformationDatabaseWrapper::DB_COLUMN_NODE_TYPE, $nodeInstance->getRequestInstance()->getRequestElement('mode'));
+ $searchInstance->setLimit(1);
+
+ // Get a result back
+ $resultInstance = $this->doSelectByCriteria($searchInstance);
+
+ // Set result instance in node instance
+ $nodeInstance->setResultInstance($resultInstance);
+
+ // Is it valid?
+ $GLOBALS[__METHOD__] = $resultInstance->next();
+ } // END - if
+
+ // Return it
+ return $GLOBALS[__METHOD__];
+ }
+