question: public void addAssignedVirtualArrays ( Set < String > virtualArrayURIs ) { if ( ( virtualArrayURIs != null ) && ( ! virtualArrayURIs . isEmpty ( ) ) ) { HashSet < String > addVirtualArrays = new HashSet < String > ( ) ; addVirtualArrays . addAll ( virtualArrayURIs ) ; if ( _assignedVirtualArrays == null ) { setAssignedVirtualArrays ( new StringSet ( ) ) ; _assignedVirtualArrays . addAll ( addVirtualArrays ) ; } else { _assignedVirtualArrays . addAll ( addVirtualArrays ) ; } updateVirtualArrayTags ( ) ; } }
target:  Adds the passed virtual array URIs to the set of virtual array URIs assigned to the resources by the user.