Changes
* used as definition of root nodes in a [[View]]
==FilterClass==
The FilterCLass is a reference to the root node where all the matching content is beeing compared with the query criteria. The root node itself does not need to fullfill the classification [[SYSCLS_OBJECTWITHIDMARKER]] as all derived MetaClasses are recursively checked for implementing the classification interface. All the matching content then is aggregated to one query result.
The filter criteria of an IdMarkerScanQuery basically consists of an ID Marker, a Barcode or a QR Code. If these code search criteria are logically combined with "AND" if provided together (e.g. QR Code AND Barcode). On the other hand providing only one of these scan code values, the content is matched to the specified code type (e.g. Barcode) only.
== See also ==
* [[Query|Query]]
* [[QueryItem|QueryItem]]
[[Category:System MetaClasses]]
[[Category:Queries]]
